PC Won't Boot/ Solid Orange Light

January 24, 2006 at 08:53:15
Specs: Windows XP Professional, 1.8 GHz/ 256 RAM
My PC will not boot up at all!!! There is just a solid orange light on the power button. I have switched the power supply, bought a new processor, and bought a new motherboard. I've called the people at Dell and they didn't even have an answer to my problem. When I first had the problem, there was a solid orange light, so I switched the power supply...same result. Then I got a new processor, but when we booted the PC, the power light was still a solid orange, but this time the CD-ROMN light was also a solid orange color (that didn't happen the first time). So we decided to get a new motherboard. After the switch, it went back to just a solid orange light on the power light and nothing on the CD-ROM. Next, I called Dell technical support and they walked me through a few steps: disconnecting all the cables and removing the memory and booting up.....but no beeps came from the PC. They thought that maybe the motherboard we got might be bad, so we sent for another one....same result. So I'm back to where I started in the beginning. Can anyone out there help me at all......any kind of suggestion that I haven't thought of yet would really help a lot....thanks in advance..

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January 24, 2006 at 09:28:50
Dell has used proprietary motherboard/power supplies. If you tried using a generic power supply, you might have fried either the motherboard or the power supply and maybe both.

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January 24, 2006 at 09:49:09
Randomly replacing parts is not an acceptable method of troubleshooting....

Hellz Yea!

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January 24, 2006 at 09:53:38
You didn't mention your ram. Ram that is not compatible with your mboard can cause no boot - did you add to or change any of the ram in the original mboard just before this happened on the old mboard? Did you transfer the old ram to the new board - if so, it may not be compatible with the new mboard.

"I have switched the power supply"

Are you sure it works, and has enough capacity?

Have you tried the original PS on another computer? Did/does its fan spin properly?
Can you smell any obvious burnt wiring/burnt plastic kind of smell at it's external fan outlet when it is off (if your smeller isn't so good, ask someone else who has a good one to smell it)?

A failing power supply, especially if it fails slowly, can damage things connected to it, and unfortunately what damage it does is random. I've personally seen a few worst cases. One killed a floppy drive and a CD drive, and after replacing it I later found the modem card didn't work properly anymore, and the video card died within a short time - the mboard, ram, and cpu were fine. In two other cases it fried the mboard - in the one I have I haven't been able to test the cpu, but the ram, CD drive, and hard drive was transferred to a new mboard and works fine (the original mboard had onboard video).
I've seen several cases where failing PS's kill the floppy drive first - that is a red flag that the PS is dying.

You didn't mention your video card. If your new mboard is using your old video card, and you haven't tried a different video card in either mboard, a dead video card will cause no boot on most computers.

"Then I got a new processor"

Are you SURE it works in the new mboard - CPU support tables often only apply to faster or later added cpu's if the bios version you have is new enough.

Other than that you've already tried things I would have suggested you try.

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