Radeon X1900 Voltmods

[W1zzard]

This voltmod applies to all X1900 series cards using PCB #A520031-50 with VDDCI support.

These mods are designed for users of extreme cooling solutions who need more voltage than can be set via software with ATITool for example.

Overview
http://www.techpowerup.com/articles/143/images/overview_small.jpg (http://www.techpowerup.com/articles/143/images/overview.jpg)

Mods to solder
http://www.techpowerup.com/articles/143/images/vddc.jpg

http://www.techpowerup.com/articles/143/images/vddci.jpg

http://www.techpowerup.com/articles/143/images/mvddc.jpg

[POGE]

Looking good. :)

[WakeUpDead]

I would like to do this but what amount of performance increase will I get with this?

Also I have never done anything like this, on a scale 1-5 how difficult will this be?

One last thing, you show sodder points, and the line to another point, what gets soddered?

Sorry just confused. Thanks!

[W1zzard]

with air cooling you will probably gain nothing .. these mods are mainly interesting for extreme coolers.

[hagr]

well, is it the same mod for a x1950XTX card, or does the 1950XTX need another mod??

[Spacehead]

Has anybody with watercooling done these? 800 Mhz possible?

It looks like for X1950XT these mods work too.

[aspire]

My best without any kind of volt mod or change in voltage settings was 754 mhz on the core.

This was with the core under water.