In need of some Help Please

[edm]

Hi all. I'm a little stumped right now. Earlier today I was attempting to install a 320 Seagate drive to run in RAID mode with my current 160 drive, which I've been using for about a year without any issues (in regular sata mode). After getting everything set up and turning on the computer, it beeped once, then made a very strange screeching sound for a couple seconds (kind of like the way an old 56k modem would sound when connecting). Right after the screech, the system froze.

Now when I turn on the computer I get no beeps, no bios, no anything. Although, everything appears to be powered up ok (lights, fans, etc). but nothing happens. The first thing I did was remove the new HD and set it up the way it was previously, but still nothing. Tonight I stripped it down to only the video card, HD, and a single RAM stick, but still nothing.

I have tried everything I can think of. I reseated the video card. Tried it with just one ram stick installed at a time. Reset the clear cmos jumper.

Another odd thing is I can not turn the system on or off with the power/reset buttons on the front of the computer case now. It will only turn on and off with the main power switch on the back of the power supply. When I push the power or reset button on the front of the case, nothing happens.

Anyone have any ideas? Thanks

K8N Neo 2 Platinum
Antec Sonata II 450 Watts
ATI AIW 800XT
Athlon 64 3500+
1 GIG corsair Value Ram 2x512
SB Audigy 2 zs platinum
160 GIG Seagate 7200.7 (old drive)
320 GIG Seagate 7200.10 (new drive)

 

[Vaktathi]

did you make sure that the power connections were all set? if something got loose that may caused your problem. A similar (but not exact) problem happened to a friend of mine and there were burn marks on a couple of the Molex connectors. check for that in a worse case scenario.

 

[Lord Evermore]

It definitely sounds like something burned out, and took your mainboard with it, maybe the CPU too, and who knows what else without individually testing each component on a known working system. This may have been because you plugged something in wrong, or it may have simply been that some component was on the edge and your changes happened to set it off.

You didn't mention whether you get any beeps when you power it up, when the lights and fans come on.

Take everything out except the CPU and mainboard, make sure all the cables to other devices from the mainboard are unplugged except the power supply. If you don't get any error beeps (presumably you know what the normal startup beeps are; with my new mainboard I don't get the old standard single beep), then your mainboard and/or CPU are probably toast. Take a good hard look at it and you might be able to see what fried. However you may want to try it with a different power supply first, as it may simply be that the PSU was damaged and is no longer supplying one of the voltage rails.

 

[edm]

Yeah, that's what I was afraid to hear 🙁

Anyway, I tried a few of your suggestions today and have some good news (I guess) and bad news. The first thing I did was hook up another power supply to the motherboard, but that did not help. I just got the same thing (it power right up when I turned the power supply switch to :I:, but nothing else. No beeps, etc).

Next I took out my video card and sound card and installed them in another system and they are still working fine.

Unfortunately, my other PC does not support the Athlon 64, Sata, or the RAM I'm using, so I have no way to test those.

So I guess that leaves the Motherboard or CPU or both