DDR2 8500 showing up as 6400

msaunders · 27 Feb 2008 at 20:18

Hi

Just was lookin in CPU-Z v1.44.1 today and I noticed my Crucial Ballistix 8500 RAM is showing as PC2-6400 (400MHz) . Is that because I have the RAM set to 800MHz in the BIOS or is it telling me my ram IS PC2-6400 ?

Also FSB

RAM is 5:6

Is that bad or good ? What is optimal ?

Cheers
M

Cob · 27 Feb 2008 at 20:20

You'll need to set it to PC8500 speeds in your BIOS.

Also set the RAM voltage (vdimm) to 2.2v for that memory.

msaunders · 27 Feb 2008 at 21:04

Hi

Yeah I have tried too before (1066) but the board doesnt like it . System reboots and lockups . This is my second round of 4x1GB setups and both havent liked runing at full speeds. 800mhz was a compromise .......

steve258 · 27 Feb 2008 at 21:05

What motherboard are you using?

Increasing north bridge voltage a little helps a lot too with 4 sticks of RAM.

msaunders · 28 Feb 2008 at 09:59

Hi Steve,

Using a PK5 . Northbridge is running @ 1.4 volts.

mp260767 · 28 Feb 2008 at 13:31

no problem with the cu-z dispay does the same to mine and its 8500.

try upping it from 1.4 to 1.5.

MattandJet · 28 Feb 2008 at 15:37

how can u tell what your NB voltage is

Judge · 29 Feb 2008 at 11:50

I think it could be a common problem. I also ordered 2 of the pre overclocked systems in october with this same ram. I also have the exact same issue as you with both systems displaying the ram as 6400.

Just a problem with cpu-z in my opinion.

Kelt · 29 Feb 2008 at 20:03

Judge said:
I think it could be a common problem. I also ordered 2 of the pre overclocked systems in october with this same ram. I also have the exact same issue as you with both systems displaying the ram as 6400.

Just a problem with cpu-z in my opinion.

No, there was never an official JEDEC standard for DDR2 8500 memory so it never existed. 8500 ram is as CPU-Z reports, 6400 ram overclocked, and tested to run at that speed at the factory.

Davy644 · 7 Mar 2008 at 14:31

Thanks for clearing that up Keltic Daz,will my Board recognize this faster Ram,and adjust accordingly as its on auto apart from V-Core and FSB multi which i overclock with....thanks Davy
Asus P5E 2x1GB Crucial Ballistix Tracer 8500