Problem with voltages on q6600

Hello, i am new on this forum so hello.
Iam the happy owner of PC:
Proc: Intel Quad Q6600 2,4GHz 8MB B3
MB: Asus P5KC DDR3/DDR2 S775
Graphic: Asus Nvidia Gtx 295 1792 MB
RAM: OCZ DDR3 PC3-10666 REAPER 2x2GB 1333MHz
Power: CHIEFTEC CFT-560A-12S 560W
Cooling:Asus Triton 70 Quiet
Box: iBox Lynx 703LD + LCD
OS: Windows 7 64bit

Some weeks ago i decided to oc it to 3.0 ghz.
I read about oc this processor on this mobo a lot, and after learning about it iam trying to overclock it.
I cannot to stable it on 333 FSB ;/
This is my results:
1. FSB Frequency 333
CPU Voltage 1,3875
CPU PLL 1,7
FSB Termination Voltage 1,4
DRAM 1,7 (all timings and dram freq are on auto))
NB voltage 1,55
Result: p95 fail on core0 in 30 s on core 0
2. CPUV 1,4
Rest on auto
Result: p95 fail on core0 in 30 s
Temps: cores 70-72 (i know it is too much for B3)
3. CPUV 1,4
PLL 1,7
FSB Termination Voltage 1,4
NB 1,55
Rest on auto
Result: failed on p95 after 2 sec
Temps: too high, about 72

This tries was lot more but the effect the same.
I decided to low FSB freq to 320.
1. CPUV 1,4
Rest on auto
Result: stable on p95 (15 minutes)
Temps: ~72
2. CPUV 1,3875
Rest on auto
Result: stable on p95 (15 minutes)
Temps: ~71 :/
3. CPUV 1,35
Rest on auto
Result: fail to p95 after 2 sec.

I read about it and lot of people reach 3.0 9x333 stable on 1.2625 and rest on the standard volts.
Can you tell me what iam doing wrong, and how to set it?

In BIOS i ve got some more options like:
Clock over-charging voltage (i couldnt find what it means so i set it to auto)
Load Line Calibration
CPU GLT Voltage reference
NB GLT Voltage Reference
I read about GLT and if i dont whant to squeeze last MHZ it should be on auto.

I would be gratefull if you could help me.

Photos of my BIOS settings:

Reset all of the voltages back to Auto, then give this sticky a read...

HOWTO: Overclock C2Q (Quads) and C2D (Duals) - A Guide v1.1
http://www.overclockers.com/forums/showthread.php?t=515316

I read it, and i don't know what iam doing bad ;/

What part(s) of it don't you understand?

I don't know in whitch bios option is something wrong.
I did a lot of tries and i cannot reach 3 Ghz stable ;/
Can you help me with that?

Ok, i tried those settings:
CPU ratio 9
FSB strap to nb 333
FSB 333
PCIE 100
DRAM freq ddr3-1066 9-9-9-27
CPU Voltage 1,35
CPU PLL 1,5
FSB Termination Voltage 1,3
DRAM Voltage 1,8
NB Voltage 1,4
LLC enabled

After 5 sec of p95 BSOD ;/
I do not understand why it is happening. Volts are very high, it should be ok, isnt it?

spinacz said:

Ok, i tried those settings:
CPU ratio 9
FSB strap to nb 333
FSB 333
PCIE 100
DRAM freq ddr3-1066 9-9-9-27
CPU Voltage 1,35
CPU PLL 1,5
FSB Termination Voltage 1,3
DRAM Voltage 1,8
NB Voltage 1,4
LLC enabled

After 5 sec of p95 BSOD ;/
I do not understand why it is happening. Volts are very high, it should be ok, isnt it?

Click to expand...

Is 1.8V your RAM's suggested voltage? DDR2 usually runs a bit higher than that.

Like Theocnoob suggested check to see what voltage your ram is asking for

Also you need to find out your vdroop (vcore decrease) Just because you set it at 1.38v in bios does not mean it is actually 1.38.

Example is I have mine set .05-.06 higher in bios then it actually is. In bios I think mine is set to 1.47, but runs 1.424 at idle and down to ~1.34 on load. So on load my cpu is really only at 1.34

Now about temps.

1) tell us more about the fans in your case. How many, what size/rpm and location. From a quick google search that case looks as though it has sub par cooling.

2) that cpu cooler should be up to the task. Have you ever lapped it? I have always had great results when lapping any cooler.

Please let me/us know if you have any more questions.

ps: I good way to see if your case has good cooling or not is to do a run like normal with the case closed like you have been and record your temp like you already did. 72c was your temp. Now run the sampe 15min prime test with the case open and a large fan (like a box fan) blowing right into the case. If your temps drop a lot then your case is not up to the task. If the temps only drop ~5c then your cpu cooler is to blame in my opinion.

You can try lapping it or just replacing the thermal compound with quality compound.

