Unexpected BSOD

beethoven

New member
Local time
12:24 AM
Messages
20
Hello,

I have a problem with my laptop. I have a Sony VAIO VGN-FW290J with 4GB RAM memory, running Microsoft Windows 7 Professional x64 and I have received about 4 BSOD in few days. From what I have noticed, I have to mention that all these occurred when I was running uTorrent (having about 13-15 active torrents - about 75GB total). I am not sure this is the reason, but I found this to be the common point of all crashes. The BSODs raised up not in a petitioner moment of the laptop. The max download speed I can reach is about 3MB/s. I also must say that 2 of the crashes happened in full download speed (just mentioned). I updated the driver of my WiFi card (Intel 5100AGN) and I have received a new BSOD even with the latest driver.
I have played few games on it, the newest one being the new Call of Duty 6 - Modern Warfare 2 and there was no problem.

I'd be glade if anybody will answer and help me solve this problem, since it is very annoying for me.
Thank you very much.



Here is the report found saved in Windows partition:

Version=1
EventType=BlueScreen
EventTime=129044331288610979
ReportType=4
Consent=1
UploadTime=129044331548551576
ReportIdentifier=
IntegratorReportIdentifier=120409-17487-01
Response.type=4
Response.AnalysisBucket=X64_0xA_netw5v64!mpdlAllocateNetBufferSGList+8b
DynamicSig[1].Name=OS Version
DynamicSig[1].Value=6.1.7600.2.0.0.256.48
DynamicSig[2].Name=Locale ID
DynamicSig[2].Value=1048
UI[2]=C:\Windows\system32\wer.dll
UI[3]=Windows has recovered from an unexpected shutdown
UI[4]=Windows can check online for a solution to the problem.
UI[5]=&Check for solution
UI[6]=&Check later
UI[7]=Cancel
UI[8]=Windows has recovered from an unexpected shutdown
UI[9]=A problem caused Windows to stop working correctly. Windows will notify you if a solution is available.
UI[10]=Close
Sec[0].Key=BCCode
Sec[0].Value=a
Sec[1].Key=BCP1
Sec[1].Value=0000000000000000
Sec[2].Key=BCP2
Sec[2].Value=0000000000000002
Sec[3].Key=BCP3
Sec[3].Value=0000000000000000
Sec[4].Key=BCP4
Sec[4].Value=FFFFF80002C0F477
Sec[5].Key=OS Version
Sec[5].Value=6_1_7600
Sec[6].Key=Service Pack
Sec[6].Value=0_0
Sec[7].Key=Product
Sec[7].Value=256_1
State[0].Key=Transport.DoneStage1
State[0].Value=1
State[1].Key=CA
State[1].Value=1
State[2].Key=BLOB
State[2].Value=CHKSUM=A105A951AD644322D5573A356A4DB97E;BID=OCATAG;ID=83553209-241b-4e71-8c41-2605f89e7d9c;SUB=12//4//2009 12:45:43 PM
File[0].CabName=120409-17487-01.dmp
File[0].Path=120409-17487-01.dmp
File[0].Flags=851970
File[0].Type=2
File[0].Original.Path=C:\Windows\Minidump\120409-17487-01.dmp
File[1].CabName=sysdata.xml
File[1].Path=WER-48890-0.sysdata.xml
File[1].Flags=851970
File[1].Type=5
File[1].Original.Path=C:\Users\Betino\AppData\Local\Temp\WER-48890-0.sysdata.xml
File[2].CabName=WERInternalMetadata.xml
File[2].Path=WER3706.tmp.WERInternalMetadata.xml
File[2].Flags=589827
File[2].Type=5
File[2].Original.Path=C:\Users\Betino\AppData\Local\Temp\WER3706.tmp.WERInternalMetadata.xml
File[3].CabName=Report.cab
File[3].Path=Report.cab
File[3].Flags=196608
File[3].Type=7
File[3].Original.Path=Report.cab
FriendlyEventName=Shut down unexpectedly
ConsentKey=BlueScreen
AppName=Windows
AppPath=C:\Windows\System32\WerFault.exe
 
Last edited:

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
Hello,

I have a problem with my laptop. I have a Sony VAIO VGN-FW290J with 4GB RAM memory, running Microsoft Windows 7 Professional x64 and I have received about 4 BSOD in few days. From what I have noticed, I have to mention that all these occurred when I was running uTorrent (having about 13-15 active torrents - about 75GB total). I am not sure this is the reason, but I found this to be the common point of all crashes. The BSODs raised up not in a petitioner moment of the laptop. The max download speed I can reach is about 3MB/s. I also must say that 2 of the crashes happened in full download speed (just mentioned). I updated the driver of my WiFi card (Intel 5100AGN) and I have received a new BSOD even with the latest driver.
I have played few games on it, the newest one being the new Call of Duty 6 - Modern Warfare 2 and there was no problem.

