Need suggestions on this issue

[xrecar]

I have a machine I built some time ago. Tonight I decided to tear it down to perform a thorough cleaning and also to change the drive configuration around a bit along with a fresh install of Windows 7. After cleaning everything and making my hard drive changes, I booted the machine up.

Everything started up as expected, I went into the BIOS and changed the drive settings to enable raid. I saved the changes and performed a reboot. When the machine came back up, I realized one of my drives was not showing up. I shut the machine back down and pulled the cover to find the power cable for one of the drives had come undone. I reconnected the drive, put the cover back on and booted the machine.

When the machine came back up this time, I had no display. Everything on the machine lights up and all the fans are spinning, including the video card. I tried booting the machine again to no avail. I also tried switching the display to the second dvi connector, still no display. The monitor is recognizing the connection because it goes to a 'check your connection' type message when I disconnect it and goes back to being blank when reconnected.

I thought perhaps my changes in the bios caused the issue, so I powered down, disconnected power from the machine and bridged the jumper to reset the cmos. Booted up again to no display. I then shutdown and reseated the video card as well to make sure that wasnt the issue. Still, the same problem.

I am looking for any suggestions on anything else I can try. Unfortunately, I dont have another machine that uses PCIX to test the video card, nor do I have another PCIX video card to try with the machine. In case it may help, below are the specs for my machine:

AMD Phenom II X4 940 3Ghz Processor
Gigabyte MA790X-UD4P Motherboard
Kingston Hyper-X PC2-8500 2x2Gb
BFG Tech BFGR98512GTOCE 9800GT
BFG Tech GS-450 450w Power Supply
Seagate Barracuda 7200.10 160 Gb Drive (x2)
Western Digital 7200 500Gb Drive (x2)

Thanks in advance for any help you can give.

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[tecnopagan]

From my experience, It is something simple that got bumped or disconnected. I would go through all of my connections and make sure they are all securely connected. Those large video cards can have a tendency to unseat easily. Also check the connection on the monitor.
Computer issues drive me nuts and this issue you are going through has happened to me more than once and for me each time it was the video card not seated properly.

Good luck!

[xrecar]

Ok, so after lots of disconnecting, reconnecting, and spending countless hours trying to figure out what was going on, I finally found the issue. Somehow during the cleaning process, I had managed to change the voltage setting on my power supply. Oddly, it would still power up the fans on everything but apparently wouldnt actually allow the motherboard to post. Changed the switch and everything is back up and working. Thanks for the suggestions and hopefully this post will help someone else avoid wasting a day and a half like I did.

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