Now granted my Q6600 is a GO stepping but it takes me just 1.175v CPU voltage and 1.50v CPU PLL to reach 3Ghz. 1.3875v is really high for only 3ghz, that is what I would need to clock it to 3.6ghz.

There is definitely something else going on here.

Try taking your ram off auto and set the ram as close to it's stock frequency as you can. I think the ram might be getting overclocked and that might be causing your problems.

kmo_9000 said:

Now granted my Q6600 is a GO stepping but it takes me just 1.175v CPU voltage and 1.50v CPU PLL to reach 3Ghz. 1.3875v is really high for only 3ghz, that is what I would need to clock it to 3.6ghz.

There is definitely something else going on here.

Try taking your ram off auto and set the ram as close to it's stock frequency as you can. I think the ram might be getting overclocked and that might be causing your problems.

Click to expand...

Oh, yes RAM. I see you have the OCZ reapers (some of the best ddr2 ram in my opinion). It likes volts and it should ask for. I have had three different sets of reapers and they ranged in asking volts from 1.8-2.1 and both ran best at 2.2-2.3 Your post states you are running it at 1.7v so try bumping it up.

Like KMO_9000 is saying you are probably overclocking the ram and therefore should be sending it more volts.

I don't know how much worse the b3 was than the g0 q6600 but one thing you can try is 8x333 to see if everything else is prime stable at 333 fsb. If it is you will probably need a better cooler/more volts due to a low clicking chip. If it fails at 8x333 then you will need to isolate whether it is the mobo or the ram letting you down.

Also, I don't know about your motherboard, but my x38 board was very sensitive to north bridge cooling. An overheated north bridge would cause prime failures on blend for me.

About my cooling:
On processor ASUS Triton 70 quiet (thermal paste changed 2 weeks ago on revoltec thermal grase diamond)
1 cooller master 120mm fan blows air in (Front)
2 cooller master 129mm fan blows air out (rear)

My OCZ are: OCZ DDR3 PC3-10666 REAPER 2x2GB 1333MHz, and i read about it and it is not good to put them over 1,8V.

I've tried those sets:
Ratio 9
FSB strap to NB 333
FSB 333
DDR freq DDR3-1333 6-6-6-18
CPUv 1,45
CPU PLL 1,5
FSB TV 1,3
DRAM V 1,8
NB 1,25

And it Was stable for 5 minutes on p95 large fft but i have to shut it down in case of temps, above 75C.

Next try with one ddr in one slot, and after it change slots:
CPU ratio 6
FSB strap to nb 333
FSB 333
DDR3 freq ddr3-1333 9-9-9-27
CPU v 1,3125
DRAMv 1,7
NB 1,4
p95 was stable in each case.

I really dont know what to do ;/
It seems that my q6600 need a lot of voltages, but as much?!
Maybe my mobo is freaking?

Any ideas?

One more thing about temps. After 15 mins of prime on default 9x266 my ASUS Triton is barely warm but temperatures on HWmonitor
shows ~60C on max core, is it normal?

I ve noticed one more thing. Im tring now setups (adding +5 to FSB after 10 mins of p95):
Ratio 9
FSB strap to nb 333
fsb freq 310
Dram freq ddr3-1242 9-9-9-27
CPUv 1.35
DRAMv 1,8
rest on AUTO
and i noticed that in cpu-z CPU voltage shows in stress ~1.17V. Is it normal?!

I' ve done some more test to hit 2.8.
Resoults:
Ratio 9
FSB to NB 333
FSB 311
FSBRAM 1:2 9-9-9-27
PLL 1,5 (min as i can set)
FSB TV 1,2 (min)
DRAMv 1,7
NB 1,23 (min)

CPUv 1.3375 - p95 stable 15 min, temp ~67C
CPUv 1.3250 - p95 fail 3 min, temp ~65
CPUv 1.3125 - p95 fail 1 min, temp ~64C

The same for ratio 8 and FSB 350.

Eh... i dunno why it needs so many voltages ;/
Something is broke?

Some chips just don't overclock well. And make sure you only compare your results to b3 q6600s. Most of the q6600 overclocks were g0, and while I'm not positive, I recall it being a much better overclocker. Mine would do 3.0 on stock voltage, for example.

Maybe i will change the cooling and try to reach 3.0 on 1,42.. would it be safe?
I ve got iBox Lynx 703LD, how big cooler on cpu can i put inside? It is midi tower.
I need to get down ~15C with it ;/

I ran mine for years at 3.8/1.45 with an 80+c load temp. Those chips were bulletproof.

Ok, tell me one more thing. With this hardware what i have got, if i will change the q6600 B3 on Q6600 G0 i will be able to push it much higher?
Or maybe difference 775 cpu?

Assuming you live in the united states, I would say it isn't worth it to try to find a new q6600. That chip is so old that an ivy bridge i3 would outperform it in most tasks. There are also cheap phenom/thuban chips in the Amd lineup, as well as the quad core pile drivers that would all be better. But if you have to stay on that motherboard, I would make sure you can do 400fsb, try 400x6, otherwise there is no point to getting a g0 chip.