My 7800 GTX Benchmarks

[FraGTastiK]

2 x 450 Watt Power Supplies

this could very well be the cause of your problem.as far as the pictures provided in CM Stacker reviews show the dual power connector has 20pins instead of 24.while it should be ok to boot but plugging a 20 pin PSU ATX connector to a 24pin ATX mainboard may show its weakness under heavy load.

try using only one strong 24 pin PSU and see what happens.

[Lfctony]

I had low 3DMArk05 scores.... at about 6500. Most forums suggest that this is due to the puny Intel 3.0ghz limitation.

SO I decided to overclock the hell out of it in hopes of saving my rig. Since I am a noob to overclocking... i had many start and stops... finally managed to get a stable clock at 3.45Ghz.... And the results were very encouraging..

New 3DMark05 score at 7498!!! :eek: Does not touch the 8k++ figures some others are putting up.... but my 7800GTX is not OCed yet... still stock at 430/1200. At least now I feel better about my rig. Game play is slightly better as frame rates have improved.

Next will have to learn up a little bit more about OCing to higher frequencies... next target 3.6Ghz!!

Make sure you drop down your ram speed as well before upping the FSB or your ram will hold you back. For example, you have your PC at 15x200, your ram being 2x200. Then you go to 15x220 and while your CPU can take the extra speed, your ram might not handle 2x220. So you have to drop down the ram speed, ie increase the divider. And make sure you have good cooling, those Prescotts get really hot.

[zer0]

Make sure you drop down your ram speed as well before upping the FSB or your ram will hold you back. For example, you have your PC at 15x200, your ram being 2x200. Then you go to 15x220 and while your CPU can take the extra speed, your ram might not handle 2x220. So you have to drop down the ram speed, ie increase the divider. And make sure you have good cooling, those Prescotts get really hot.

nice explanation...(xmasmile)

[Fathertime36]

You need to keep an eye on the HTT bus output, it is the bus where all information other then that from ram is transfered from the cpu to hasrdware such as your hd, sound card, etc..... a lot of people overlook this and only pay attention to the FSB/cpu-x and ram settings, when you increase your fsb setting you also increase the htt bandwidth, try to keep it between 800-1000, drop the HTT multipier if you have to, if it exceeds 1000 it could cause instability.

[Lfctony]

He's on a P4, he's doesn't have to worry about HTT. :)

[Dasneak]

damn you have a huge problem lol