Just put together a new system, it doesn't work

[Slick5150]

Here are the spects..

Gigabyte 7NF-RZ motherboard
AMD Sempron 2400+
512mb PC3200 Mushkin RAM
Radeon 9550
Seagate 160gb HD
CD-RW

I put it together, turned it on. It got to the "detecting IDE drives" part of the bootup then shutoff. I tried it again, I never got anything on the screen and it shut off again. A few more trys & nothing.

So I removed the HD & CD-RW from the setup and tried again, same thing. I tried swapping out the RAM and using some from my other PC, same thing.

Now, however, when I put the original RAM back in, now nothing happens when I turn it on. I get no power, nothing happens.

I can't figure out what's going on here. Anybody have any ideas of where to start?

Thanks

 

[KB]

A few things you can try.

Reseat the CPU, and make sure you have thermal grease between the heatsink and CPU.
Remove all HD and CD-ROMs and clear the CMOS.
Reseat the video card.

If none of these work, my bet is you have a bad board.

Good luck.

 

[Cheetah8799]

Could be that the CPU is overheating due to bad heatsink placement.

Try pulling parts from a working rig and testing in this one, if you have another rig with compatible parts...

 

[Slick5150]

Thanks..

I have so far tried unplugging the HD and CD-RW & clearing the CMOS. I'll try redoing the thermal grease w/ the CPU tonight.

Would the CPU overheating explain the PC refusing to even power on now though?

 

[Fern]

Might try setting up the mobo outside of the case with just cpu (plus HS+F), ram and vid card. This will ensure no case short. See if it can get all the way through POST. Then start installing other components one-at-a-time.

What PSU you got? Is it a known good-working unit?

Fern

 

[mechBgon]

Originally posted by: PinwiZ
I put it together, turned it on. It got to the "detecting IDE drives" part of the bootup then shutoff.

Check photos 3 and 4 on this page and see if that's the issue. If so, it would explain the auto-shutdown. Your CPU might be ok, or it might be dead if you persisted over and over. It's nothin' money can't fix, though

 

[Slick5150]

Well, I tried reseating the CPU, nothing. I tried the CPU from my current computer (Athlon XP 2500) in there, nothing.

So, I tried the Sempron in my current system, it worked!

That left me to try a different power supply on the new system. That was the problem. I guess you get what you pay for, and this cheapo MGE power supply that came with the case didn't even work for 30 seconds. Go figure.

Anyways, thanks for the help guys.

 

[mechBgon]

 

[Grimmett]

Hey,
Make sure your jumpers on your cd roms and hard drives are set correctly and are on the corresponding plugs on the IDE cables. Shutoff at detecting IDE devices may be the result of this.
Grimmett