I'd be glade if anybody will answer and help me solve this problem, since it is very annoying for me.
Thank you very much.



Here is the report found saved in Windows partition:
Code:
Version=1
EventType=BlueScreen
EventTime=129044331288610979
ReportType=4
Consent=1
UploadTime=129044331548551576
ReportIdentifier=
IntegratorReportIdentifier=120409-17487-01
Response.type=4
Response.AnalysisBucket=X64_0xA_netw5v64!mpdlAllocateNetBufferSGList+8b
DynamicSig[1].Name=OS Version
DynamicSig[1].Value=6.1.7600.2.0.0.256.48
DynamicSig[2].Name=Locale ID
DynamicSig[2].Value=1048
UI[2]=C:\Windows\system32\wer.dll
UI[3]=Windows has recovered from an unexpected shutdown
UI[4]=Windows can check online for a solution to the problem.
UI[5]=&Check for solution
UI[6]=&Check later
UI[7]=Cancel
UI[8]=Windows has recovered from an unexpected shutdown
UI[9]=A problem caused Windows to stop working correctly.  Windows will notify you if a solution is available.
UI[10]=Close
Sec[0].Key=BCCode
Sec[0].Value=a
Sec[1].Key=BCP1
Sec[1].Value=0000000000000000
Sec[2].Key=BCP2
Sec[2].Value=0000000000000002
Sec[3].Key=BCP3
Sec[3].Value=0000000000000000
Sec[4].Key=BCP4
Sec[4].Value=FFFFF80002C0F477
Sec[5].Key=OS Version
Sec[5].Value=6_1_7600
Sec[6].Key=Service Pack
Sec[6].Value=0_0
Sec[7].Key=Product
Sec[7].Value=256_1
State[0].Key=Transport.DoneStage1
State[0].Value=1
State[1].Key=CA
State[1].Value=1
State[2].Key=BLOB
State[2].Value=CHKSUM=A105A951AD644322D5573A356A4DB97E;BID=OCATAG;ID=83553209-241b-4e71-8c41-2605f89e7d9c;SUB=12//4//2009 12:45:43 PM
File[0].CabName=120409-17487-01.dmp
File[0].Path=120409-17487-01.dmp
File[0].Flags=851970
File[0].Type=2
File[0].Original.Path=C:\Windows\Minidump\120409-17487-01.dmp
File[1].CabName=sysdata.xml
File[1].Path=WER-48890-0.sysdata.xml
File[1].Flags=851970
File[1].Type=5
File[1].Original.Path=C:\Users\Betino\AppData\Local\Temp\WER-48890-0.sysdata.xml
File[2].CabName=WERInternalMetadata.xml
File[2].Path=WER3706.tmp.WERInternalMetadata.xml
File[2].Flags=589827
File[2].Type=5
File[2].Original.Path=C:\Users\Betino\AppData\Local\Temp\WER3706.tmp.WERInternalMetadata.xml
File[3].CabName=Report.cab
File[3].Path=Report.cab
File[3].Flags=196608
File[3].Type=7
File[3].Original.Path=Report.cab
FriendlyEventName=Shut down unexpectedly
ConsentKey=BlueScreen
AppName=Windows
AppPath=C:\Windows\System32\WerFault.exe
Hi and welcome.

I took a look at the dmp and found a couple of things. First several old drivers dating back to 2006. they need to be updated.

the crash was probably caused by
netw5v64.sys That is part of your wifi driver and that oc course needs to be updated.

