I have never overclocked. I read about q6600 overclocking downloaded all the utilities

[alanwest09872]

but how did your oc on your cpu go

 

[TungFree]

Sorry I was having to RMA my cooler and hard drive. Am back

I do not wish to overclock it past 3.2 ghz.

At 3204= 356x9 FSB
and I varied te Vcore from 1.320 to 1.36 and the temperature remains under 51C degrees
the ram is set at Auto. ratio is set at 1:1
The temperature is not going up when I lower the vcore to 1.320
where do I leave Vcore before testing it for an hour

I have not seen in my Bios where I can control 5-5-5-15-2T or 4-4-4-12-2T
Nothing shows anything like it.
Should I now change the Ram timing when I am told where to do it or test the system at some value of Vcore for an hour first

 

[hokiealumnus]

Timings can be set under "Advanced Chipset Features". Set "DRAM Timing Selectable" to manual, then set the first four timings (tCL, tRCD, tRP & tRAS) to your 5-5-5-15 or 4-4-4-12, respectively. 2T is the command rate and is the last of the settings, just above "PCIe Compliance Mode". Leave the rest of the timings set to Auto.

 

[TungFree]

hokiealumnus,
Great details I will attebd to the Ram timing that way.

What about the Vcore setting? where should I leave it at should I back it down to 1300? or where what is the indicator that says where it should be set to? is it better to have it high or low?

 

[hokiealumnus]

Vcore should be as low as is necessary to maintain stability. Set it at a certain overclock and go into Windows to test with Orthos. Small FFTs will bring CPU errors out faster than the others (and will shoot your temps up more quickly as well; keep an eye on them). If you get errors, or if the PC crashes, raise Vcore up by one notch and retest.

EDIT - I meant to say Prime instead of Orthos. Prime can run 4 threads simultaneously. You'll have to run two instances of Orthos to stress your whole quad.

 

[TungFree]

Thanks this was a fine tutorial and I am informed and successful.
3.204 Mhz speed 4-4-4-12-2T set with 2.0 volts
and a vCore of 1.320 1.300 failed and I upped it at yiour suggestion one notch and now it is stable.
Temps are
52C
47C
47C
52C


update: I lowered the Vdramm voltage to 1.90 at 1.85 it showed errors so I backed it upwards to 1.90 and it is running stably

 

[panzer948]

Hi,

I have the same processor, but with a X38 MB. I have similar questions on the mem. In my bios, you can't set the DDR2 Overvoltage control to an exact number like you can the vcore. You have to bump it up from some set voltage. Problem I have is I don't know where to look to determine what that normal ram voltage is to determine how much to bump it up. I do know that others with the same ram with OC'd machines try to set it to about 2.1volts.

Also, what about the "refresh to ACT Delay" under the mem timings? When switching to manual, I noticed this was 0 and there is no way to set this individual timing to auto like the others.

 

[sutahz]

Originally posted by: panzer948
In my bios, you can't set the DDR2 Overvoltage control to an exact number like you can the vcore. You have to bump it up from some set voltage.

I tried to pvt msg you so this thread doesnt go off topic, but you dont accept pvt msgs panzer. . .
Im guessing the default voltage for ddr2 on that X38 board is 1.8 or 1.9V, so base your overvolt off one of those 2 numbers.

 

[panzer948]

thanks for the reply. I turned PM to on (didn't know that was off to begin with).

I did see in my bios some where it was around 1.88V, so you comment helped to confirm what I was seeing.

 

[aigomorla]

Originally posted by: TungFree
Thanks this was a fine tutorial and I am informed and successful.
3.204 Mhz speed 4-4-4-12-2T set with 2.0 volts
and a vCore of 1.320 1.300 failed and I upped it at yiour suggestion one notch and now it is stable.
Temps are
52C
47C
47C
52C


update: I lowered the Vdramm voltage to 1.90 at 1.85 it showed errors so I backed it upwards to 1.90 and it is running stably

400fsb x 8 @ 1.325-1.375 voltage on cpu for a G0 and 1.375-1.4Voltage on a B3.


Set mem divider @ 1:1 so you get 400mhz ram.


Trust me, you really want 400fsb on these quads if your overclocking.

400fsb x 8 is almost like stepping up 2 steps instead of 1.


Dont worry your Zerotherm should handle the heat load @ these voltages.

 

[BonzaiDuck]

Originally posted by: TungFree
I think you are correct

I cannot find on Abit IP35e any of the following settings to tweek as suggested in the tutorial for over clocking a q6600:
Vanterpool
CPU TM Function
Execute Disable bit
Where to set the timing like 5-5-5-15 and later to lower them to 4-4-4-12
PCI Clock Synchronization
Speed Spectrum

CPU voltage is at 1.3000 v
what should I change it to to start? or leave it at that?
and I need to see what to start The CPU VCore at default is

I have multiplier at 9 and 333 and 1.12 ratio on for 800mhz ram

I'm surprised that a P35 chipset would not have any of these.

