Overclock not working

cklynx

cklynx

cklynx

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4 Sep 2011
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Ok so ive decided to create a new thread because my previous one was going off topic anyway.

I have been reading a lot of step by step tutorials but none seem to be working. I have been raising my FSB from 333 - 353 - 360 - 380 - 400.

Also, i have changed the DRAM to 4-4-4-12 at 800MHz trying to get the FSB:DRAM ratio to 1:1 but its still stuck at 5:6.

My PC specs are;

Motherboard: Gigabyte G41M-ES2L
Intel Quad Core Q8300
Nvidia GT240
4GB DDR2 RAM
1TB HDD
450W PSU
Win 7

Here are pics of my settings in my BIOS:

imag0923.jpg


imag0924x.jpg


imag0925.jpg


imag0926.jpg


CPU-Z Results

wdads.jpg


Any ideas?
 
My guess is that the overclock isn't stable, so when you save and reboot it just fails and reverts to stock. Especially because you set your vcore to 1.03V, when you're probably looking closer to 1.3V (start high and work your way down to the lowest stable setting). Try doing it again with vcore at 1.3V and let us know. Also, if speed step is on then the cpu clock will drop at idle so check cpu-z when it's under load (eg prime 95, good way to check stability too)
 
Devrij said:
My guess is that the overclock isn't stable, so when you save and reboot it just fails and reverts to stock. Especially because you set your vcore to 1.03V, when you're probably looking closer to 1.3V (start high and work your way down to the lowest stable setting). Try doing it again with vcore at 1.3V and let us know. Also, if speed step is on then the cpu clock will drop at idle so check cpu-z when it's under load (eg prime 95, good way to check stability too)
Click to expand...

Ive run Prime95 and it completes without errors, also use IntelBurnTester and that runs without errors. Speedstep is known as "CPU EIST FUNCTION" in my BIOS.

Also, i cant change the Volts slightly it jumps from 1.28 (standard) to 1.31 then 1.37.

How can i change the volts to just 1.3?
 
I'd hope it did pass IBT at stock! Yeah I just noticed you'd disabled EIST and C1E so disregard that. Strange about the vcore setting? Those are pretty huge jumps. Avoid the 1.37V, but 1.31V is still safe for that chip, hell you'll get more than 3GHz out of it at that voltage. Try it at 1.31V for now, and if that works then you can start pushing FSB higher (unless your cpu multi goes higher than 7.5, in which case raise that first) until your RAM starts losing stability.

Up the vcore to 1.31V and report back anyway. Make sure you F10 out of the BIOS to save the settings :p

EDIT: looks like 7.5 is your max multi, so if you want to push past 3GHz you'll have to overclock your RAM. What mobo are you running btw? Have you checked to see if there are new BIOS updates available?
 
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Ok so what your saying is i just push for more than 3.00GHz? Im still sticking with 1.31V as i dont want to go any higher. My CPU multi highest is 7.5.

Yes i am F10 and clicking Y to save and it reboots although it always reboots once, shuts off, reboots again and everything is 100% fine. Is that normal?

My motherboard is a Gigabyte Technology G41M-ES2L and ive just had a look at their BIOS updates page but dont really think these updates are really relevant to me?

Here is a link to the BIOS updates page http://www.gigabyte.com/products/product-page.aspx?pid=3024#bios

This is prime95 and IBT results

fsave.jpg
 
nope, it should reboot and then away you go into windows. What's happening is it's rebooting, the overclock is really unstable so it crashes, then it reboots with the original settings. That's why your overclock isn't sticking. So either your RAM or your cpu isn't stable at the settings you're going for. I'm surprised if it's a lack of vcore, as 1.31V should be enough for that chip to get a measly 500MHz extra.

Ah, your RAM likes to run at 5-5-5-18 not the 4-4-4-12 you have manually set it to. Try changing the timings to 5-5-5-18 and trying again.

Also, next time you boot into windows, can you post a shot of the SPD tab in CPU-Z? That'll show you what timings your RAM should run at at certain speeds. 4-4-4-12 might be for when it's running at a lower speed (eg 666MHz)
 
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Also, there's a possibility your northbridge might not be stable at 400FSB, but I'd be surprised if that were the case, and I don't see an MCH or NB voltage option in your BIOS so if that turns out to be the case you're stuck. Again, I doubt this is the case, but if loosening up your timings doesn't work I'd try lowering your FSB and pushing it up bit by bit until you find the wall.
 
Just changed the settings but forgot to mention i get this message when i go back into my BIOS.

Should i up my V to 1.37?

imag0927.jpg


Also as requested SPD Tab in CPU-Z

wadsa.jpg
 
Okay, stick your memory timings back on Auto (should be 5-5-5-18), make sure the memory multiplier leaves your RAM at 800MHz (which it should already be). Put your DRAM voltage to 1.8V. So your RAM should now be running at stock volts and settings, hopefully ruling it out of the equation.

Leaving the FSB at 400MHz, drop the cpu multi down a notch until it's at x7 (should give 2.8GHz). Leave cpu volts at 1.31V

If that fails, try dropping cpu multi down again until it gives 2.5GHz (stock speed). If it STILL fails, with cpu at stock and RAM at stock, then we know it's your mobo not liking the high FSB.
 
Set the RAM back to Auto and dropped the CPU Multi to 7 which gave me 2.8GHz, saved settings and still failed to boot up properly first time.

I will try going to stock on the CPU now

EDIT: Just set the FSP to 358 to give me 2.5GHz and still failed to boot first time

Just checked CPU-Z and it now says my Core Speed is 2333.3 MHz so it has dropped from 2499.6 MHz so maybe i can overclock a little bit?
 
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Can you just confirm one thing for me. CPU Vcore, in the original picture you posted, you have it set to 1.031V, not 1.31V. Is this still the case? If so, we've found your problem. At that voltage there aren't many cpus that'll boot lol.
 
Your multiplier setting will have stuck, it must've just reverted your other settings to stock, which is why your clockspeed is now 2.3GHz.

The main thing here is to check that you haven't set your vcore to 1.031 by mistake. If you could check that and show a picture of what you have set it to then we might have found the issue.
 
Oh god i never noticed that il try it now thanks

edit: still fails to boot, i will try lowering the FSB
 
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There it is. I did think it was odd that the voltage options were such huge jumps :p Try 1.3V flat (or as near as you can get), with everything as you had it before (400fsb, 7.5 cpu multi, RAM timings at auto). I reckon you're there.
 
Just set FSB to 400, CPU Multi to 7.5, RAM timings auto and volatage to 1.3V flat and it still fails to boot first time :/ want me to post any more information?
 
If that's successful, run IBT to check temps and stability (make sure they don't go too far beyond the high 70s). IBT is a worst case scenario, so don't be too worried about those temps, but a good hour or two of prime will tell you what your real max running temps could be in an intensive cpu task.

If that's all good, then you can start squeezing your FSB up 5MHz at a time until your RAM loses it (as you increase FSB your RAM speed will increase), then you can think of knocking your DRAM voltage up to 1.9V, but I don't like to pump too much volts through my RAM as it's temperamental stuff and it's hard to test stability.
 
What ever i change it to, it never boots up firsr time.

Just tried setting my FSB to 340 at 1.3v and it still fails to boot
 
Maybe there is an option in my BIOS which is stopping my pc from booting when i up the voltage or something?

EDIT: Something is definitley not right, 2.5GHz boots up fine but as soon as i even make the slightest change and make it 2.55GHz no matter what voltage i select it doesnt boot first time
 
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