I would


Update the drivers

run a system file check to verify and repair system files( may need to be run more that once) to run type cmd in search>right click and run as admin

sfc /scannow

Let us know the results


Hope this helps


Ken J+


I would also dl and run memtestx86 for several hours.


mdmxsdk.sys fffff880`039c6000 fffff880`039ca280 0x00004280 0x449716be 6/19/2006 4:27:26 PM
secdrv.SYS fffff880`04711000 fffff880`0471c000 0x0000b000 0x4508052e 9/13/2006 8:18:38 AM
xaudio64.sys fffff880`04771000 fffff880`04779000 0x00008000 0x456cd810 11/28/2006 7:45:04 PM
SFEP.sys fffff880`04fdc000 fffff880`04fdec80 0x00002c80 0x46b2beb9 8/3/2007 12:35:53 AM
rimssn64.sys fffff880`04f41000 fffff880`04f5f000 0x0001e000 0x48bcfe38 9/2/2008 3:50:00 AM
risdsn64.sys fffff880`04f29000 fffff880`04f41000 0x00018000 0x48d76b3b 9/22/2008 4:54:03 AM
Apfiltr.sys fffff880`04f97000 fffff880`04fcd000 0x00036000 0x4908f4f1 10/29/2008 6:42:41 PM





Code:
Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\Users\K\Desktop\120409-17487-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*d:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is: 
Windows 7 Kernel Version 7600 MP (2 procs) Free x64
Product: WinNt, suite: TerminalServer SingleUs[B]erTS
Built by: 7600.16385.amd64fre.win7_rtm.090713-1255[/B]
Machine Name:
Kernel base = 0xfffff800`02c56000 PsLoadedModuleList = 0xfffff800`02e93e50
Debug session time: Fri Dec  4 15:43:25.116 2009 (GMT-5)
System Uptime: 0 days 0:13:44.911
Loading Kernel Symbols
...............................................................
................................................................
......................................
Loading User Symbols
Loading unloaded module list
.....
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck A, {0, 2, 0, fffff80002c0f477}

[B]Unable to load image \SystemRoot\system32\DRIVERS\netw5v64.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for netw5v64.sys
*** ERROR: Module load completed but symbols could not be loaded for netw5v64.sys
Probably caused by : netw5v64.sys ( netw5v64+b4eb )
[/B]
Followup: MachineOwner
---------

1: kd> !analyze -v
*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

[B]IRQL_NOT_LESS_OR_EQUAL (a)
An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If a kernel debugger is available get the stack backtrace.[/B]
Arguments:
Arg1: 0000000000000000, memory referenced
Arg2: 0000000000000002, IRQL
Arg3: 0000000000000000, bitfield :
    bit 0 : value 0 = read operation, 1 = write operation
    bit 3 : value 0 = not an execute operation, 1 = execute operation (only on chips which support this level of status)
Arg4: fffff80002c0f477, address which referenced memory

Debugging Details:
------------------


READ_ADDRESS: GetPointerFromAddress: unable to read from fffff80002efe0e0
 0000000000000000 

CURRENT_IRQL:  2

FAULTING_IP: 
hal!HalpDmaNextContiguousPiece+103
fffff800`02c0f477 448b08          mov     r9d,dword ptr [rax]

CUSTOMER_CRASH_COUNT:  1

DEFAULT_BUCKET_ID:  VISTA_DRIVER_FAULT

BUGCHECK_STR:  0xA

PROCESS_NAME:  System

TRAP_FRAME:  fffff88009dcbb90 -- (.trap 0xfffff88009dcbb90)
NOTE: The trap frame does not contain all registers.
Some register values may be zeroed or incorrect.
rax=0000000000000000 rbx=0000000000000000 rcx=0000000000000e24
rdx=0000000000000e24 rsi=0000000000000000 rdi=0000000000000000
rip=fffff80002c0f477 rsp=fffff88009dcbd28 rbp=0000000000000000
 r8=0000000000000004  r9=0000000000000000 r10=00000000000fffff
r11=fffffa8005e2dcf0 r12=0000000000000000 r13=0000000000000000
r14=0000000000000000 r15=0000000000000000
iopl=0         nv up ei pl nz na pe nc
hal!HalpDmaNextContiguousPiece+0x103:
fffff800`02c0f477 448b08          mov     r9d,dword ptr [rax] ds:0001:00000000`00000000=????????
Resetting default scope

