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7950GT volts up, temps down?

post #1 of 6
Thread Starter 
eVGA 7950GT KO SC, stock 600/725, autoclocks to 645/826

using NiBitor, added .05v, from 1.45 to 1.5

result: 648/841, but memory unstable, reduced to 825

the funny thing is the card was 88-89 C. under load, now barely breaks 80 C. with higher voltage!

anyone else seen this kind of effect?
Dell E510
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CPUMotherboardGraphicsRAM
Pentium 4 Dell Inc. 0RD203 eVGA GeForce 7950 GT KO SC 2GB DDR2-SDRAM 
Hard DriveOptical DriveOSMonitor
WD WD2500KS LITE-ON DVD-RW XP Pro SP2 Sharp LL-T18A1 
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Hiper 580 Dell OEM 
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Dell E510
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Pentium 4 Dell Inc. 0RD203 eVGA GeForce 7950 GT KO SC 2GB DDR2-SDRAM 
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WD WD2500KS LITE-ON DVD-RW XP Pro SP2 Sharp LL-T18A1 
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Hiper 580 Dell OEM 
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post #2 of 6
buy a VF-900.
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Current from '11
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256GB M4, 120GB Intel 320 Asus DVD x24/48 drive 960mm water loop Win 7 64bit 
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post #3 of 6
Quote:
Originally Posted by nhobo View Post
eVGA 7950GT KO SC, stock 600/725, autoclocks to 645/826

using NiBitor, added .05v, from 1.45 to 1.5

result: 648/841, but memory unstable, reduced to 825

the funny thing is the card was 88-89 C. under load, now barely breaks 80 C. with higher voltage!

anyone else seen this kind of effect?
Hi and welcome to the forum.Plz fill up your system specs on top of the page in the user cp.And you need better cooling in that card.Mine only reach like 40c volt mod.And mine volt mod is not in bios is with the circuit pen and pencil.I have the 1.55 and the 2.25 mod.
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My System
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CPUMotherboardGraphicsRAM
E6850 SLA,G0,@3.7 P5N32 SLi/680iSB=Jing ting/nb=spirit II[1203]bios] MSI 470 GTX[order on his way] 4 gig ocz Reapers pc 8500 
Hard DriveOSMonitorKeyboard
2 WD 250gig 16mb/raid 0\1 WD640 AALS 32MB win xp pro sp3/Windows 7 Beta LCD,22"=Samsung 2MS,226BW,52"samsung LN5A550 Thermaltake xaser 
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post #4 of 6
Thread Starter 
sorry if I wasn't clear -

when I upped the voltage .05 the temp DROPPED about 10 C.

maybe the extra .05v makes the fan more efficient?
Dell E510
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Pentium 4 Dell Inc. 0RD203 eVGA GeForce 7950 GT KO SC 2GB DDR2-SDRAM 
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WD WD2500KS LITE-ON DVD-RW XP Pro SP2 Sharp LL-T18A1 
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Hiper 580 Dell OEM 
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Dell E510
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CPUMotherboardGraphicsRAM
Pentium 4 Dell Inc. 0RD203 eVGA GeForce 7950 GT KO SC 2GB DDR2-SDRAM 
Hard DriveOptical DriveOSMonitor
WD WD2500KS LITE-ON DVD-RW XP Pro SP2 Sharp LL-T18A1 
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Hiper 580 Dell OEM 
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post #5 of 6
The temperature probe within the core of the GPU is designed to operate at a specific voltage. When you alter the voltage going into the core of the GPU, you are also altering the voltage at which the temperature probe operates at. Thus the temperature probe can no longer be considered a precise measurement for GPU temperature. This is where your fluctuation is coming from.
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post #6 of 6
I have a 7950GT Evga @ 550/700 (550/1400) stock ..
I oc'ed it a bit to 560/840 and it was still stable .
I'm going to put a 120mm side case fan thats gonna basically hit the GPU since I'm not planning on modding things like that. is it possible to overmolt for any better things?

mine is 50-55c idle .. maybe 70c max full load i cant recall
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Amd Opteron 165 "CCBBE 0610 DPMW" DFI Lanparty UT nF4 SLI-DR Expert eVGA 7950GT 256mb G.Skill F1-4000USU2-2GBHZ [2x1GB] (UCCC) [3-4-4-8] 
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DFI Opteron LYCAN
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WD 2x250gb + 200gb Sata NEC DVDRW Err Acer al1916w 
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Logitech mx3100 laser mouse Antec TruePower-II 430w :Replacing: soon Antec 900 Logitech mx3100 wireless 
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