volt mod for 5600ultra and 5900
props to Travis Hayes from O/C forums with help on this and cheers to the folks at theforumisdown.com...
Travis' leadtek 5600 did 435mhz@1.45 volts and with the volt mod 480mhz@1.80 volts... my red generic 5600ultra does a bit more with watercooling....
with the stock cooling, the leadtek is at 100 celcius according to Travis... mine was at a more subtle 50 celcius with a koolance block...
like any other volt mod this will obviously voids ur warrenty, so... and also you'll need some SUP4 L337 H4><0R soldering skills, cause the pin is roughly half the size of what we've seen on the 9800 or likewise...
you'll also need a 15k variable pot,... hopefully with about 20 turns... cause once you cross the threshhold its .1v per turn... so...
look for the SQUARE Intersil controller here on the back of the 5600 near the molex plug...
http://www.theforumisdown.com/upload...600%20back.bmp
http://www.theforumisdown.com/upload...n%20points.bmp
attach the variable pot from pin 3 to GROUND...
5600 PDF, use pin 3
http://www.intersil.com/data/fn/fn9030.pdf
5900 PDF, use pin 7
http://www.intersil.com/data/fn/fn9092.pdf
use this cap for the core voltage mesurements http://www.theforumisdown.com/upload...00%20front.bmp
be sure to remember to set the pot on max BEFORE you start
pic of Travis' solder point on voltage controller.
http://www.theforumisdown.com/upload...ion%20made.bmp
base voltage should start at around 1.42v (generic) and 1.45v (Travis' leadtek)
the vmem uses the same controller as the 9700, same thing, i'll post a follow up soon with that...
for a 5600 ultra with decent modded cooling expect 500mhz core at 1.9v vgpu
and for the 5900 expect 5800 ultra core speeds at minimum
oh yeah, and thanks for all the help from Travis and i'm using all his pics.. so...
edit: reference 5200 ultras seem to have the same controllers, so this can apply to them as well...
