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post #51 of 89 (permalink) Old 01-28-2010, 10:48 PM
 
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http://www.techpowerup.com/vgabios/5...24.090925.html

..for anyone who finds the link here on OCN


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post #52 of 89 (permalink) Old 02-26-2010, 08:01 PM
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Hi, having no way of adjusting the voltage on the pcs+ through the use of software (tried ab, ati gpu tool) since apparently the uP6219 controller is not software.. controllable, am now hoping I can up the voltage through a volt mod.
I have never done a volt mod before so it seems kinda scary.. but from what I've read here, connecting a resistor to the fb (not sure what this is.. an input or output for the voltage to the vgpu from the controller?) and then grounding the resistor either to the pcie power connectors' ground points or some other spot to increases the resistance, which I think is supposed to trick the regulator into increasing the voltage it puts out... or something like that... sounds simple enough... sort of anyway.
Is the volt mod shown here, the one on page 1 with the 50ohm trimmer (resistor?) for the core be possible on the powercolor 5850 pcs+ (http://www.techpowerup.com/reviews/P...CS_Plus/3.html)?
Here are links to high res photos of the back and front:
Back - http://www.techpowerup.com/reviews/P.../back_full.jpg
Front - http://www.techpowerup.com/reviews/P...front_full.jpg
I understand soldering stuff on the card risks destroying it, but can just using a multimeter on the card alone do damage? Just curious.
Oh and how reliable is volt modding...
-does it cause issues with drivers?
-reduce longevity of the card.. say an increase to 1.25 on the gpu so nothing too extreme?
-does it disable powerplay I think its called.. the thing that reduces clock speeds on idle?

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post #53 of 89 (permalink) Old 02-27-2010, 11:32 AM
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Just read over this thread and not sure if it has been mentioned but, soft mod the card past 1.35 you can flash asus bios onto it. Then just use smart doctor, it will let you go to 1.5 vcore. I have benched up to 1.45 vcore. I think you will hit a wall with out going subzero. No matter how much power I give it cant get a vantage run in past 1170/1300.

Subscribing to thread, you guys do great work.

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post #54 of 89 (permalink) Old 02-27-2010, 08:19 PM
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Firstly I have used rbe 1.24 up to 1.25 beta to try to adjust the voltage on my card with no luck, and have tried both the asus bios and msi bios. And just to clarify, the powercolor 5850 pcs+ does not have the volterra controller that allows people to adjust the voltage on the reference 5850s with afterburner, amd gpu clock tool, or through adjustments of the bios.
The 5850 pcs+ is not reference (http://www.techpowerup.com/reviews/P...CS_Plus/4.html). It uses the uP6219 voltage controller (http://www.techpowerup.com/reviews/P...mages/vreg.jpg) instead of the volterra one.

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post #55 of 89 (permalink) Old 02-27-2010, 08:41 PM
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Maybe its your bold attitude thats keeping you from getting where you need to be. Good luck

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post #56 of 89 (permalink) Old 02-27-2010, 08:54 PM
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Ok... thanks... anyway, does anyone know a way to determine where the feedback is on a voltage controller without the schematics. The website uPI Semiconductor http://www.upi-semi.com/product/Prod...spx?ArchID=172 does not show any info on the uP6219 controller.

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post #57 of 89 (permalink) Old 02-28-2010, 11:20 AM
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Quote:
Originally Posted by anotheralex View Post
Ok... thanks... anyway, does anyone know a way to determine where the feedback is on a voltage controller without the schematics. The website uPI Semiconductor http://www.upi-semi.com/product/Prod...spx?ArchID=172 does not show any info on the uP6219 controller.
Not yet. Just check all the data sheet archives I have and no info..

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post #58 of 89 (permalink) Old 02-28-2010, 12:25 PM
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Woah, cool list (https://www.overclock.net/general-vol...ssentials.html) you got there, lots of info!

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post #59 of 89 (permalink) Old 04-12-2010, 11:06 PM
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Hey anotheralex and PizzaMan, I think I may have figured out a volt mod for the 5850 PCS+

Check it out here! Should this work based on my reasoning?

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post #60 of 89 (permalink) Old 04-13-2010, 05:27 AM
 
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RE'd in the thread you linked


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