Cannot get machine to overclock!

noelmg · 21 Aug 2008 at 16:34

Hi all

I am running an Intel E6400 C2D with a Gigabyte GA945P-DS3 mobo.

I would like to overclock this system to get some more performance from the CPU, but am running into problems that I've never found an answer for!

When I go into the BIOS to overclock the system I can change the values, but when I restart the PC after saving changes, it always resets the values back to square 1 again (everything default). Any other changes I make are saved, it's only the clock speed settings that get reset.

Screenshots from CPU-Z and the BIOS settings I can change:

Thanks in advance!

Noel

noelmg · 21 Aug 2008 at 16:45

Thanks!

I have tried all sorts - increasing it by just 1 or 2 (to 275). PCI-E is at 100Mhz so I just leave that there.

I was wondering if there is some sort of safeguard in the BIOS that prevents you from overclocking it too much? It's on the latest stable release of the BIOS.

Thanks
Noel

noelmg · 21 Aug 2008 at 18:26

Just tried again with three different settings:

1.5x memory divider, FSB 433
1.5x memory divider, FSB 270
1.5x memory divider, FSB 267 (just one above the default).

I've also just tried the upping the voltages by +0.1V.

Same still happens, press F10 to save, PC reboots, go back into BIOS and they're back at "CPU Host Clock Control Disabled".

The memory settings that are at Auto - well I did have them set at 5-5-5-12 as per this thread, but it makes no difference, the PC still doesn't save the overclock settings.

Thanks
Noel

noelmg · 21 Aug 2008 at 22:19

Just a quick update!

I think I've found where I was going wrong.

When I'd made a change, I was rebooting and going straight back into the BIOS on the next boot to see whether it had taken or not. I resisted the urge and booted into Windows, and lo and behold over the course of the evening, several BSODs and several glasses of Baileys later, I have managed to get it up to 2.72 GHz from the original 2.13. I have stability tested it using Orthos for 30 mins at this speed and all is running fine.

I am running at 340MHz FSB and 2.00 memory multiplier now, I took it to 350 earlier this evening and it BSOD'd, then came up with "DISK BOOT FAILURE" on boot, causing a temporary increase in my heartrate, but all seems OK now.

So thanks to all for help!

Noel