LAST_CONTROL_TRANSFER:  from fffff80002cc7469 to fffff80002cc7f00

STACK_TEXT:  
fffff880`09dcba48 fffff800`02cc7469 : 00000000`0000000a 00000000`00000000 00000000`00000002 00000000`00000000 : nt!KeBugCheckEx
fffff880`09dcba50 fffff800`02cc60e0 : fffffa80`068884f0 fffffa80`045136e0 fffffa80`04c979b0 fffff880`048d7802 : nt!KiBugCheckDispatch+0x69
fffff880`09dcbb90 fffff800`02c0f477 : fffffa80`04b7f5b0 fffffa80`04e5f1dc fffff800`02c0f524 fffffa80`045136e0 : nt!KiPageFault+0x260
fffff880`09dcbd28 fffff800`02c0f524 : fffffa80`045136e0 fffffa80`05e2dcf0 fffffa80`05e2db30 00000000`00000000 : hal!HalpDmaNextContiguousPiece+0x103
fffff880`09dcbd40 fffff800`02c124fb : fffffa80`045136e0 fffffa80`05e2dcf0 fffffa80`04b7f5b0 fffffa80`046c6fd8 : hal!HalpDmaMapScatterTransfer+0x34
fffff880`09dcbd90 fffff800`02c12472 : fffffa80`045136e0 fffffa80`045136d8 00000000`00000004 00000000`00000000 : hal!HalpMapTransfer+0x7b
fffff880`09dcbe20 fffff800`02c1194f : 00000000`00000000 fffff800`02c0efb9 00000000`00000000 00000000`00000003 : hal!IoMapTransfer+0x8e
fffff880`09dcbe60 fffff800`02c11afd : fffffa80`05777050 fffffa80`05e2dcf0 00000000`00000001 fffffa80`00000000 : hal!HalpAllocateAdapterCallback+0xc7
fffff880`09dcbf00 fffff800`02c12156 : fffffa80`05e2dcf0 00000000`00000500 fffffa80`05e2dc00 00000000`00000003 : hal!IoFreeAdapterChannel+0x109
fffff880`09dcbf30 fffff800`02c1171f : fffffa80`04778b90 00000000`000005fc fffffa80`05e2dcf0 fffffa80`04497380 : hal!HalAllocateAdapterChannel+0x11a
fffff880`09dcbf70 fffff880`016187c0 : fffffa80`074cd300 fffffa80`05e2d960 fffffa80`000000a0 fffff880`04aaf550 : hal!HalBuildScatterGatherList+0x2f3
fffff880`09dcbfe0 fffff880`0486a4eb : fffffa80`057771a0 00000000`00000000 fffffa80`04ea5a20 fffff880`04a100a0 : ndis!NdisMAllocateNetBufferSGList+0x110
fffff880`09dcc080 fffffa80`057771a0 : 00000000`00000000 fffffa80`04ea5a20 fffff880`04a100a0 00000000`00000000 : netw5v64+0xb4eb
fffff880`09dcc088 00000000`00000000 : fffffa80`04ea5a20 fffff880`04a100a0 00000000`00000000 000005fc`00000100 : 0xfffffa80`057771a0


STACK_COMMAND:  kb

FOLLOWUP_IP: 
netw5v64+b4eb
fffff880`0486a4eb ??              ???

SYMBOL_STACK_INDEX:  c

SYMBOL_NAME:  netw5v64+b4eb

FOLLOWUP_NAME:  MachineOwner

[I][B]MODULE_NAME: netw5v64

IMAGE_NAME:  netw5v64.sys

DEBUG_FLR_IMAGE_TIMESTAMP:  4aafec38

FAILURE_BUCKET_ID:  X64_0xA_netw5v64+b4eb

BUCKET_ID:  X64_0xA_netw5v64+b4eb[/B][/I]

Followup: MachineOwner
---------
 

My Computer

Computer Manufacturer/Model Number
HP Pavillion dv-7 1005 Tx
OS
Win 8 Release candidate 8400
CPU
[email protected]
Memory
4 gigs
Graphics Card(s)
Nvidia 9600M
Sound Card
HD built-in
Monitor(s) Displays
17" Wxga
Screen Resolution
1440x900
Cooling
none
Internet Speed
45Mb down 5Mb up
I did as you said:

First, I ran "sfc /scannow" and the output was: "Windows Resource Protection did not find any integrity violation." thus being no problem here.
Then I ran a memcheck with my Kubuntu 8.10 CD booting from the CD. I did not wait to finish since I was out of time. At 67% the screen looked as in the attached file below. Is it necessary to finish the tests?

