All of a sudden my computer wont overclock...

[Nieldo]

Hey guys, thanks for taking a look at my thread . Typically, no more then a month after the warrentys expire my computer has stopped overclocking.

Mobo:Gigabyte GA_965P_DS3
CPU: Intel Core 2 Duo E6300 "LGA775 Allendale" 1.86GHz (1066FSB)
RAM: OcUK 2GB (2x1GB) PC2-6400C5 800MHz DDR2 Dual Channel Kit

For most of that two years Ive been running at 2.8 Ghz, but now all of a sudden it does not want to overclock.

In the BIOS I:
Set the clock speed to 7x400 for 2.8Ghz
Set the PCIe to 100 mhz
Set the memory multiplier 2 for 800mhz
Set the memory timings to 5-5-5-12
Set the memory voltage to +0.2-0.3 (up from 1.8v)
Set the MCH Voltage to +0.1v
Set the FSB Voltage to +0.1v
Set the vcore to 1.45v

Save and exit bios.

My computer turns off, turns back on again and I hear the fans blowing for around 5 seconds, after this the computer posts but the clock has only increased from 266x7 to 267x7 .

Ive tried clearing clearing the bios settings, taking the battery out and back in etc. Still wont overclock anymore.

Any ideas? I dont have any other hardware to fault check with.

 

[Cob]

Does it boot OK with the CPU at stock and the memory set to 800mhz?

 

[Nieldo]

Yup

edit: thats what Im running it at now. Stock settings etc.

 

[Conan257]

Run at stock settings, get into windows
shut down windows using the start menu, dont do a restart.
switch on and go back into bios and see if it'll minor overclock.

 

[Nieldo]

Well I tried a few different combinations of clock settings, each time doing a proper turn off and leaving it about 20-30 settings before turning it back on and going into BIOS.

320x7 for 2.24Ghz, not very minor I know. RAM at 320x2.5 for 800Mhz. Same deal, turned off and back on, fans on full for around 5 seconds and then it posts at 267x7.

320x6 for 1.92Ghz, RAM at 2.5 same as above. Same thing happend this time only the clock as at 267x6 for 1.6Ghz.

So... it can go lower but not above 267x7.

 

[MoNkEyMiKeY]

Thought I'd better put this reply I put in another thread

Latest custompc mag says that gigabyte boards have a in built fail safe that stops OCing after so many hard resets. They have also put a way of fixing the problem.

Says to shutdown your pc and reset CMOS jumper. Then when you startup go into the bios and set everything to standard settings. Load windows and leave it running for a few minutes, then shut down the usual way. Showing the bios that the pc is running ok should hopefully reset the failsafe. Says you may find it reppears later on if you are OCing. Hope this might help, I'm running the same mobo but never experienced this problem. Well it has reset my OC's once or twice though.

 

[MoNkEyMiKeY]

Thought I'd post my settings, I'm running a Q6600 at 3.0ghz.

Clock ratio 9x
CPU Host frequency 333
PCI-e 100
System memory multiplier 2.50 (gives frequency 833)
DDR volt +0.2
PCI volt +0.1
FSB volt +0.1
MCH Over volt +0.1
CPU volt 1.40

Runs perfectly stable. You can sse my setup on my xfire page.

Have you checked the official thread for our board? http://forums.overclockers.co.uk/showthread.php?t=17610180

 

[Nieldo]

Tried it once so far, no luck yet.

-Shutdown PC
-Reset via the jumper above the battery
-Started up and went into BIOS
-Loaded Failsafe defaults
-Saved and Exited BIOS
-Let windows sit on the login screen for a few minutes
-Shutdown and let it sit for 30 seconds
-Started it up and into BIOS to set the overclock settings
-Still wouldnt clock past 267x7

So Im trying it again this time, I set standard BIOS settings instead of the failsafe or optimized defaults and am using the computer instead of letting it sit at login screen, will try overclocking in an hour or so.

Also looking for some of this info in my Gigabyte manual and their website, so far found nothing. Bit silly of them to skip this as for someone like me it cripples their computer.

EDIT: Yeah I used the mega thread as a guide to setting up BIOS settings and voltages etc.

 

[MoNkEyMiKeY]

Have you tried a lower memory multiplier? Mine kept reseting my OC becuase I'd over looked it. I was only trying to OC to about 2.7 then I realised and set it correctly and all was ok again.

When you set oc settings does it sound like its started up then shutoff then started again? Mine does that when the OC is unstable.

 

[Nieldo]

Well my aim is for 2.8Ghz, 400 x7. The lowest memory multiplier I have is 2 and that sets the memory to 800mhz.

If acctually turns off when I change the voltages, if I leave the voltages as normal then the computer stays on but there is a longer then normal pause before POST.

 

[Nieldo]

Would re-installing the BIOS reset the failsafe?

 

[Tenzen]

Bring everything to stock under clock (use a bigger divider)the mem and then overclock the fsb.

Also might be worth switching DDR slots

 

[Nieldo]

Problem fixed by re-flashing the BIOS with F13.

Cant conferm if the failsafe reset Monkeymike posted acctually works.

And I did try switching around the ram before I flashed, using different slots and single sticks etc. It didnt work.