P4GPL-X + Dothan OC problems

[albertwesker]

Please give more details!!!! You're the only one we "know" running this configuration, give us all the details and tweaks!!
I bet you're on an IDE HDD right??

C

I don't use any tweaks, if you want to reach an high fsb, you only have to set the PCIe frequency higher than 120 MHz.

For example:

PCIe = 123 --> 2,2*123 = 270
so you can get a fsb of 270 MHz, if you use a pcie clock of 123 MHz.

The PCIe clock does only overloads the HDD ( if you use an IDE HDD on the Onboard Controller) and the Northbridge. If you consider the formula ( 2,2*PCIe = FSB), there is no problem with your graphic card. You can also select an higher PCIe clock, but it have to be higher than FSB/2,2.
With a Vchip at 1,6V you can reach a PCIe clock about 220 to 230 MHz. For Higher PCIe clocks, you have to do a Vchip mod to 1,9V.

I use a Promise PCI SATA RAID Controller with 4x WD 250 GB and Vchip at 1,6V, so i can reach a FSB of 290 with no problems.


here is my result in 3dmark 2001:



P-M @ 3150 MHz + 7800 GTX @ stock

the 7800 GTX isn't the best performer at 3dmark 2001, a x850 XT PE should reach 40-42k easily.