Hi,
Having some OC problems with these settings with BIOS 1506 :

CPU Frequency: 350MHz
DRAM Frequency: DDR2 700MHz (1:1)
Performance Mode: Standard
PCI Express Frequency: 100
PCI Clock Synchronization Mode: 33.33

Memory Voltage: 2.20V
CPU Vcore Voltage: 1.4V
FSB Termination: 1.4
MCH Chipset Voltage: Auto
ICH Chipset Voltage: AUTO
Digital Home Mode: Disabled

Under Advanced Chipset:

DRAM Timings by SPD: Manual (per RAM specs 5-5-5-15)
DRAM ECC Mode: Disabled
Hyper Path 3: Disabled
DRAM Throttling Threshold: Auto
*All PEG Settings AUTO*
Under advanced CPU settings:
Microcode Updation: Enabled
Everything else: Disabled

I have every device Disabled that I don't need eg. RAID controller, Serial Port etc etc

Problem is that with these setting I run Prime95 or Orthos and it immedietely gives me errors.

Any idea's what mistakes I've made ?

Cheers

Everything looks good, have you tried a higher or lower ratio? How about a newer Bios?

How about trying them in "Auto" and not "Turbo" how about if you run them with SPD timings instead of manual? More CPU voltage?

I have had some problems using the higher ratios on my ASUS, it has something to do with a timing that you can't adjust in the Bios that is set too tight when you OC...I think it is TRC!!!

This ram I am using now has ran over DDR 1100 in a Gigabyte board, but struggles over DDR 1000 on this one...I don't think it will pass ORTHOS at DDR1050, will be testing more later.

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I am running an older system (955x chipset) but I do have the PEG options in my BIOS - I disabled it. The PEG used to push my overclocked video card beyond it's limits.

Have you checked the RAM with something like MEMTEST86 (I think that's the name of it) - you can download it and check your RAM.

What about running the CPU and RAM at stock speeds? does the system have any problems? I think that the D9 Micron chips on the Corsair RAM like high voltage, they should have no problem with 2.3V.

well after a lot of &^%king about I've settled for 3.41GHz..... I manged to scale back the CPU voltage a few notches and have my Tuniq Tower running at only 750rpm.... less noise is better and I'm happy with a better than 30% overclock.......