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1.4vcore too much on a H20 cooled Q9650?

Cool (pardon the pun), You've got it working. Congratulations.

I know Intel say that the max 'safe' voltage is 1.365V (from memory), so your vcore is a bit high.

Have you tried messing with other settings in the BIOS to see if you can drop the vcore, but retain the same speed. I'm sure others will be able to suggest BIOS settings.

It might be a good idea to post the BIOS settings plus your full system spec.

btw Is the vcore of 1.4V from the BIOS or CPU-Z?

Edit: I've just checked the Intel datasheet; the max. recommended vcore is 1.3625V (I was pretty close with 1.365V).
 
4.275Ghz on a MIIF bios 1901 ran prime for 6 min and 1 core failed @ 1.38v

I'm trying to follow this guide.

So far no luck with 500fsb & 8multi

EDIT: seems its the raw cpu voltage that's holding it back

testing 500fsb 8multi @ 1.4v prime small FFT's, if it passes I'll test for subsystem stability by the large FFT's

EDIT2: 1.4v in bios and pegged solid reading CPUz
 
I'd assume you need to fine tune some motherboard voltages, like VTT + GTLs & NB + GTLs.

Try with a lower multi & see if it's stable.

Small FFTs for CPU.
Blend/Large for mobo.

I personally had my Q9650 @ 9x475 @ 1.3v...i had CPU stable, but eventually i gave up on getting FSB/NB stable at 475.
 
Originally posted by: BTRY B 529th FA BN
4.275Ghz on a MIIF bios 1901 ran prime for 6 min and 1 core failed @ 1.38v

I'm trying to follow this guide.

So far no luck with 500fsb & 8multi

EDIT: seems its the raw cpu voltage that's holding it back

testing 500fsb 8multi @ 1.4v prime small FFT's, if it passes I'll test for subsystem stability by the large FFT's

EDIT2: 1.4v in bios and pegged solid reading CPUz
Click to expand...

60C at load with 4.275GHz. Your loop is doing its job well. :thumbsup: for liquid cooling. Sorry, I can't help you with the o/c - you probably know a lot more about this than I do.

However, with a couple of weeks of tweaking and with help from the guys on this forum, I'm sure you will get there in the end.
 
Originally posted by: daw123
Originally posted by: BTRY B 529th FA BN
4.275Ghz on a MIIF bios 1901 ran prime for 6 min and 1 core failed @ 1.38v

I'm trying to follow this guide.

So far no luck with 500fsb & 8multi

EDIT: seems its the raw cpu voltage that's holding it back

testing 500fsb 8multi @ 1.4v prime small FFT's, if it passes I'll test for subsystem stability by the large FFT's

EDIT2: 1.4v in bios and pegged solid reading CPUz
Click to expand...

60C at load with 4.275GHz. Your loop is doing its job well. :thumbsup: for liquid cooling. Sorry, I can't help you with the o/c - you probably know a lot more about this than I do.

However, with a couple of weeks of tweaking and with help from the guys on this forum, I'm sure you will get there in the end.
Click to expand...

Hah, thanks Daw 😀 Hows the new system doin?

testing 480fsb @ 1.4v 8.5multi atm
 
Originally posted by: BTRY B 529th FA BN

Hah, thanks Daw 😀 Hows the new system doin?

testing 480fsb @ 1.4v 8.5multi atm
Click to expand...

Problems with my car, which I've only started experiencing over the last couple of weeks.

It could be expensive to fix. I've got it booked into a garage on Thursday. Hence, I'm waiting to find out how much my car will cost before I start buying the components. Plus its due its MOT this month and I know that the problem will fail the MOT (which costs $80). The brake on the n/s front is making scraping noises under braking, like the calliper is binding or something has come loose and jammed between the pad and disk. Either way, because its a Subaru WRX parts are expensive; a new calliper will cost about £300 ($450).

I've also got to buy tax for the car this month at $180 and renew the subscription on my tracking system (another $200). All in all a very expensive month for my car, which is money I don't want to spend (I would rather spend it on my PC).

If its a cheap fix on the car, then I'll start buying stuff. If not, then I'll have to wait (I wished I was rich 🙂)
 
Too bad we don't enjoy cars as much as we enjoy our computers, LOL

currently at 1.368v stable @ 480fsb & 8.5 multi, i'll fill you in with the bios readings in a few. passed 17min of Large FFT's currently doing small FFT's and is looking good
 
with ~ 20min of large FFT's and ~ 20 min of small FFT's things went smooth at these settings

vcore: 1.36875v
PLL: 160600v
FSB termination: 1.36500v
NB: 1.51075

480fsb & 8.5multi
 
Originally posted by: BTRY B 529th FA BN
Too bad we don't enjoy cars as much as we enjoy our computers, LOL

currently at 1.368v stable @ 480fsb & 8.5 multi, i'll fill you in with the bios readings in a few. passed 17min of Large FFT's currently doing small FFT's and is looking good
Click to expand...

I like cars. It's just that I like my PC more.

Have you checked out the pics of the new Lambo Reventon in the 'The Garage'. Christ, that it is one gorgeous car. Why can't mainstream manufactuers come up with designs like that?
 
Originally posted by: BTRY B 529th FA BN
with ~ 20min of large FFT's and ~ 20 min of small FFT's things went smooth at these settings

vcore: 1.36875v
PLL: 160600v
FSB termination: 1.36500v
NB: 1.51075

480fsb & 8.5multi
Click to expand...

