Short update: (Miss-typed the GTX 280 as GFX 280. Sorry!
Got the GTX 280 and installed it.. but no video out! Did a POST card diagnostics check, all codes run through with no problems. Video setting in BIOS is 'auto' select.
From the specs on the GTX 280, it is classed as PCI-E version 2.0. The mobo is classed as PCI-E version 1.1. But the video card is supposed to be backward-compatible to older mobo versions.
A test with an older PCI video card did provide good video. The DVI to VGA connector plugs are known-good.
BIOS date for the D975 mobo is 11/16/2006, so it should be compatible to the GTX 280. May do a BIOS update and see if that works.
Did some research on the GTX280 power requirements, and noted there should be green LED lights at the back if the card is working properly. The lights were RED
! Further research noted that both the 8-pin and 6-pin power sockets on the card must be connected to the PSU. The booklet with the GTX280 only mentioned connecting the proper plug and socket, not both!! What should have been a clue is its cooling fan not powering on when first started. The card needs around 230 watts (19amps) normally.
Dug out the second lead set for PCI-E, plugged it in and powered up. VIDEO! All systems go!!!
Got a new Seagate 500 GB SATA drive from New Egg, and a Win 7 Home Premium edition. Should be on-line in less than a week.
From browsing results for F@H points per day, should be in the range of 6,000 to 8,000!
Final system specs:
Using a generic 6-bay full tower from previous build..
PSU: Antec 650 watt TP3- 650
Mobo: Intel D975XBX2KR I975X LGA775
CPU: Intel Core 2 Duo 1066 MHz FSB: SL 9S8, 2.4 GHz
Memory: 2 x G-SKil DDR2/1066 1 GB GSK F2-8500CL5D-2GBPK 1066 (matched pair)
Hard drive: Seagate ES ST500NM0011 500GB 7200 RPM Constellation
Video: Nvidia GTX 280 1 GB PCI-E x16
Audio: On-board SigmaTel STAC9271D 8-channel
4 x USB 2.0, On-board 1 x 1394a
LAN: 10/100/1000Mbps Intel 82573E
Optical: Pioneer DVD-RW (DVR-116D) and LG 16x DVD reader
Will still keep a 3.5" FDD!
F@H.. to solve mankind's maladies.. in our lifetimes!