3Dmark05 now 8114 with 7800GT

[t024484]

I was struggling all the time to get the maximum from my XFX7800GT.
Although auto detect came with nice high figures, Firefly Forrest and Comanche 4 did not let me cross a certain border.
Increasing the GPU voltage increased my problems, and from 1.6 Volt the board refused to run in 3D mode.

But..... I found the cause. It was the Vgpu current limiter that was adjusted so marginal, that it did not allow a setting too far off the standard setting.
That caused black screens and the CPU hanging.

With an XFX Black version, standard setting 450/1050 I am now at 567/1350
Original 3DMark05 7221
Current 3DMark05 8114

http://service.futuremark.com/compare?3dm05=1764266

What I have done is:
Hardware Vmod of Vgpu from 1.4 to 1.6Volt
Delta geometric clock of 50 (567Mhz in 3DMark05 and 517Mhz in Coolbits)
Hardware Vmod of Vmem from 1.1 to 1.2Volt
Change the current limit for Vgpu
Zalman VF-700
Adjust the (wrong) Mem timing to the manufacturers specs

System is trouble and artifact free.
Can run for hours with ATITool. Highest temp is 74C.