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MSI 6950 TFIII PE/OC- testing w/ CL3P20 - Page 5

post #41 of 98
You might of seen my other thread, but what is that GPU only WB you are using? Will reference 6950 GPU only blocks fit? And how much was that?
    
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post #42 of 98
Thread Starter 
I am using a MCW60 from Swiftech.. and the standard G92 bolt-down hardware for the 8xxx's Nvidia fits the 6950 perfectly! These usually run between 40-60$ for the block depending on where you get them.

*dropped idle temps around 15c or so.. and load temps better than 20c
post #43 of 98
Quote:
Originally Posted by CL3P20 View Post
I am using a MCW60 from Swiftech.. and the standard G92 bolt-down hardware for the 8xxx's Nvidia fits the 6950 perfectly! These usually run between 40-60$ for the block depending on where you get them.

*dropped idle temps around 15c or so.. and load temps better than 20c
Cool, reason being is my top card sucks in the bottom's exhaust.
    
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post #44 of 98
Quote:
Originally Posted by Kung Pow View Post
I wanted to get the 6950 DirectCUII because most people said it overclocks better than the Twin Frozr III.
But unlockprobability is lower.
And after I saw this I am back on TWFIII

Also a full unlock of the Twin Frozr III is interesting ...I will definately come back at you when I got mine^^
Check back on the link in my sig when you're done

Well , even my 650W supply started to crackle and that would only happen on higher volts and higher clocks, talking 960 + at 1.26Vcore+
Anything lower = silent PSU running
The way I look at it , power tune has its own limitations .. but even a +20% powertune setting should not result in such a dramatic pull on the +12V rail ? Or am I missing something ?

My PSU's powering :
2 red CCFLs
2x220MM fans..
4x 120mm fans ..
a low power mobo..
my cpu @ 3.8GHz @ 1.38Vcore
8GIGs of ram.
3Hard drives..
some USB stuff.
A 6950 OC'd to 935/1490 @ 1.245
post #45 of 98
Thread Starter 
Finally got around to RT mod for switching frequency.. small improvement on current supply, lowering audible squeal under load. Details below..

pin33 - RT
stock @ 30k ohms
pencil to 17k ohms

*physical layout is not the same, but pinout of the IC is.. so just follow the IC orientation for this mod.

Attachment 222146


I will have to test for further improvements with the TPQ1.2kw again.. inductors are dealing with a .5v fluctuation in voltage supply due to the poor input on the +12v rail from my TX650 [once clock speeds are in excess of 1ghz core, with 1.3v GPUv].
post #46 of 98
lol hey CL3P20 - is your inbox full?
    
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post #47 of 98
Thread Starter 
Quote:
Originally Posted by BallaTheFeared View Post
lol hey CL3P20 - is your inbox full?
yeah. YGPM
post #48 of 98
Thread Starter 
switching freq mod worked pretty good actually.. brought stability to 3D'05 and '06 at 1050mhz core/1375mhz mem

GPUv- 1.38v real [1.35v in AB + OCP mods and RT mod]
AUX/vtt - 1.18v real [+2mv in AB]
vMEM - 1.62v real [+2mv in AB]

idle temp - 32-35c
load temp - 40-42c
..still holding ~8c delta using MCW60

SS for new '05 score

Attachment 222297

*hunting down some more 16v caps for input phases..gonna grab VR to hardmod RT as well
post #49 of 98
Jeesh 34k with water is pretty dam impressive cant wait for cold results.


how are you measuring switching freq. Ive been reading a few data sheets and it looks like on most cards it is set with one resistior is this true or am I reading the sheets wrong??? Or do you have super secret tools in your garage?
    
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post #50 of 98
Quote:
Originally Posted by reggiesanchez View Post
Jeesh 34k with water is pretty dam impressive cant wait for cold results.


how are you measuring switching freq. Ive been reading a few data sheets and it looks like on most cards it is set with one resistior is this true or am I reading the sheets wrong??? Or do you have super secret tools in your garage?
Each datasheet should have a graph that shows what the switching freq is for set resistance.


Should look something like this.
    
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