Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Hybrid memory configuration. Unable to boot while using different RAMs

29 Jun 2013   #1
youllbelost

Dual Booting Windows 7 64-Bit Ultimate Edition and Fedora 16.
 
 
Hybrid memory configuration. Unable to boot while using different RAMs

Hello SF,

Straight to the point, I had two G.Skill 2Gb RAM's(1333Mhz and 9-9-9-24 [F3-10666CL9D-4GBRL](4gb because its a 2+2 module), of which one got bad. So consequently I bought a new single 4gb G.Skill RAM. (1600Mhz and 9-9-9-24)

The problem arrives when I try to use both the memories together, i.e., the new 4gb one and the single 2Gb good one left from the 2+2. I am able to run them separately, but when I put them together the system wont boot.

Firstly, can I use them together?
Further, I got a notion from the web that it will in fact lower the performance.

Thanks,
YBL.


My System SpecsSystem Spec
.
29 Jun 2013   #2
madcratebuilder

Win8/8.1,Win7-U64, Vista U64, uncounted Linux distor's
 
 

I've never been successful using two different styles of RAM sticks. I have mixed brands but they needed to be the same size and rated speed. Just run the 4gb stick, maybe sell the 2gb toward a second 4gb.
My System SpecsSystem Spec
29 Jun 2013   #3
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

I agree with madcratebuilder. Mixing and matching RAM is a gamble - period.

Check the voltage rating on both RAM sticks. These must match also.

The motherboard has a RAM voltage requirement also. You can assume that the RAM that came with the board is the correct voltage if you do not have a motherboard manual.
My System SpecsSystem Spec
.

29 Jun 2013   #4
bobafetthotmail

Win 7 Pro 64-bit 7601
 
 

the two RAMs have wildly different specs. It's theoretically possible to use them both at the same time, but you will have to lose a lot of time trying to overvolt either ram a bit and or adjusting other settings in the RAM panel of the bios.

And in the end you still get that the newer and faster 4 GB RAM you bought will be running at the speed of the 2 GB one, which is less.

Unless you really need those two GB i'd recommend to sell them as used or to keep them in a box (not installed but ready to be installed) as a failsafe in case your new RAM malfunctions.
My System SpecsSystem Spec
05 Jul 2013   #5
youllbelost

Dual Booting Windows 7 64-Bit Ultimate Edition and Fedora 16.
 
 

Quote   Quote: Originally Posted by madcratebuilder View Post
I've never been successful using two different styles of RAM sticks. I have mixed brands but they needed to be the same size and rated speed. Just run the 4gb stick, maybe sell the 2gb toward a second 4gb.

I guess then that I just wasted my whole day trying different frequencies and slots and clock timings. I made a table with
4C2(4 out of 2 slots) x 4 (OC switch) x 2(upping the 2GB or lowering the 4Gb in terms of freq.) x 2! x 1(both RAM's are 1.5) = 96 cases. ( Can some cases be omitted? I just took the exhaustive approach ^_^)
Out of which I tried 30 something all of them unstable. If I get aroung to testing the rest and get success I would post it here.

After I am running with the 4Gb stick. I dont think I would be able to sell it. I might keep that as Plan B if my 4gb fails.

YBL.
My System SpecsSystem Spec
05 Jul 2013   #6
youllbelost

Dual Booting Windows 7 64-Bit Ultimate Edition and Fedora 16.
 
 

Quote   Quote: Originally Posted by TVeblen View Post
The motherboard has a RAM voltage requirement also.
I assembled the desktop myself, so there was no RAM that came with the MB
I checked the specs for the slots and it was ok for 1.5 volts and the freq, so I just installed them tried and they worked.

About the RAM voltage requirements, I guess its the voltage supported by the MB? Can you elaborate? bit confused here.

Thanks,
YBL.
My System SpecsSystem Spec
05 Jul 2013   #7
youllbelost

Dual Booting Windows 7 64-Bit Ultimate Edition and Fedora 16.
 