BIOS's are organized differently depending on the source: Phpenix, Award, etc. You'll just have to plod through the menus until you find it. But these menus are more or less dynamic -- if you change an item for "memory speed" or "memory timings" from "Auto" to Manual, the latency settings are likely to appear in the menu when they weren't previously visible.

With the Q6600, 1.30V Vcore is in the "ball-park" for getting a stable configuration at 3.0 Ghz and 1,334 Mhz FSB. For my B3-Stepping of the Q6600, my stable setting for 3.0Ghz is more like 1.32V. And I think, when I tried 1.30V, I needed to run the system for two or three hours before a core failed and showed the voltage lacking.

 

[TungFree]

I posted below post, yesterday, in SurpentRoyal's thread for abit ip35-e, but had no reply. I then edited it today and hope to get some input on this here.

SerpentRoyal: Do deep CMOS clear. Remove power from PSU. Remove battery and clear CMOS for 1/2 hour. Reboot and flash to 12 BIOS using the WB switch. Shut down PC and clear CMOS. Boot back to BIOS and load optimized default. Check for boot problem.

I did what you suggested, then tried to reenter all my over clock values as in my profile except fort the ratio of VDram I increased it to 1:1.2 and it does not post. So I had to set the ratio back to 1:1 to post. I tried it from clearing CMOS twice with 1:1.2- no posting

As to the reset I have not had time to test it but I will ( I flashed bios 12 from floppy with WB switch)

Update

After many tries I of #12 Bios, I discovered thatas long as I do not overclock, the rebooting works without needing a reset, but as soon as I introduce the overclocked entries into the the Bios, It boots past the Bios door, into a blank screen, and only a reset boots it into windows.

Of course the inability to boot up when setting the ratio to 1:1.2 is a mystery unless the 3.302x1.2=3.9636 which is not permitting it to overclock that much. No one explained, exactly if that is so and if so do I need to reset the 367 FSB lower to 306 ? until the 306x9x1.2=3304.8

which is my present overclock?

 

[TungFree]

bump

 

[BonzaiDuck]

I'd like to offer more advice, but I'm not familiar with the P35 BIOS.

If you're still having problems getting the system to post, there could be any number of reasons.

If you're over-clocking using a non-1:1 divider, make sure you disable synchronization between the FSB and RAM frequencies, and enter the values manually. I say this only because some people -- with other motherboards -- misinterpret the choice of ratios and synching so that they've effectively over-clocked their RAM way to far for it to work.

The 1.32V VCore seems about right, and actually quite good -- for a 3.2Ghz over-clock, but that's the G0 for you.

For myself, I'm currently using a mixture of over-clock profiles for different purposes. For instance:

3 Ghz, 1:1, FSB = 1,334; DDR = 667; timings 3,3,3,8,1T/2T
2.88 Ghz 4:5, FSB = 1280; DDR = 800; timings 4,3,4,9,1T/2T
[4:5 means CPU_FSB = 320 while RAM = 400]
3.15 Ghz 4:5 FSB = 1,400; DDR = 875; timings 4,3,4,9, 1T/2T
[4:5 means CPU_FSB = 350 while RAM = 437.5]
I had previously used a 3.2 Ghz setting at 1:1, but my B3 VCore of 1.419V is just higher than I want it, and the configuration pushes the memory voltage too darn close to the warranty limit. Meanwhile, I've got to remember to RMA these Crucial Ballistix modules . . .

I've had two causes for "failure to post" recently:

a) burned out RAM from running too close to the warranty voltage
b) weather that makes static charges more likely from walking across the carpet -- touching my metal "power-on" toggle switch. Resetting the system solved (b), and I just wrapped the metal toggle-switch in self-adhesive rubber-tape.

