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5850 oc question

post #1 of 11
Thread Starter 
simple question

does raising the voltage of the card also helps oc memory clocks or only the core?

cuz as far as I rememember ..when i was overclocking on stock voltage i couldnt get it past 1200 ....and now im testing with 1.218v and 1250+ is no problem
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post #2 of 11
1200 not enough?dont go over 1200mhz for mem..its ok..

try overclock your gpu..try 1000mhz gpu..dont touch mem ..1200 is very good..

and voltage already help your mem for overclock..not only gpu..
    
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post #3 of 11
Voltage will increase your clocks when you seem to hit a wall at around 875mhz core and/or 1100 mhz memory.
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post #4 of 11
Thread Starter 
Im already at 1.218v ...dont really wanna go higher then that

core is already at 901 (I get errors in gpu tool at 920)
and I got memory to 1255 (noticed some screen glitches at 1280)

3d mark vantage score is 18118 thats preety good right?
and temps are around 75°c at load
Edited by Jaromir - 3/30/11 at 4:59pm
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post #5 of 11
Quote:
Originally Posted by Jaromir View Post
Im already at 1.218v ...dont really wanna go higher then that

core is already at 901 (I get errors in gpu tool at 920)
and I got memory to 1255 (noticed some screen glitches at 1280)
Ditch the stock heatsink and get an MCW80 waterblock man, with that added and some heatsinks on your memchips and you could run all day at 1.4v all day and stay under 40C - not that you'd really need to stay at 1.4v daily

Quote:
Originally Posted by Jaromir View Post
3d mark vantage score is 18118 thats preety good right?
and temps are around 75°c at load
Total score or GPU score?

For reference, with the same card at 950/1200, I got a 3dmark vantage gpu score of 17899.
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post #6 of 11
Thread Starter 
GPU score



and ...nah I dont have watercooling ..it would be 2expensive + its mATX setup
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post #7 of 11
Quote:
Originally Posted by Jaromir View Post
Im already at 1.218v ...dont really wanna go higher then that

core is already at 901 (I get errors in gpu tool at 920)
and I got memory to 1255 (noticed some screen glitches at 1280)

3d mark vantage score is 18118 thats preety good right?
and temps are around 75°c at load
gpu temp nearly done..its ok..b ut dont go over 80c..

and in 5xxx series vrms warmıng much..whats about your vrm temps?be carefull to them..
    
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post #8 of 11
Quote:
Originally Posted by Jaromir View Post
GPU score



and ...nah I dont have watercooling ..it would be 2expensive + its mATX setup
That's good. It's only about P1500 short of a GTX295.
post #9 of 11
Thread Starter 
dunno about the vrm temps ...theres no sensor there
I guess it should be fine ...cooler on this card has a nice heatsink on them and vent blows air over it

Does anyone know if memory clock not droping @ idle with overclocked cards has been fixed yet in newer versions of cata drivers?
as far as I remember with all versions that were 10.5+ memory clock never droped @ idle?
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post #10 of 11
bro i thin in gpu-z vdd1,vdd2 and vdd3 temps are your vrm temps..check this..

gpu-z showing your vrm temp in 5xxx series card..

and 5850 vrms will be warmer than your gpu..
    
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