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Need expert overclocking help ,q9650 780i ftw - Page 5

post #41 of 59
Your'e getting into some dangerous voltages. VTT at 1.4 reported to kill 45nm quads, and that's alot of NB volts. I hope you have that NB actively cooled. 1.42 is alot of VCore as well, I wouldn't do that without a water loop. Even then your risk ^^^
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post #42 of 59
Thread Starter 
Quote:
Originally Posted by 2thAche View Post
Your'e getting into some dangerous voltages. VTT at 1.4 reported to kill 45nm quads, and that's alot of NB volts. I hope you have that NB actively cooled. 1.42 is alot of VCore as well, I wouldn't do that without a water loop. Even then your risk ^^^
Im actually at 1.4375 now vcore right now, still 1.4v nb, 1.5v sb.

The moderator robo at evga forums did a oc guide, and anything over 1700qtf should get 1.4 vtt ,according to his guide .

I finally got a 16 hour p95 stable oc 4050mhz. So now Im trying to slowly step down the voltages and retain stability/fsb.

I have water cooling on the cpu, but it still got as high as 69c with 1.46 vcore yesterady(I have my shutdown at 70c).

Right now Im at 63 58 61 59, p95 40 minute stable.

Aida65 says SPP 54c mcp 55c.. How are those temps? I know that the 780i runs notoriously hot .

Taking suggestions .
Edited by bloomstomb - 4/15/11 at 10:06am
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post #43 of 59
Thread Starter 
One thing I want to mention. I have a selection "without vdroop" which I leave alone (currently it is with vdroop).

Forexample, right now according to cpuz and aids (man they gotta change that stupid name) Vcore shows 1.328v, and I have vcore set to 1.4 in the bios.

So i am getting substantial vdroop with vcore. So I think every case is different right?

Aida is pretty spot on with FSB VTT, at 1.392 v (bios 1.4v) Dimm 2.096v (bios 2.1v),but vcore is off by a good margin.
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post #44 of 59
Thread Starter 
Man, I knocked down the fsb to 1700qft, its incredible how much less vcore that requires. At 1800, its almost immediate worker stoppages at 1.4v vcore,

I was able to get it fully stable with 1.43 vcore, but I agree thats too high, especially with summer around the corner.

But with a little less demand on the fsb mhz, I am dropping the vcore like crazy (at 1.35vcore now) and still getting 30 minute passes on p95. Ill keep dialing the vcore down till I get worker stoppages/bsods, then Ill start increasing it by a few tenths of a volt and doing longer tests (1+ hours).

Oops p95 just failed at 1.35 volts as I was typing this.. worker one as usual. He is the weak link. I wish I could reprimand him some way. Worker 2 is the next lazy sob on my list. 3 and 4 are exemplary.

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post #45 of 59
Quote:
Originally Posted by 2thAche View Post
Your'e getting into some dangerous voltages. VTT at 1.4 reported to kill 45nm quads, and that's alot of NB volts. I hope you have that NB actively cooled. 1.42 is alot of VCore as well, I wouldn't do that without a water loop. Even then your risk ^^^
It's over 1.4 that does that. Not sure on the 780i but an x38's tjmax is 92C; 80C is considered to be max safe though.
Edited by PoopaScoopa - 4/15/11 at 12:18pm
post #46 of 59
Quote:
Originally Posted by bloomstomb View Post
Man, I knocked down the fsb to 1700qft, its incredible how much less vcore that requires. At 1800, its almost immediate worker stoppages at 1.4v vcore,

I was able to get it fully stable with 1.43 vcore, but I agree thats too high, especially with summer around the corner.

But with a little less demand on the fsb mhz, I am dropping the vcore like crazy (at 1.35vcore now) and still getting 30 minute passes on p95. Ill keep dialing the vcore down till I get worker stoppages/bsods, then Ill start increasing it by a few tenths of a volt and doing longer tests (1+ hours).

Oops p95 just failed at 1.35 volts as I was typing this.. worker one as usual. He is the weak link. I wish I could reprimand him some way. Worker 2 is the next lazy sob on my list. 3 and 4 are exemplary.

What are your load Voltages?
    
