Hi Gloup-gloup
Thanks for your response. My answers to the questions you raise are below. The only think I can't swap out at the moment is the PSU because I don't have a spare at home<About your PSU:
<http://www.gigabyte.com/products/product-page.aspx?pid=2793#sp
<+12V1 +12V2 +12V3
< 18A 18A 18A
<About your WinFast PX7600 GT TDH Extreme:
<http://www.leadtek.com.tw/eng/gps/specification.asp?pronameid=266&lineid=8&act=2
<For two PX7600 GT running in SLI configurations, a minimum 400W system power supply (
with 12V rating of 22A) is <recommended.
<So your PSU is not powerfull for your configuration. When you choose a PSU, make attention at amperage. Is important.
This was sold to me by the store as being suitable for my system - at some point you have to trust the people who sell you things.
<Have you tried start a computer with just a CPU, one stick of ram, and one single graphic card, mouse, keyboard and Display monitor.
<No Hard Disk. Nothing other.
Yes, still no picture on screen.<Have you a probem with this very minimal configuration? If yes, fix it before add other hardware.
Yes, even with a single older graphics card, a PX6600 TD
http://www.leadtek.com.tw/eng/3d_graphic/specification.asp?pronameid=206&lineid=1&act=2
There is nothing on either a CRT or a FST display. That is exactly what i am tryig to do now, to get it working as a "bare Bones" then see what is wrong, and I can't.
<When you have installed a cpu on socket, you put a thermal paste, between cpu and heatsink?
Yes<Have you a Intel stock heatsink or other? If other, name it please.
Using the intel stock heatsink that came with the processor in the same box<Other thing, the pressure on the cpu by the heatsink have a importance on the system.
<Because a cpu have a memory controller.
<If the pressure is higher on one side of the cpu is not good.
<We really need the pressure of the cooler is balanced on the cpu. And also not too strong. Sometimes you need release the pressure, while <ensuring it is fully equal on every side.
I had wondered about that because the heatsink and fan seemed to need a lot of pressure to get it to lock into the motherboard, but when not locked down it is not sucure. There seems to be no way to do a partial lock down<What is your case, for this computer system?
<Please type with precision the model and brand, thank.
The case is branded "Gigabyte". The label says Model PC61163, OE 023710 Date 0610 S/N C300169. I searched and found that it seems to hav been made by Chenbro Micom<Your graphics card have each :
<Connectors HDTV-out / Dual link DVI-I/ Single link DVI-I
<Have you choose a the good cable for the connector?
Yes, the ones that came bundled with the graphics cards by leadtek, and tried alternatives to be sure it wasn't a cable fault. I have the older system I was upgrading from and have tried individual componants in that and they all work individually. They just don't work on the new board. The 400w PSU is not enought and is not new enough to try with the new MB though.<Otherwise you have a DVI-to-VGA Adaptor if you need it.
Yes I have. The 7600 card has both VGA and DVI and I have tried both, again without success
Thanks
Norman