higher mem clocks with lower vgpu

[blander]

hi@all

i have a problem with my ati 9800pro,
when i set my vgpu to 1.8v, the mem is stable at 385mhz but when i set the vgpu to 1.95v, the mem is only stable at 370mhz
what can i do, to stabilize the mem at high vgpu?

[persivore]

The problem could be caused by the power carrying traces in the card reaching their current carrying limit, or the molex connector on the card is close to carying the maximum it can take. The solution to that would be to solder aditional wires between the regulators and the power rails.
The problem could also be related to the power supply. What are the lines rated to on it?

[blander]

The problem could be caused by the power carrying traces in the card reaching their current carrying limit, or the molex connector on the card is close to carying the maximum it can take. The solution to that would be to solder aditional wires between the regulators and the power rails.
The problem could also be related to the power supply. What are the lines rated to on it?

thx for the reply,
i think the power supply is ok, its an enermax 460W
3.3v @ 3.5v, 5V @ 5.7v, 12v @ 13.57v

[Reznik Akime]

Could it also be a heat problem? What kinda heatsink you got on it? 1.95 sounds like alot to me..

[CaTalyst.X]

Sounds like VDDQ problem to me.....only thing is w. the 9800 cards, modding the vddq can kill them instantly......bad news bro

-CaT

[blander]

Sounds like VDDQ problem to me.....only thing is w. the 9800 cards, modding the vddq can kill them instantly......bad news bro

-CaT

is this true, to high vddq can kill the card? i read about vref over 1.5v can kill the card, but vddq?
what is highest vddq i can give without demage the card?

[CaTalyst.X]

i dont know bro...its kind of wierd. Ive never dont the vddq mod because i heard even the slightest bump would kill the card. Malves would be able to help you with this more than I can.

-CaT