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Question on Overclock

Droc

Droc

2[H]4U
Joined
Mar 20, 2007
Messages
3,424
I havent OCed in years and I have forgotten most of it.

Im overclocking the computer in my sig currently. I was having loads of trouble at first, I couldnt get past 2.88ghz. My goal I figured was 3.2ghz. I picked that number because my ram is 800mhz so the most I figured was 400mhz fsb right?

I read somewhere that some Asus boards have issues with 350-400mhz FSB and that you should try 401 to 405

Memory timing and such is over my head I figure at this point, so I was just OCing my CPU.
I was trying to set the memory to 1:1 but since I would be trying 403mhz it would put my ram over and its one more issue I dont care for, so I selected "unlink" and left ram at 800mhz actual.

So at 3.206Ghz Im running prime95 with Vcore of 1.28
If Iget errors I just up the vcore more right?

Also, if I set my vcore in bios to 1.38, why in cpuZ does it usually show something much, much less? ie my current was set for 1.38 but CPUz shows 1.264?
 
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Im confused. I set my vcore to 1.38 in bios but in CPUz and hardware monitor both show 1.28
I know Im not stable at 1.28 but I am at 1.4(auto vcore). Its hard to back it down accurately.

I found this in graysky's guide here
To illustrate, consider this analysis of two difference vcore settings and the temps they produce on my Q6600 @ stock settings (9x266=2.40 GHz) as well as running overclocked (9x333=3.00 GHz). The two voltages I used were 1.1375V and 1.2625V set in the BIOS that correspond to the two clock levels of 2.40 GHz and 3.00 GHz respectively. In case you’re wondering, these translated into 1.112V and 1.232V in Windows as read by CPUZ.
Click to expand...
This must be my issue, can someone help explain or link to me this translation as Im confused.
edit: ok, it must be Vdrop, still confused. I set to 1.388 in bios and its 1.280 in cpuz and stable so far(30min). I will probably have to up it more, but how I go about accurately doing so is still confusing.
 
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on-board or software voltage sensors are notoriously inaccurate. i dont even bother looking at voltage in CPUz.

I will probably have to up it more, but how I go about accurately doing so is still confusing.
Click to expand...
all you do is bump the voltage up, then check temperatures. if temps are good but stability isnt, up voltage another step and repeat. once you hit the max temperature you are comfortable with, step the voltage back one notch and then dial down the overclock until it is stable at that voltage.
 
Read this: nvidia nforce 680i overclocking guide

you'll have to google it.
It will answer all your questions.
 
Question on Intelburn test

the output, such as the linepack output, aside from the results should I pay attention to the times and speed(gflop) results? I see many people have screenshots of large speed numbers +50gflops but Im only getting 7. that mean anything?
Ran again and getting around 14gflops, looked around and that seems average.
I kept hearing people using IBT and hitting insane temps, but after prime95, orthos and IBT, I havent hit anything higher then 48c. I have the True120 extreme with push/pull in a P180 case with gentle typhoons.
 
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