I don't know what to say about drivers, since I have the most recent one of my WiFi card. I also have noticed that there are some old one (in device manager) since 2006, but those drivers are Windows's one, I didn't install them, so they came with Windows 7. I used the "update driver" section, but it said the it was up to date.

I am not sure how to interpret the results from the memtest, but there seems to be some errors. What can you tell me about that? Are they fatal one? Or, will I be able to use my laptop with those DIMMs (there are 2x2GB). Will the problems become more numerous by the time?

Thank you again for your help!
 

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
If you make an error in your checkbook of 1¢ - it's not a real big problem.
If you make an error in your checkbook of $1,000,000.00 - it is a big problem.
Both involve only 1 character - but the location of that 1 character is critical.

It's my opinion that the same thing holds true for memory errors.
That being said, I notice that you're only on the 7th test of the first pass and the system has already counted 288 errors.

I usually recommend letting the test run for at least 3 passes (but overnight is better). But in this case things just aren't going to get any better for you - so it's time to stop the test.

This could be a stable error (which you may be able to put up with), or it may be a degrading condition where the errors get worse over time.

You can try testing the sticks individually. Start with Step 7 of this link: Memory Diagnostics If one of the sticks is OK, then you can run with just that until you get the money for another stick.
 

My Computer

Computer Manufacturer/Model Number
Home built (x64), Lenovo x61s Tablet, Samsung Netbook
OS
Win7 x64 + x86
CPU
Intel i7 920, other Intel chips, and the Atom in the netbook
Motherboard
Asus P6T Deluxe
Memory
12 gB; 4 gB Lenovo; 1 gB Samsung netbook
Graphics Card(s)
ATI 4870
Sound Card
Yes, I have one of these
Monitor(s) Displays
32" Sharp Aquos TV
Screen Resolution
800x600 - I have vision issues
Hard Drives
4 - 150 gB Velociraptors in RAID 5
Promise controller
PSU
1000 watt (can't recall the brand)
Case
Antec 300
Cooling
Big honking cooler that was rated highly at Toms Hardware
Keyboard
Microsoft Natural
Mouse
Logitech Trackman
Internet Speed
Cable
Other Info
GeekSquad UPS
CyberPower UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
Hi there,

I did a memcheck test for both the DIMM. It seems that only one of them rises up errors. For that with errors I didn't wait to finish, but for the good one I waited for the test to finish and there was no error. So, one of the two sticks has some errors.
Could this (surely) be the cause for the problem I've posted here in the first post (the BSOD generation cause)? Or maybe there could be another problem with the WiFi (the card or the driver)?

Thank you again!
 

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
Yes, it could be the cause of the problem.
Yes, it could also be a problem with the wifi card.

Most times we'll see only 1 problem on a system - but occasionally we'll see multiple problems.
You can't tell which it is until you solve the first problem (the memory in this case).

So leave the stick with errors out and continue to run the system and see if you get more errors.
If not, then it's fixed. If you do get errors, post back and we'll work on them.
 

My Computer

Computer Manufacturer/Model Number
Home built (x64), Lenovo x61s Tablet, Samsung Netbook
OS
Win7 x64 + x86
CPU
Intel i7 920, other Intel chips, and the Atom in the netbook
Motherboard
Asus P6T Deluxe
Memory
12 gB; 4 gB Lenovo; 1 gB Samsung netbook
Graphics Card(s)
ATI 4870
Sound Card
Yes, I have one of these
Monitor(s) Displays
32" Sharp Aquos TV
Screen Resolution
800x600 - I have vision issues
Hard Drives
4 - 150 gB Velociraptors in RAID 5
Promise controller
PSU
1000 watt (can't recall the brand)
Case
Antec 300
Cooling
Big honking cooler that was rated highly at Toms Hardware
Keyboard
Microsoft Natural
Mouse
Logitech Trackman
Internet Speed
Cable
Other Info
GeekSquad UPS
CyberPower UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
Yes, it could be the cause of the problem.
Yes, it could also be a problem with the wifi card.