 

[TungFree]

The 1.32V VCore seems about right, and actually quite good -- for a 3.2Ghz over-clock, but that's the G0 for you.

look at my profile the values I use:

Q6600 Go Stepping
3.3ghz 367x9 1.360Vcore 1.95V Dramm 4-4-4-12-2T
ABIT IP35-E board #12 Bios
MSI RX2400PRO-TD256EH Radeon HD 2400 PRO 256MB GDDR2 PCI Express x16 Video Card
Kingston N5 1.8V DDR2 800 2gig
Antec EA500 EarthWatts series 500W Power Supply
SAMSUNG HD501LJ 500GB SATA 7200 RPM
ZEROtherm BTF90 Copper CPU Cooler
SAMSUNG SH-S203B/BEBN 20X SATA DVD Burner
Raptor WD740ADFD 74GB
Gigabyte GZ-FA1CA-ASB 3D Aurora 570 Aluminum Full Tower Case

 

[ahxnguyen]

Originally posted by: TungFree

The 1.32V VCore seems about right, and actually quite good -- for a 3.2Ghz over-clock, but that's the G0 for you.

look at my profile the values I use:

Q6600 Go Stepping
3.3ghz 367x9 1.360Vcore 1.95V Dramm 4-4-4-12-2T
ABIT IP35-E board #12 Bios
MSI RX2400PRO-TD256EH Radeon HD 2400 PRO 256MB GDDR2 PCI Express x16 Video Card
Kingston N5 1.8V DDR2 800 2gig
Antec EA500 EarthWatts series 500W Power Supply
SAMSUNG HD501LJ 500GB SATA 7200 RPM
ZEROtherm BTF90 Copper CPU Cooler
SAMSUNG SH-S203B/BEBN 20X SATA DVD Burner
Raptor WD740ADFD 74GB
Gigabyte GZ-FA1CA-ASB 3D Aurora 570 Aluminum Full Tower Case

TungFree: I'm going to overclock an Intel PC for the first time next week - hardware is on the way from newegg. My goal is to reach 3.2 ghz on a Q6600 GO.

Is it possible to start with default values then manually set divider to 1:1, FSB to 270, CPU multiplier to 9 (default?), Vcore to 1.320 and timings to 4-4-4-12 1T (any performance penalty for 2T?) then start to push FSB up by 5 increments until I reach 3.2 ghz, light stability test along the way?

My hardware consists of :
Thermaltake Soprano mid tower with 2 120 fans, intake and exhaust (18 months old)
PSU Corsair 520w (8 month old)
Lite On Optical IDE DVD RW (used)
Mitsumi Combo floppy + 5 in 1 card reader (used)
MSI P35 Neo 2 -FR (new)
Q6600 GO (new)
Crucial Ballistix Tracer 2 x 1 gig DDR2 800 (new)
Western Digital 160gb 7200 rpm SATA (new)
Cooler Master Hyper 212 120mm fan CPU cooler (new)
Win XP Home OEM (new)

Your input is greatly appreciated.

 

[TungFree]

Is it possible to start with default values then manually set divider to 1:1, FSB to 270, CPU multiplier to 9 (default?), Vcore to 1.320 and timings to 4-4-4-12 1T (any performance penalty for 2T?) then start to push FSB up by 5 increments until I reach 3.2 ghz, light stability test along the way?

I do not know about 1T or 2T
it should do 3.2 without much increase of temps if your cooler is good. when pushing past 3.3 it gets hotter and Vcore needs big increases. At 3.2 you will have no problems if you watch the errors and temps under stress.

I cannot get to change 1:1 into 1:1.2 ratio it does not boot up for me.and am told that for 800 kinds of ram that is the best setting but no one is offering help

 

[BonzaiDuck]

For Intel chipsets and especially the P35, there is apparently no explicit way to change the command-rate. And since it is good procedure for over-clocking anyway, it should be 2T before you do further fine-tuning. In other words, if you reach a stable over-clock with the CMD = 2T, and if it were possible for you to change CMD to 1T, you would probably have to knock up the VDIMM or RAM voltage a notch.

Again, for Tungfree, I'm not familiar with the BIOS screens for your mobo. What's more, I'm not familiar with your Kingston RAM. I won't pass judgment on the Kingstons. But it is possible that you may need to loosen the latency settings if you are running them at an effective speed > their 800 Mhz spec, and you may have to boost the voltage also. This would then generate a possibility that those modules just won't go that far at a 5:6 ratio (my interpretation of your "1.0 : 1.2").

Frankly, I've tried a 5:6 ratio, and although I only imagine a vague and intuitive reason as to why this is so, Anandtech's recent article on OC'ing the QX9650 indicates that Anandtech would only include 1:1 and 4:5 ratios among the three they think are worthwhile, and the third choice they relegate to use with DDR3 memory.

I can also say that my bandwidth benchmark results with 4:5 CPU : RAM are significantly better than with 5:6.

Also, at this point, I'm only guessing that if you choose to use a 4:5 ratio instead of 5:6, you will not be able to push the G0-stepping Q6600 as far unless you replace your memory with something else. But again -- I'm guessing, although I would think the motherboard is not the limitation to your efforts.

With a 1:1 ratio, you can push the G0 as far as it can go, provided the memory timings are loose enough and the Northbridge chipset will handle it. But I've heard that the Intel Northbridge is not as limiting as my nVidia 680i chipset in that regard.