Run it overnight.

Wondering - you're selling an i7? Why?
 
Originally posted by: Dadofamunky
Originally posted by: BTRY B 529th FA BN
with ~ 20min of large FFT's and ~ 20 min of small FFT's things went smooth at these settings

vcore: 1.36875v
PLL: 160600v
FSB termination: 1.36500v
NB: 1.51075

480fsb & 8.5multi
Click to expand...

Run it overnight.

Wondering - you're selling an i7? Why?
Click to expand...

Ran IBT (Y), 1, 5 (passes) passed with flying colors. Even lowered the PLL to about 1.55xx IBT passed again.

I can either keep my i7 or keep the new Q9650 I have on the way. I may just keep both and sell off my 8400. But I don't see myself building a new machine with it soon. Even though mb and memory prices are looking more attractive, i'd still need an Enermax Revo for it, vid card, case, and H20 parts which is way more than just a new Q9650...
 
IBT unfortunately isn't that great at testing overall stability tho it is decent at testing the CPU. I usually use IBT for a quick run of 10 just to see if i am in the Ballpark, then an hour of OCCT Medium and a follow up of a few hours of Prime Blend if I feel it is good to go.

Larry
 
Very true.

IBT is good for getting temps high, but Blend/Large will fail where IBT passes if it's a slight instability with the mobo, especially FSB/NB with high FSBs & quads.

IBT is good for CPU & RAM though.

I personally use both.

And then i do some gaming.
 
failed 480 OCCT 46 min within the test, ... back to 450 🙁

although it passed 450 OCCT 1hr med - still the sucko ... not sure if it's either the CPU or subsystem with OCCT
 
i just dont understand one point
go and search you tube for ln2 cooling
and u will find tons of videos being overclocked of e8600 , p4
they all have vcore like arnd 1.6v ~ 1.8

so does this mean that as long as we have temps under control we can even have 110v ??

 
I found lately that the Mosfet cooler directly above the cpu on my board gets pretty warm, I put a 60mm Sanyo Denki,( loud lil bastage) over it drawing air Off the mosfet which brought the temps down about 5c. Seemed to help a bit.

IMHO, The Heatsinks on the P5Q-D are insufficient for running a higher fsb with a quad without some serious fan action on the sinks, as well as replacing the suck thermal pads under the NB and SB sinks with paste. Thinking about throwing my Swiftech chipset cooler back on the NB but may just let it run with the 80mm fan I have blowing on the NB, the 60mm on the Upper Mosfet and the 92mm fan I have blowing over the SB/Raid card. I can only imagine hot hot the whole setup would be were I not running a Water Block on both the GTX 260 and the CPU. Kinda highly doubt if I were Air cooled only that I would be running at 488 fsb with this chip.
I feel the chipset is limited on this board as I have no problems running say 494fsb with the cpu or maybe more, but stability is a real bear over 486fsb and up. Darn board is holding back my OC! I won't swap it out tho as it runs my scsi Raid card flawlessly which is important to me/shrug. Killer thing is tho that I am only at 1.31v for the cpu, 1.56 for PLL, 1.32 VTT, 1.36NB etc.. pretty low volts, but try getting the darn thing stable too much higher, just not happening no matter the voltages used, gtl's changed etc... 🙁

Larry
 
No, there is a safe limit to the cpu before you accelerate killing it. those are suicide runs... not 24/7 use which is where it's at. Those people are like 1/4 mild drag car racers. There is a post somewhere in here of the i7 chip vcore being 1.55 max. I think Aigo from Case & Cooling posted it. He's a great authority when it comes to stuff like that...
 
Originally posted by: Big Lar
I found lately that the Mosfet cooler directly above the cpu on my board gets pretty warm, I put a 60mm Sanyo Denki,( loud lil bastage) over it drawing air Off the mosfet which brought the temps down about 5c. Seemed to help a bit.

IMHO, The Heatsinks on the P5Q-D are insufficient for running a higher fsb with a quad without some serious fan action on the sinks, as well as replacing the suck thermal pads under the NB and SB sinks with paste. Thinking about throwing my Swiftech chipset cooler back on the NB but may just let it run with the 80mm fan I have blowing on the NB, the 60mm on the Upper Mosfet and the 92mm fan I have blowing over the SB/Raid card. I can only imagine hot hot the whole setup would be were I not running a Water Block on both the GTX 260 and the CPU. Kinda highly doubt if I were Air cooled only that I would be running at 488 fsb with this chip.
I feel the chipset is limited on this board as I have no problems running say 494fsb with the cpu or maybe more, but stability is a real bear over 486fsb and up. Darn board is holding back my OC! I won't swap it out tho as it runs my scsi Raid card flawlessly which is important to me/shrug. Killer thing is tho that I am only at 1.31v for the cpu, 1.56 for PLL, 1.32 VTT, 1.36NB etc.. pretty low volts, but try getting the darn thing stable too much higher, just not happening no matter the voltages used, gtl's changed etc... 🙁

Larry
Click to expand...

That's where I think the 2oz copper from the Gigabyte UD3P boards are helping. I too have active cooling on the NB and that entire area from a 120x38mm fan and things are just not stable. Real problem is how to tell something fails cause of thermals or not. I just don't have a NB temp monitor to make the readings.
 
I use a laser temp and take reading while running stress tests/gaming etc. I do agree that a better sink/s would help quite a bit tho. I bet I have 1 of the Loudest water cooled setups around 🙁

Larry
 
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