Most times we'll see only 1 problem on a system - but occasionally we'll see multiple problems.
You can't tell which it is until you solve the first problem (the memory in this case).

So leave the stick with errors out and continue to run the system and see if you get more errors.
If not, then it's fixed. If you do get errors, post back and we'll work on them.

Hi,

I use the system for 2 days with no uTorrent and there was no error. So, even with the bad DIMM into the laptop, there was no error. Probably, the error raise up only in this condition (bad memory + torrents download). For me, it's not a very big deal. I can survive like that.

I was looking for an identical memory DIMM like the two I have in my laptop and I was not able to find one in my country. Is it absolute necessary that both the sticks to be identical? I don't know if my laptop (motherboard) supports dual-channel, since I don't know what motherboard do I have. And how can I know if my motherboard supports 8GB RAM memory? What do you think?

Again, thank you!
 
Last edited:

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
No, it's not necessary - but there's no guarantee that it'll work then.
According to this, the limit on your system is 4gB: Computer memory upgrades for Sony VAIO VGN-FW290 Series Laptop/Notebook from Crucial.com

It says it does support dual-channel memory - so I'd suggest getting a part that's as close to the original as possible (DDR2 PC2-6400 for example). The system doesn't have to use dual-channel - but it does help to speed things up.
 

My Computer

Computer Manufacturer/Model Number
Home built (x64), Lenovo x61s Tablet, Samsung Netbook
OS
Win7 x64 + x86
CPU
Intel i7 920, other Intel chips, and the Atom in the netbook
Motherboard
Asus P6T Deluxe
Memory
12 gB; 4 gB Lenovo; 1 gB Samsung netbook
Graphics Card(s)
ATI 4870
Sound Card
Yes, I have one of these
Monitor(s) Displays
32" Sharp Aquos TV
Screen Resolution
800x600 - I have vision issues
Hard Drives
4 - 150 gB Velociraptors in RAID 5
Promise controller
PSU
1000 watt (can't recall the brand)
Case
Antec 300
Cooling
Big honking cooler that was rated highly at Toms Hardware
Keyboard
Microsoft Natural
Mouse
Logitech Trackman
Internet Speed
Cable
Other Info
GeekSquad UPS
CyberPower UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
Defiantly something with the hardware. Go to Device Manager and look for an entry with a yellow flag.
 

My Computer

Computer Manufacturer/Model Number
Cheap $399.00 E-Machine
OS
Windows 7 Pro & Vista Home Premium
CPU
Athlon 64 3800+ (Orleans) 2.40GHz
Motherboard
Winfast
Memory
2GB DDR2 RAM DIMM
Graphics Card(s)
NVIDIA GeForce 8500 GT 512 MB memory HDMI out
Sound Card
creative X-Fi Exteme 7..1 channel
Monitor(s) Displays
Acer V223W 22" widescreen DVI
Screen Resolution
1680x1050
Hard Drives
WDC WD5 500GB
WDC WD25 250GB
PSU
OCZ 550 watt
Case
Gateway
Cooling
2 fans
Keyboard
Dell
Mouse
Sony Vaio
Internet Speed
18MB/s down - .72MB /s up
No, it's not necessary - but there's no guarantee that it'll work then.
According to this, the limit on your system is 4gB: Computer memory upgrades for Sony VAIO VGN-FW290 Series Laptop/Notebook from Crucial.com

It says it does support dual-channel memory - so I'd suggest getting a part that's as close to the original as possible (DDR2 PC2-6400 for example). The system doesn't have to use dual-channel - but it does help to speed things up.

In order to be enabled the dual-channel mode, is it absolutely necessary that both the DIMMs to be identical (same brand, same model)? Can I mix two different brand DIMMs, but with the same configuration - same type, same speed, same latency?


Defiantly something with the hardware. Go to Device Manager and look for an entry with a yellow flag.

There's nothing yellow.
 

