ATI 3850/3870 Voltmod thread

[LowRun]

Well I was being stupid before and those metal points certainly are vGPU measure points.

I was at 1.84v :p I have no problem pushing limits but even that is a bit roasty for me on a 55nm process, watercooling or not. So I've lowered clocks to 840mhz.... 1.4v idle 1.5v load ....now temps are 29c idle 37c max load

Would like to figure out a gddr3 vdimm mod for this card, and once I've pushed the limits I will need a new toy :p

Now that is some serious volts

[RealyPssd]

Is there any updates/word on when ATI Tool will be updated with s/w voltage control for the HD3xxx's yet?

[LowRun]

Is there any updates/word on when ATI Tool will be updated with s/w voltage control for the HD3xxx's yet?

No other timeframe than "soon" was given but w1zzard also said that voltage control would be very limited unfortunately

[RealyPssd]

Does anyone know if you can adjust HD3xxx voltages with that new Phenom/790 Overdrive application since it is part of that spider platform?

[kemist]

Quick question, would this trimmer work for this mod?

Technical/Catalog Information 490-3009-ND
Standard Package 50
Category Potentiometers, Variable Resistors
Family Trimmers
Vendor Murata Electronics North America
Resistance In Ohms 100K

Power (Watts) 0.25W, 1/4W

Number of Turns 12

Package / Case Through Hole

Packaging Bulk

Adjustment Type Top Adjustment

Tolerance ±10%

Series PV37

Lead Free Status Lead free
RoHS Status RoHS compliant
Other Names 490-3009
490-3009-ND
PV37Y104C01B00

[Norway]

Havent testet it becuase 1350Mhz is more then enough for me

[Norway]

I have now pencil mod'd the vcore so the circuit is a total off 4.59Kohm, default is it 5.1Kohm

Hope some good results