Q6600 - Can't get past 3.04GHz

PCJake

Distinguished
Jun 21, 2008
2
0
18,510
GA-EP35-DS3L
Q6600 w/ Arctic Cooling Freezer 7 Pro
G.Skill 4GB (2x2GB) DDR2 800
Vista Home Premium x64

I've run into a wall with my overclock: I'm stable at 3.04GHz (380 fsb x 8 CPUM), but anything above that and I get a BSOD. I've tried to get higher with different multipliers but it's the same story every time. I've flashed to the latest BIOS, and my current settings are as follows:

-CIA2, C1E, E1ST, Virtualization, No-Execute Memory Protect, and any other speed enhancements have all been disabled.
-1:1 RAM divider with 5-5-5-15 (default) timings.
-DDR2 Voltage: +0.2V
-FSB: +0.1V
-MCH: +0.1V
-CPU Volt: 1.35625V

I'm fine with temperatures, and I'd like to get to 3.4GHz. Any suggestions?
 

dagger

Splendid
Mar 23, 2008
5,624
0
25,780
Enable loadline calibration if your board supports it. Also increase vcore further. Intel's "recommended" vcore for Q6600 is up to 1.5v. It's a tough chip, and will tolerate a lot. Keep an eye on temperature, of course.
 

iluvgillgill

Splendid
Jan 1, 2007
3,732
0
22,790
i think now most thread created about the Q6600 is where the simple Vcore increase doesnt satisfy the speed of the chip.

i think its time to update the stickies on these issues!

wouldnt you say so dagger;)
 

PCJake

Distinguished
Jun 21, 2008
2
0
18,510
My VID is 1.325. I raised the Vcore to ~1.435 and now I'm running at 3.4. Thanks guys!

I think I could go higher, but I need to know more about temperatures. I know it should stay below 70c, but is that for individual cores or the cpu as a whole?
 

lucuis

Distinguished
Apr 21, 2008
1,048
0
19,310


71C on the cores.
 

iluvgillgill

Splendid
Jan 1, 2007
3,732
0
22,790


what the point of that?saying the limit is 65C but 70C is ok as well.

so whats the limit?LOL
 
A G0 Q6600 shoud be able to reach 3.0 GHz at stock voltage with a decent HSF. Upper range with an ACF7P shoud be around 3.2 to 3.3 GHz.

My Q6600 has a stock voltage of 1.2625 volts. I can reach 3.6 GHz with a TRUE/S-Flex fan at 1.45 volts drooping to 1.400 volts with a GA-EP35-DS3P. Prime95 loaded core temp is around 65 C.
 

dagger

Splendid
Mar 23, 2008
5,624
0
25,780

The limit is 71C. Once it reaches 71C, the cpu will automatically drop back to 6x, no matter what your bios settings are, to cool off and protect itself.
 

lucuis

Distinguished
Apr 21, 2008
1,048
0
19,310
I have had mine running hotter then 71C without it throttling. I think 71C is the Max safe temp to run for more then a few seconds.

If i can remember correctly the Q6600 G0 is supposed to throttle at 85C, not sure if that's TCase or not though.
 

Evilonigiri

Splendid
Jun 8, 2007
4,381
0
22,780

Well, see here, if you let the cpu get too hot, it will start affecting nearby components, such as the NB. In my case, NB is hot enough as is, idling at 49C. I don't need any more heat from the CPU.