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
There's nothing yellow

How bout red
 

My Computer

Computer Manufacturer/Model Number
Cheap $399.00 E-Machine
OS
Windows 7 Pro & Vista Home Premium
CPU
Athlon 64 3800+ (Orleans) 2.40GHz
Motherboard
Winfast
Memory
2GB DDR2 RAM DIMM
Graphics Card(s)
NVIDIA GeForce 8500 GT 512 MB memory HDMI out
Sound Card
creative X-Fi Exteme 7..1 channel
Monitor(s) Displays
Acer V223W 22" widescreen DVI
Screen Resolution
1680x1050
Hard Drives
WDC WD5 500GB
WDC WD25 250GB
PSU
OCZ 550 watt
Case
Gateway
Cooling
2 fans
Keyboard
Dell
Mouse
Sony Vaio
Internet Speed
18MB/s down - .72MB /s up

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
One new day, full load mode, except uTorrent and no error. So, it's uTorrent's fault. I can survive like that. :D

Thank you for all the replies.
 

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
Good trouble-shooting
 

My Computer

Computer Manufacturer/Model Number
Cheap $399.00 E-Machine
OS
Windows 7 Pro & Vista Home Premium
CPU
Athlon 64 3800+ (Orleans) 2.40GHz
Motherboard
Winfast
Memory
2GB DDR2 RAM DIMM
Graphics Card(s)
NVIDIA GeForce 8500 GT 512 MB memory HDMI out
Sound Card
creative X-Fi Exteme 7..1 channel
Monitor(s) Displays
Acer V223W 22" widescreen DVI
Screen Resolution
1680x1050
Hard Drives
WDC WD5 500GB
WDC WD25 250GB
PSU
OCZ 550 watt
Case
Gateway
Cooling
2 fans
Keyboard
Dell
Mouse
Sony Vaio
Internet Speed
18MB/s down - .72MB /s up
No, they do not have to be 100% identical. But if the dual-channel doesn't work, that's the first thing that will be blamed. Not all chips work 100% with other chips.

If it doesn't work only 2 things will happen - the system will revert to single channel mode (you may not even notice this), or the system won't work at all (won't boot). If you identify a problem, shut down and remove power/battery - then pull out the new chip. Then try booting again without the extra chip.
 

My Computer

Computer Manufacturer/Model Number
Home built (x64), Lenovo x61s Tablet, Samsung Netbook
OS
Win7 x64 + x86
CPU
Intel i7 920, other Intel chips, and the Atom in the netbook
Motherboard
Asus P6T Deluxe
Memory
12 gB; 4 gB Lenovo; 1 gB Samsung netbook
Graphics Card(s)
ATI 4870
Sound Card
Yes, I have one of these
Monitor(s) Displays
32" Sharp Aquos TV
Screen Resolution
800x600 - I have vision issues
Hard Drives
4 - 150 gB Velociraptors in RAID 5
Promise controller
PSU
1000 watt (can't recall the brand)
Case
Antec 300
Cooling
Big honking cooler that was rated highly at Toms Hardware
Keyboard
Microsoft Natural
Mouse
Logitech Trackman
Internet Speed
Cable
Other Info
GeekSquad UPS
CyberPower UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
No, they do not have to be 100% identical. But if the dual-channel doesn't work, that's the first thing that will be blamed. Not all chips work 100% with other chips.

If it doesn't work only 2 things will happen - the system will revert to single channel mode (you may not even notice this), or the system won't work at all (won't boot). If you identify a problem, shut down and remove power/battery - then pull out the new chip. Then try booting again without the extra chip.

What is the difference between single-channel and dual-channel? I mean, how much will I see the difference if dual-channel won't work? Can you give a percentage?

Thank you!
 

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
Nope, I can't - I've never done any research on it.
I do switch RAM for customers at work, but can't tell if there's a significant difference because I've never seen their systems before.
I do use different brands at work, and if it doesn't work I just switch to a different brand.

I'd suggest searching Google for the differences between single channel and dual channel - someone's got to have done a comparison.
 

