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Intel P4 heatsink on a Nvidia 7900GS video card

post #1 of 21
Thread Starter 
I already have another thread going about this, but I thought I should post it in here as well.

I just completed this home made mod this afternoon

Max temp is 58c with a 1.5v Mod.

Original Thread:
http://www.overclock.net/nvidia/1903...nk-7900gs.html

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post #2 of 21
sweet, I'm gonna try that with a s754 HSF on my x1600 once I get a new card. just in case...but I'm gonna have to get some ramsinks too. What is stock voltage and heats?
post #3 of 21
Thread Starter 
My stock voltage was at 1.2v, heat was usualy arround 60. I did the volt mod at 1.4v then heat was arround 75 to 80 (stock heat sink)

Then I setup my Intel P4 Heat sink and increase the voltage to 1.5v, my max temp now is 58c.
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post #4 of 21
nice

not bad temps either for 1.5v
    
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post #5 of 21
yeah, that's a nice voltage increase there, if I could get some more volts to my x1600, I could probably get into the 750MHz core range with this type of cooling.
post #6 of 21
by the was thestef , what speeds have you hit

my GS is at 1.5v too and I it 720 / 2020 3d mark 06 stable

I hit 850 core once but it reset after 2-3 mins of browsing the internet
    
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post #7 of 21
Thread Starter 
Quote:
Originally Posted by born2killU View Post
by the was thestef , what speeds have you hit

my GS is at 1.5v too and I it 720 / 2020 3d mark 06 stable

I hit 850 core once but it reset after 2-3 mins of browsing the internet
My core is presently at 680Mhz and my system is fully stable. I ran ATI tool for almost 40 minutes and ran a 3Dmark2006 bench and got 5221. My system seemed stable arround 690, but I lowered it another 10 points because I don't want any problems when gaming.

As far as memory goes its at 863Mhz.... I'm using ATItool for my OC... I'm guessing the speed displayed is the actual memory speed, but since its DDR memory its probably 863 x 2 =1726Mhz ??

I'll try the 1.55V mod eventually

Bench mark result
http://service.futuremark.com/orb/re...=0&UID=9331669
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post #8 of 21
well to get memory higher you gota do the memory mod the gpu mod alone wont help the memory. I havet done the gpu mod and i can get my core to 660 but i drop it to 615 for games. And iv done the memory mod 2.23 and got it up to 920mhz game stable I get 6070 on 3dmark 06. Im using a nv silencer 5 as my cooling gpu idles at 40c and load is about 50c.
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SABERWOLF
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XEON-WOLF
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Intel Core i7-6800K MSI X99A GAMING PRO CARBON EVGA GTX 1080 FTW Hydro Copper G.SKILL TridentZ Series 
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Samsung EVO 850 500 EK-SBAY Dual DDC 3.2 PWM Serial Alphacool NexXxoS ST30 Full Copper Radiator 360 Hardware Labs Black Ice SR2 Multiport Black Car... 
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post #9 of 21
yeah when im scrimming or something I will run around 675 - 700 core just to be sure its all good
    
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post #10 of 21
Thread Starter 
This morning I increased the Voltage to 1.55v and I'm running ATI tool, I think I found my max core at 717Mhz, I haven't had any errors for almost 10 minutes. I'll probably bring it down to 705 Mhz or 710Mhz to make certain I don't have any gaming problems. My max temp is 62c... one thing I nodiced is that ATItool heats up the core a lot more then any games I've played so far, the max temp I've seen while gaming was arround 50 to 55c.

One really weird thing I should mention is that my voltage is fluctuating from 1.55v to 1.56v??? has any one experienced this? When I initially increased my voltage incrementally from stock 1.2v to 1.4v and then to 1.5v, the voltage was fully stable.... I'm not sure if this fluctuation will cause problems ??????
My AMD/ATI build
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CPUMotherboardGraphicsRAM
AMD FX-8350 (4..60Ghz) Gigabyte 990FXA-UD5 XFX R9-290 G.SKILL 8GB DDR3-1600Mhz 7-8-7-24 
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OCZ Vertex 2 Windows 7 Home 42 Inch Panasonic 1080p Plasma Antec Truepower 750W 
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My AMD/ATI build
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CPUMotherboardGraphicsRAM
AMD FX-8350 (4..60Ghz) Gigabyte 990FXA-UD5 XFX R9-290 G.SKILL 8GB DDR3-1600Mhz 7-8-7-24 
Hard DriveOSMonitorPower
OCZ Vertex 2 Windows 7 Home 42 Inch Panasonic 1080p Plasma Antec Truepower 750W 
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