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post #151 of 1336
Thanks for the tips...I dont think i am yet CPU limited though!!!
I ll increase the PCI E freq though...115 should be good!!!
Laterz,gotta go training
    
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post #152 of 1336
Thread Starter 
115 PCI-E clock

be careful!

I read if you keep your PCI-E clock that high for an extended period you run an incredible risk of corrupting sata devices, i.e. harddrives, keep it quick or only keep one HDD you really don't care about plugged in
post #153 of 1336
Ok i ll keep it mind!!!!

UPDATE:
Added 2 x 6,3v/1000uF and 3 x 16v/470uF caps!!!
I think the voltage is much steadier!557core/547DDR!!!And i ll keep pushing but i run out of cooling!
After 1,6volts the core gets REALLY hot...I need to cool it somehow...


And another important thing!!!!
I think that for the vMEM i am not limited by the value of the resistor but from the PSU VOLTAGE itself!Think of it!I am currently @3,18 volts vMEM and the VOLTAGE REGULATOR CHIP get supplied from the PSU 3,3volts so theres no way i am going past that RIGHT????????
So any bright ideas about going higher than 3,3volts???How would i be able to take voltage from elsewhere and add it to the vMEM directly???
Edited by theo.gr - 11/30/09 at 4:18am
    
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post #154 of 1336
You can solder in a molex connector to the output side of your vmem phase, to bypass the vmem circuit completely... this will also give 3.3v .. but I would use another PSU, as with yours under load..the 3.3v rail is going to jump around a lot.
post #155 of 1336
hmmm, could be use the 5v rail?
    
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post #156 of 1336
Thread Starter 
I don't see why not, you would just have to provide the proper resistance to make sure you aren't sending 7.13 volts into the vmem

I've always thought of something this but I figured a watch battery might be easier, that or possibly using a motherboard fan pin header just because it would be easier, or maybe something from a can controller that way you can:

A) control your voltage easily
B) protect against frying your PSU or MOBO
Edited by tha d0ctor - 11/30/09 at 9:52am
post #157 of 1336
Good thoughts...I am thinking about taking from the 5 volt rail and putting a resistor or something...So there would be a drop of say1,5 volts...
But then how would this be realized?
What resistor should i use???
Would Ohms law apply here?
R=V/I??? V=5volts I=???Would I= the max Amps the PSU can provide in the 5volt rail?

Quote:
Originally Posted by CL3P20 View Post
You can solder in a molex connector to the output side of your vmem phase, to bypass the vmem circuit completely... this will also give 3.3v .. but I would use another PSU, as with yours under load..the 3.3v rail is going to jump around a lot.
Yes but this is like connecting 2 power sources of the same voltage IN PARALLEL!!!This would only result in greater CURRENT.not voltage.
For greater voltage one would need 2 power sources IN SERIES, right???

To help u understand i made this:

Edited by theo.gr - 11/30/09 at 10:26am
    
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post #158 of 1336
I understand..I was forgetting you need to go beyond 3.3v ..

You can solder the leads onto the legs of the mosfets..just read which side has the output voltage...the input could very well be either 12v or 5v on the other leg. Soldering to the output leg will bypass the mosfet altogether but induce current at the same point into the circuit.
post #159 of 1336
Hm......So we want to add voltage and not current...
Maybe Using a big resistor i could add some volts more to the output leg of the mosfet and n the same time i also solder a wire with a tiny resistor to the ground so the extra current would follow that way out of the card!!!
How does this sound??????
    
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post #160 of 1336
Voltage goes where you put it...amperage [current] goes where its needed.

ie- Supplying the GPU with a 25A, 5v current...the GPU will still only use as much amperage as it needs...I doubt amperage is your issue...usually things pop when trying to draw more current than they are capable of....

I would solder in leads to the output leg of the mosfets..and link them all together to a plug of some-sort...then hook up your 5V supply.

*** You need to first make sure the input leg of the mosfet is receiving "x" voltage though... If the mosfets run off 12v...then adding 5v will do nothing.
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