My Computer

Computer Manufacturer/Model Number
Home built (x64), Lenovo x61s Tablet, Samsung Netbook
OS
Win7 x64 + x86
CPU
Intel i7 920, other Intel chips, and the Atom in the netbook
Motherboard
Asus P6T Deluxe
Memory
12 gB; 4 gB Lenovo; 1 gB Samsung netbook
Graphics Card(s)
ATI 4870
Sound Card
Yes, I have one of these
Monitor(s) Displays
32" Sharp Aquos TV
Screen Resolution
800x600 - I have vision issues
Hard Drives
4 - 150 gB Velociraptors in RAID 5
Promise controller
PSU
1000 watt (can't recall the brand)
Case
Antec 300
Cooling
Big honking cooler that was rated highly at Toms Hardware
Keyboard
Microsoft Natural
Mouse
Logitech Trackman
Internet Speed
Cable
Other Info
GeekSquad UPS
CyberPower UPS
DLink DNS-323 NAS (2 tB)
Netgear wireless router as an access point
Netgear wired router FSV-318
Home network consists of
4 desktop computers (2 Vista, 2 Win7)
1 netbook (Win7)
4 laptop computers (XP, 2-Vista, Win7)
Wii and XBox 360
My guess is that there might be a significant difference. The reason is because my motherboard is only single channel DDR and I have dual channel (which operates only in single because of motherboard) OCZ Gold DDR, overclocked. See specs.

The highest I can get for winsat mem is 3000 MB/sec. Notice my timings, too.
 

My Computer

Computer Manufacturer/Model Number
self built
OS
7600.20510 x86
CPU
P4 550 3.4 GHz HT running at 3.5 GHz
Motherboard
MSI PM8M3-V (MS-7211 v1.x) Micro-ATX mainboard
Memory
OCZ 2 GB(2x1GB) DDR400mHz running @ 414 mHz
Graphics Card(s)
HIS Radeon HD 3850 IceQ 3 Turbo HDMI Dual DL-DVI AGP
Sound Card
MOTU Traveler firewire studio interface 192 kHz 24 bit
Monitor(s) Displays
22" widescreen Acer X223W LCD, 17" Compaq P75 CRT
Screen Resolution
1680x1050 and 1280x1024
Hard Drives
SATA I x2 WD, 400 GB and 120 GB, SATA 2 WD Caviar Black 1 TB
PSU
350W generic
Case
Cybertronpc, it glows blue
Cooling
stock cpu fan, Ice-Q 3 gpu and system, many case fans
Keyboard
Logitch Classical Keyboard 200
Mouse
Logitech Mediaplay cordless
Internet Speed
1792/448 kbits/sec
Other Info
SATA II PCI fake RAID adapter, 1 GB Readyboost, original ATI Remote Wonder (even works with WMC perfectly), Logitech Rumblepad 2 game controller x2
One new question? Since my processor's FSB (T9600) is 1066MHz, can I use DDR3-1066 MHz memory? I know it does like exactly like DDR2, but I am not sure that it'll work.

Thank you!
 

My Computer

Computer Manufacturer/Model Number
Sony VAIO VGN-FW290J
OS
Windows 7 Professional x64
CPU
Intel T9600
Memory
4GB DDR2-800
Graphics Card(s)
ATI 3650
Sound Card
Onboard - Realtek
Monitor(s) Displays
1920x1080
Hard Drives
320@7200RPM
No. It is extremely rare that motherboards can accept both standards. There's maybe one or two of them. If you have DDR2 now, you're pretty much guaranteed to only be able to use DDR2.
 

My Computer

Computer Manufacturer/Model Number
self built
OS
7600.20510 x86
CPU
P4 550 3.4 GHz HT running at 3.5 GHz
Motherboard
MSI PM8M3-V (MS-7211 v1.x) Micro-ATX mainboard
Memory
OCZ 2 GB(2x1GB) DDR400mHz running @ 414 mHz
Graphics Card(s)
HIS Radeon HD 3850 IceQ 3 Turbo HDMI Dual DL-DVI AGP
Sound Card
MOTU Traveler firewire studio interface 192 kHz 24 bit
Monitor(s) Displays
22" widescreen Acer X223W LCD, 17" Compaq P75 CRT
Screen Resolution
1680x1050 and 1280x1024
Hard Drives
SATA I x2 WD, 400 GB and 120 GB, SATA 2 WD Caviar Black 1 TB
PSU
350W generic
Case
Cybertronpc, it glows blue
Cooling
stock cpu fan, Ice-Q 3 gpu and system, many case fans
Keyboard
Logitch Classical Keyboard 200
Mouse
Logitech Mediaplay cordless
Internet Speed
1792/448 kbits/sec
Other Info
SATA II PCI fake RAID adapter, 1 GB Readyboost, original ATI Remote Wonder (even works with WMC perfectly), Logitech Rumblepad 2 game controller x2
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