 

Quote   Quote: Originally Posted by bobafetthotmail View Post
the two RAMs have wildly different specs. It's theoretically possible to use them both at the same time, but you will have to lose a lot of time trying to overvolt either ram a bit and or adjusting other settings in the RAM panel of the bios.

And in the end you still get that the newer and faster 4 GB RAM you bought will be running at the speed of the 2 GB one, which is less.

Unless you really need those two GB i'd recommend to sell them as used or to keep them in a box (not installed but ready to be installed) as a failsafe in case your new RAM malfunctions.

'think that sums it up. But I just wanted to make it work once, just because it can be done.

Thanks,
YBL.
My System SpecsSystem Spec
05 Jul 2013   #8
TVeblen

Microsoft Community Contributor Award Recipient

Windows 7 64 Bit Home Premium SP1
 
 

Quote   Quote: Originally Posted by youllbelost View Post
Quote   Quote: Originally Posted by TVeblen View Post
The motherboard has a RAM voltage requirement also.
I assembled the desktop myself, so there was no RAM that came with the MB
I checked the specs for the slots and it was ok for 1.5 volts and the freq, so I just installed them tried and they worked.

About the RAM voltage requirements, I guess its the voltage supported by the MB? Can you elaborate? bit confused here.

Thanks,
YBL.
Yes, the motherboard and the CPU have voltage requirements for the RAM module(s). You can find these requirements in the motherboard manual, or on the motherboard website specs.
In general, RAM running at a lower voltage than the requirement will run fine, but trying to run RAM that needs more voltage than the motherboard allows will result in problems.

Lower voltage RAM runs cooler and more efficiently than higher voltage RAM also.
My System SpecsSystem Spec
Reply

 Hybrid memory configuration. Unable to boot while using different RAMs




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
cd/dvd drive error AVerMedia A336 Minicard Hybrid DVB-T unable to inst
Hi, I am hope someone can help me here. My DVD / CD drive on my Packard Bell computer is suddenly not working. When you go into the device manager I see the error, under other devices. "Windows was unable to install your AVerMedia A336 Minicard Hybrid DVB-T" I have tried many time to...
General Discussion
Extremely slow boot after Hybrid Sleep
Hi, I've got a very strange problem. I use Windows 7 Pro x64 in my Car PC. Hybrid Sleep is enabled, because my CarPC-PSU only keeps up the 5V rail for 18 Hours. After that the power is shut down. When I wake the PC from standby (within the 18 hours), everything works fine. Windows responds...
Performance & Maintenance
Unable to access System Recovery in Boot Menu, and unable to boot disk
Win 7x64 Acer-5251 Everything seems to be working fine, but as the title suggests, when i tap F8 the Advanced boot options DO appear, but when i engage "Repair Windows" it just goes into a normal boot. Ive tried booting from my installation CD that i've purchased from Acer, but does nothing....
Installation & Setup
Micron’s 320GB/sec Hybrid Memory Cube comes to market in 2013...
Micron’s 320GB/sec Hybrid Memory Cube comes to market in 2013, threatens to finally kill DDR SDRAM Source A Guy
News
Hybrid Boot in Windows 7 - is it possible?
Hi, and I'm back after several years of hibernation (I know, bad pun. ehehehe) Well, we all know how nifty Hybrid Boot is, logging off and hibernating the system files and all for a quick boot. Now here is the question, is it possible to add Hybrid Boot to Windows 7? Of course I did some...
Customization
Windows 7 doesn't boot and bluescreens after resizing hybrid GPT/MBR
Note: I am unable to provide any of the bluescreen information files, as I currently only have access to the recovery console. I'll be happy to run any applications that can be run from there or send any log files already present on my computer. I run Windows 7 Enterprise Edition 64 bit (company...
BSOD Help and Support


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 22:50.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App