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post #47 of 59
Thread Starter 
Quote:
Originally Posted by turrican9 View Post
What are your load Voltages?
Load voltages under Aida showed everything pretty much the same as what I have below, except for vcore which was drooping to 1.328v from 1.43v bios.
I have with vdroop. If I had tested this WITHOUT Vdroop(an option I have), I have a feeling my cpu would be fried.
Even right now, during p95 small fft testing, load vcore is 1.288-1.296, from bios 1.35625.

Heres the situation so far,

I got a stable overclock at 4050 mhz (1800fsb) 15 hour stable (had to do some work on the pc so had to end test) with:

1.43 vcore
1.40 nb
1.50 sb
I could not lower ANY of these or it would fail p95, bsod, reboot and a bunch of other bad things.

It was stable as a rock, but the cpu was being pushed to some high temp limits , 65-69 (69 on 2 occasions).

So I got my 1800 oc as I wanted. I have it when I want/need it for something, thanks for your help.


For a 24/7 Im shooting for 1700 qft. Its noticably much much easier to achieve this with stability. Ive been testing all day , stepping down voltages from the successfull 1800 qft oc.

Right now I have it at :
1.35625vc (3 hour stable) 1.35 failed.
1.25 vtt (1 hour stable)

ATM Im testing 1.17 vtt for 1 hour. Ill keep stepping down by 1 step every hour as loong as it passes .

Temps right now dont get higher than 55c on small fft's.

Ill start working on SB next.
Edited by bloomstomb - 4/15/11 at 7:00pm
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post #48 of 59
Thread Starter 
Quote:
Originally Posted by PoopaScoopa View Post
It's over 1.4 that does that. Not sure on the 780i but an x38's tjmax is 92C; 80C is considered to be max safe though.
Im not sure my tjmax, but I have heard the 780is normaly run hotter.

I have a pretty good case (pcp80) with alot of airflow. I also have a clipon fan blowing directly on the aluminum cooler that came with the mobo.

It does get hot thoe.
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CPUMotherboardGraphicsRAM
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Hard DriveHard DriveOptical DriveCooling
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post #49 of 59
Thread Starter 
Quote:
Originally Posted by PoopaScoopa View Post
It's over 1.4 that does that. Not sure on the 780i but an x38's tjmax is 92C; 80C is considered to be max safe though.
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
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Lian-Li pc-p80 check check Bose sound system 
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
CaseMouseMouse PadAudio
Lian-Li pc-p80 check check Bose sound system 
Audio
Bose sound system 
CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
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Lian-Li pc-p80 check check Bose sound system 
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
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windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
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Lian-Li pc-p80 check check Bose sound system 
Audio
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
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post #50 of 59
Thread Starter 
Just got stable 1 hour 20 minutes with 1.17 vtt at 1700 qft.

Its incredible that at 1800 qft anything under 1.4 vtt fails almost immediately.

Talk about not scaling up efficently heheh. Therres some serious diminishing returns with the 780i board when you start pushing the fsb beyond 1700.

I have a feeling 1.10 vtt might be just fine too and thats the lowest I can go.. testing that now, 7 minutes stable small fft.
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
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windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
CaseMouseMouse PadAudio
Lian-Li pc-p80 check check Bose sound system 
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
CaseMouseMouse PadAudio
Lian-Li pc-p80 check check Bose sound system 
Audio
Bose sound system 
CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
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Lian-Li pc-p80 check check Bose sound system 
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CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
CaseMouseMouse PadAudio
Lian-Li pc-p80 check check Bose sound system 
Audio
Bose sound system 
CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
CaseMouseMouse PadAudio
Lian-Li pc-p80 check check Bose sound system 
Audio
Bose sound system 
CPUMotherboardGraphicsRAM
I7 2600k Sandy Bridge@4200 mhz , 1.24 v stable P67 FTW 3x EVGA gtx 480 hydrocooled  ddr3 2133 gskill ripjaws. 
Hard DriveHard DriveOptical DriveCooling
2x 300 gig velociraptor in Raid 0 for strorage,  120 gig corsair SSD boot drive dvd r/rw 480 mm bix radiator dedicated to video cards, 1... 
OSMonitorKeyboardPower
windows 7 x64 3x dell 2408wfp check Toughpower 1200watt 
CaseMouseMouse PadAudio
Lian-Li pc-p80 check check Bose sound system 
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