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Windows 7: Is my RAM slow

13 Jun 2011   #1
Vatec

Windows 7 Ultimate 64-bit SP1
 
 
Is my RAM slow

I've got 3x4gb and 1x2gb of RAM and I was wondering if it's slow

DDR3-1333 498MHz 9-9-9-24


My System SpecsSystem Spec
.
13 Jun 2011   #2
Fumz

7 Ultimate x64
 
 

Your RAM isn't operating at the correct frequency. The 2400 spec is 1066MHz or 1333MHz and right now you're only at 996MHz. Intel® Core

Btw, you're also not overclocked. 3.4GHz is the default speed with Turbo Boost... which the cores will do based on load. You can only overclock the K model cpus. However, you can get the RAM running right.

My guess is that one of those sticks is unlike the others, and so the board is reading the each stick's SPD chip and running at the lowest frequency, which is what happens when you mix and match RAM: for stability, it will default to the slowest speed.

What led you to such an odd configuration, 3x4GB + 1x2GB?
My System SpecsSystem Spec
13 Jun 2011   #3
Vatec

Windows 7 Ultimate 64-bit SP1
 
 

@Paragraph1 My RAM is DDR-1333 not DDR-2400
Quote:
[edit]Latencies
While the typical latencies for a JEDEC DDR2 device were 5-5-5-15, some standard latencies for JEDEC DDR3 devices include 7-7-7-20 for DDR3-1066 and 9-9-9-24 for DDR3-1333.
DDR3 latencies are numerically higher because the I/O bus clock cycles by which they are measured are shorter; the actual time interval is similar to DDR2 latencies (around 10*ns). There is some improvement because DDR3 generally uses more recent manufacturing processes, but this is not directly caused by the change to DDR3.
As with earlier memory generations, faster DDR3 memory became available after the release of the initial versions. DDR3-2000 memory with 9-9-9-28 latency (9*ns) was available in time to coincide with the Intel Core i7 release.[8] CAS latency of 9 at 1000*MHz (DDR3-2000) is 9*ns, while CAS latency of 7 at 667*MHz (DDR3-1333) is 10.5*ns.
(CAS*/*Frequency (MHz))*×*1000*=*X*ns
Example:
(7*/*667)*×*1000*=*10.4948*ns
@Paragraph2 That's not what my BIOS says, and it says it's UNLOCKED and LIMITED

@Paragraph3 My 2GB seems to have lower timing and my 4GBs have higher

@Paragraph4 When I first built the rig I only used 2GB
My System SpecsSystem Spec
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13 Jun 2011   #4
Fumz

7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Vatec View Post
@Paragraph1 My RAM is DDR-1333 not DDR-2400
@Paragraph2 That's not what my BIOS says, and it says it's UNLOCKED and LIMITED

@Paragraph3 My 2GB seems to have lower timing and my 4GBs have higher

@Paragraph4 When I first built the rig I only used 2GB
Quote   Quote: Originally Posted by Vatec View Post
DDR3-1333 498MHz 9-9-9-24
Nobody said your RAM was DDR 2400. Your DDR 1333, according to you, is only running at 996MHz. 498*2=996.

Let's not worry about timings, right now we're talking about frequency. They're 2 entirely different things. Go download cpu-z, unzip it, then run it. It will give you all the information you need about your chipset. cpu speed, ram speed, timings, etc etc.

CPUID - System & hardware benchmark, monitoring, reporting
My System SpecsSystem Spec
13 Jun 2011   #5
Vatec

Windows 7 Ultimate 64-bit SP1
 
 

That tells me the same thing
My System SpecsSystem Spec
13 Jun 2011   #6
Fumz

7 Ultimate x64
 
 

Usually, this is the part where you tell us what you want.

Are you happy with your system? Do you want to make it faster? Do you like cheeseburgers? I can guess all day long... but it isn't going to get us anywhere.
My System SpecsSystem Spec
13 Jun 2011   #7
Vatec

Windows 7 Ultimate 64-bit SP1
 
 

Actually never mind it was running at 1333mhz
My System SpecsSystem Spec
Reply

 Is my RAM slow




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