The Official OC (OverClocking) Thread!

@abuzar1

After many issues I have gotten my Q6600 OC'ed stable @ 3.0Ghz w/ 1.3825 volts.

 

what is the batch code of your cpu if you dont mind me asking...

 

Pea, that's great! I know you were having some problems. I'm going to run Prime 95 and make sure mine is still stable after flashing the new BIOS.

im1992, no I don't mind you asking, but I don't know where to find it. Tell me where to look and I will post it here.

EDIT: Now I realize you weren't even asking me! lol

 

1.4 for 3.2GHz and 1.5 for 3.6GHz. Ill take a look and go for the 3.2, I know my CPU fan isn't good enough to go to 3.6. At 3.07, Vista and Speedfan report my voltage at 1.32. Now I do not know if the CPU is actually running at 3.07 or if its at stock 2.4. Is that a normal voltage? When I bought my CPU it was the OEM version on Newegg.

 

3.25GHz @ 1.45V in the BIOS. Speedfan and CPUz though report 1.36v while stress testing with prime95. Going for about 5 minutes and the CPU hit 68C at max. I may need a better fan.
I'm looking at this one, my friend has it and his quad is 80ish Fahrenheit idle (sorry, don't know Celsius)
http://www.newegg.com/Product/Product.aspx?Item=N82E16835887002
While typing this and stress testing:
Thread 4 failed after 6 minutes
Thread 3 failed after 7 minutes
Thread 1 failed after 8 minutes.
Thread 2 still going.
CPU 56C now.
My questions. Why is the voltage not reported as what I set it to?
Would a better fan help my overclocking?
Why is 3.07 the highest stable I can get, I see people going to 3.6 on air.

 

I would get this:

http://www.newegg.com/Product/Product.aspx?Item=N82E16835233003

Hopefully I will get one of those for myself too.


1.36v would not be enough to get 3.25Ghz, you probably need more voltage. Remember, it's the voltage you get in the end that counts, not what you set in the BIOS.

 

Idling I can get 1.924 to 1.4v. Why did I have to set it to 1.45 to see what I am seeing?
About the fan, I still am hooked onto the fan I choose, the reviews are better for the Q6600s saying @ 3GHz its 28C idle.
I remember that I have a heatsync from a XPS Gen 3 that looks like the one you sent me. If anybody knows a way to monitor the temps on that let me know or else I'll swap it in my other case see what my Q6600 does with that. Just hate swapping heatsyncs because of having to remove the motherboard.

 

I have no clue what batch # mine is from. On the other hand I do recommend buying the Q6600 from ClubIT as the quarentee a G0 stepping, and have prices comparable to neweggs.

 

core2kid, the effect you are seeing is vdroop, the plague of overclocking. its due to the mobo losing the power as it runs thru its circuitry. then again it droops more as you load it.

as for the volts you will need to hit xx speed, if you have a newer chip you might not even be able to hit 3.6ghz as the volts needed will overheat it. some of the newest chips seem to be poor for ocing

 

its usually on the box and its also on the ihs itself
it would usually say
Example of my Q6600
BATCH CODE: L737B046

 

if you also have a q6600, please let me know the batch code and the stable overclock.

its usually on the box and its also on the ihs itself
it would usually say
Example of my Q6600
BATCH CODE: L737B046

-thanks

 

So right now it's something to do with the chip, not the board right? So what if I set it at 1.6v and then it'll hit around 1.45-1.5. Is there any danger of putting to much voltage to a chip? Can I destroy it for good?

 

Looking on google a bit, I see that my board, The P5K-E has Vdroop problems. There is a pencil mod: http://www.overclock.net/motherboard-volt-mods/257086-my-results-asus-p5k-e-pencil.html But I really don't understand what they did if anybody could clarify it for me. Secondly, I set the voltage to 1.5 in the BIOS and I see 1.45 with Speedfan Idle. I have to head out somewhere so I didn't test under load. I also read that Auto in the BIOS will automatically give voltage to the CPU depending on the speed. Is that true? Please help me, Im awesome at building computers and messing with the internals of Windows XP but I can't do a simple thing as overclocking

 

the "auto" voltage will be far too high than the cpu really needs. i do not recommend using the "auto" setting on a voltage as important as the cpu core.

 

Actually I had it at auto to start off with and it didn't have enough voltage.

 

oh, well i am wrong
On my asus when i set it to auto, it gave the cpu 1.45v
And when i manually set the cpu to 1.15v, it still worked at the same overclock w/o any stability issues.
-im1992

 

This is normal, or so common w/ all the major brands I OC with. It's the voltage drop and do note, other then the ASUS (P35/X38/X48) most often have a further voltage drop under load as wee, know around the OC world as vdroop. So make usre to set in CMOS enough to make up for what is needed in acutal 100% loading. Most Gigabyte I used need a bit more then others. You are on ASUS and if not the P35, may not have the BIOS fix for zero out load line caliratrion (no vdroop). ASUS and DFI used to add a natural vboost to off set it before using loadline cal. Older ASUS on S478 actually had own vboost under loading to make up for drop in CMOS.

And yes a better fan and heatsink will help any OC. Lot on other forums easily get 3.6+ on air easy. I get an average of 3.8 and upto 4.0 on air with Q6600 and E6750 mouch easier.

And YES, the pencle mod for pre- loadline cal models worksa fine. And Auto voltages is also much more then most mobos need, especially the newer ASUS. They ten to overvolt a tad too, so always check in Power Management to confirm.

 

I don't know if the P5E has loadline calibration or not but I enabled it on my rampage formula and the vdroop is now almost non-existant. you still need to check it in hardware monitor as it is still not the same as I set it in extreme tweaker. I have it set at 1.36875v in extreme tweaker and it shows up as 1.352v (actual) in hardware monitor. but with loadline calibration enabled it doesn't deviate from 1.35 even when fully loaded.

I read in a review for my mobo that said "do not enable loadline calibration. it can damage the cpu". I don't see why. if it's not enabled you have to set the vcore quit a bit higher to get the vcore you need under load due to vdroop. looks like a good feature to me.

 

@im1992

Batch Code: L737B777

I have the Q6600 G0 stepping cpu @ 3.0 Ghz w/ 1.3825 volts. The temps I originally post (48-53 degrees cel.) are off I forgot to turn up my heatsink fan. So now the temps, with the higher fan speed, are at 45-47 degrees celsius for Core 1 and 2. And 40-43 deg. cel. for Core 3 and 4 at idle.

 

I think you mean celsius. the cores can't be colder than ambient temp w/air cooler. you don't keep the room at 40F do you?