4gb dominator 1066mhz showing as 400mhz? help please

Terrier_Jimlad

Terrier_Jimlad

Terrier_Jimlad

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I have the following:

Corsair 4GB (2x2GB) DDR2 1066MHz/PC2-8500 Dominator Memory Kit CL5(5-5-5-15)

running on an ASUS P5Q-E however in CPU-Z it only shows as 400Mhz and PC26400:

cpuzt.jpg


I understand i need to change the DRAM voltage or something, but I cant find that option within the asus BIOS ... any one know which option it is?

Thanks in advance!
 
hi mate,

the only thing i can see that makes sense is called DRAM Frequency, and it gives me these options:

Auto
DDR2-401MHz
DDR2-480MHz
DDR2-502MHz
DDR2-533MHz
DDR2-602MHz
DDR2-640MHz
DDR2-667MHz
DDR2-800MHz

It was originally auto, but I changed it to DDR2-800MHz, which gives the result in the CPU-Z screenshot in my first post
 
ok i eventually found where to change it, was called "matche it to northbridge" or something, set that to manual and it let me change the ram frequency to 533mhz ...

I accepted changes, machine rebooted ... now it wont boot ... pc powers on fine but get no pic on the monitor ... uh oh!
 
managed to clear bios and get it back to scratch ... i've tried sticking the dram voltage to 2.1v and still cpu-z shows as 400mhz ... here are the 4 options i've been playing with, but still getting no where, apologies for my newbness lol ... can anyone take a look at the options below and recommend what they should be set to:

FSB STRAP TO NORTH BRIDGE = AUTO/200/266/333/400

DRAM FREQUENCY = Auto/DDR2-401MHz/DDR2-480MHz/DDR2-502MHz/DDR2-533MHz/DDR2-602MHz/DDR2-640MHz/DDR2-667MHz/DDR2-800MHz

DRAM VOLTAGE: 2.10

NB VOLTAGE: 1.12 (was set to auto but notched it up a little)

Any recommend anyt settings to get the full potential from my ram?

Thanks again
 
If i set the FSB TO NB to 400, save and exit, go back in to BIOS i have the following 3 DRAM Frequeny:

AUTO
DDR2-400mhz
DDR2-533mhz
DDR2-560mhz

If i select 533mhz and also bump up the NB voltage a little, save and exit, my machine no longer fires up and i have to reset the whole bios to get it back on ...

What's causing that?
 
i've upgraded to BIOS to the latest version as like you, mine was 8 months old ...

Here's what i've tried:

1) left everything auto = boots to windows fine but cpu-z shows ram as 400mhz
2) left everything auto and set FSB Strap to NB to 400 MHz = boots to windows fine but cpu-z shows ram at 266.7 MHz
3) as #2 above but changed DRAM Voltage to 2.10v = windows boots fine but cpu-z shows ram at 266.7 MHz
4) as #3 above but bumped NB to 1.26v = windows boots fine but cpu-z shows ram at 266Mhz
5) as #4 above but changed DRAM frequency to DDR2-533Mhz = BIOS freezes when trying to save changes, I have to manually kill the power and the PC no longer boots up ... have to reset the BIOS all over again and start from scratch

Don't know if this is causing it, but i am currently using a crappy Dual Core E2500 (2.5GHz) until my Q9650 arrives ... would this crappy CPU cause my problems?
 
think i'll just give up on it and leave it at 400Mhz ... just wish i'd have known it wouldnt work or i'd have bought 6400 instead of 8500 ... surely i wont noticed too much difference?

i'll run memtest and post results ... cant tell you how much i appreciate the help so far guys
 
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