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post #1191 of 1336
I have some mem control IC's.. I think 1.8v is a good starting point for final rectified voltage Heres a look at some of what I got...this is 'where' I go to when I need stuff for "GPU crack".






I'll see if I can read some of these IC#'s... looks like 4-5, 8x leg vMEM controllers outta the group.
post #1192 of 1336
Nice arsenal of components you got there!
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post #1193 of 1336
Yea, post up some IC #'s when you can.

Does the board need fets or can we just use caps and inductors?
    
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post #1194 of 1336
Tnx vDrop ...counted another 38x caps, currently installed on my 3x bench GPU's..and 6x more inductors.. I need more GPU's to get rid of some of this stuff


depends on what we need want to accomplish... If your looking for adjustable voltage or actual core voltage, then yes...fets will be needed to rectify the voltage..and a controller to run them [fets are just slaves..they need to be told how to operate right].

what would be easier to build..would be a 12v booster..basically just additional PCI-e plugs to bring 12v, with inductors and caps to filter and stabilize the 12v input to the GPU..

^^I am unsure of the benefits of this though..no doubt it will help, but I feel 12v is more for 'top-end' speed..and would not be beneficial until the circuit becomes strained from high current...

you dig??
Edited by CL3P20 - 5/16/10 at 4:29pm
post #1195 of 1336
Got any uP6203's?
    
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post #1196 of 1336
Learned an important lesson tonight while performing an OCP mod:

Higher Oscillator Frequency = Higher Temps (every at low operating frequencies)

My OCP resistance was set at 300K. I lowered it to 40K, thinking that it only allowed the freq to to reach 1200Hz. Well, booted up the card and within a minute of Windows being loaded, the card's sinks over the mosfets and inductors were burning to the touch and the card was radiating heat off of it pretty bad. Then the screen bugged and turned orange. Core and PCB temps never went up in GPUz though? Lowered the OCP to 120KOhms and everything is running smoothly and I can finally OC the card. Card is just warm now.
    
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post #1197 of 1336
I keep seeing more of these pics popping up in the internetz and they get me all hot and horny.



    
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post #1198 of 1336
That does look cool. Trying to find out more about it but google translation isn't being very helpful on that site.
    
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post #1199 of 1336
EDITTED


shhhh
    
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post #1200 of 1336
Posted it here a while ago http://benchtec.co.uk/forums/showthread.php?t=6323
http://kingpincooling.com/forum/showthread.php?t=635
Think he still has it
Was looking good when it was live benched... until it died lol.

Would it be that hard to make one? Obviously not evbot compatible.
Edited by el gappo - 5/30/10 at 6:05pm
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