 

[TungFree]

Again, for Tungfree, I'm not familiar with the BIOS screens for your mobo. What's more, I'm not familiar with your Kingston RAM. I won't pass judgment on the Kingstons. But it is possible that you may need to loosen the latency settings if you are running them at an effective speed > their 800 Mhz spec, and you may have to boost the voltage also. This would then generate a possibility that those modules just won't go that far at a 5:6 ratio (my interpretation of your "1.0 : 1.2").

Frankly, I've tried a 5:6 ratio, and although I only imagine a vague and intuitive reason as to why this is so, Anandtech's recent article on OC'ing the QX9650 indicates that Anandtech would only include 1:1 and 4:5 ratios among the three they think are worthwhile, and the third choice they relegate to use with DDR3 memory.

I can also say that my bandwidth benchmark results with 4:5 CPU : RAM are significantly better than with 5:6.

Also, at this point, I'm only guessing that if you choose to use a 4:5 ratio instead of 5:6, you will not be able to push the G0-stepping Q6600 as far unless you replace your memory with something else. But again -- I'm guessing, although I would think the motherboard is not the limitation to your efforts.

With a 1:1 ratio, you can push the G0 as far as it can go, provided the memory timings are loose enough and the Northbridge chipset will handle it. But I've heard that the Intel Northbridge is not as limiting as my nVidia 680i chipset in that regard.

what does loosening timing mean what is an example?

 

[ahxnguyen]

Originally posted by: TungFree

Again, for Tungfree, I'm not familiar with the BIOS screens for your mobo. What's more, I'm not familiar with your Kingston RAM. I won't pass judgment on the Kingstons. But it is possible that you may need to loosen the latency settings if you are running them at an effective speed > their 800 Mhz spec, and you may have to boost the voltage also. This would then generate a possibility that those modules just won't go that far at a 5:6 ratio (my interpretation of your "1.0 : 1.2").

Frankly, I've tried a 5:6 ratio, and although I only imagine a vague and intuitive reason as to why this is so, Anandtech's recent article on OC'ing the QX9650 indicates that Anandtech would only include 1:1 and 4:5 ratios among the three they think are worthwhile, and the third choice they relegate to use with DDR3 memory.

I can also say that my bandwidth benchmark results with 4:5 CPU : RAM are significantly better than with 5:6.

Also, at this point, I'm only guessing that if you choose to use a 4:5 ratio instead of 5:6, you will not be able to push the G0-stepping Q6600 as far unless you replace your memory with something else. But again -- I'm guessing, although I would think the motherboard is not the limitation to your efforts.

With a 1:1 ratio, you can push the G0 as far as it can go, provided the memory timings are loose enough and the Northbridge chipset will handle it. But I've heard that the Intel Northbridge is not as limiting as my nVidia 680i chipset in that regard.

what does loosening timing mean what is an example?

An example is "4-4-4-12 is loosened to 5-5-5-15".
Correct me if I'm wrong.

 

[TungFree]

MadScientist: I don't know how you determined that your CPU needs 1.36Vcore to run stable at 3.3 Ghz. My Q6600 GO needs only 1.2575Vcore at 3.3 Ghz. Did you test your CPU with Prime95 v2[5.5, Small FFts setting with the ram set at loose timings, 5-5-5-15-2T and a 1:1 divider?

No I set the timing at 4-4-4-12-2T and tested the 3.3 until it stopped the errors.
So what is the propper way to do it set it at 5-5-5-15-2T and a 1:1 divider?
The 1:1.2 was SerpentRoyal's recommendation to me and yes it shows 880 Ram speed before I try to boot. So I am willing to set it at 1:1 ratio or else it crashes, unless with smaller Vcore and your idea of how to use the 5-5-5-15-2T and a 1:1 divider for testing, and in the end after no errors for 8 hours to reduce the 4-4-4-12-2T without testing?



Update: ran 5-5-5-15-2T and a 1:1 divider for testing
tried 1.300 V core... and 1.8 DramV ....crashed on Prime95 v25.5, Small FFts
tried 1.320 Vcore and 1.85 Vdram ..... crashed on Prime95 v25.5, Small FFts
tried 1.340 Vcore and 1.85 Vdram ..... crashed on Prime95 v25.5, Small FFts
tried 1.340 Vcore and 1.90 Vdram ..... crashed on Prime95 v25.5, Small FFts
tried 1.340 Vcore and 1.95 Vdram ..... errors no crash
tried 1.360 Vcore and 1.950 Vdram ..... No errors no crash after 2 hours still testing

No errors after 8 hours