Link to home
Start Free TrialLog in
Avatar of DrDamnit
DrDamnitFlag for United States of America

asked on

ABIT-IC7 won't post

I have a machine that was working fine until the hard drive died, and I put a new hard drive in it. Now the machine will not post. I have disconnected all the devices (except the video and network card) and it still won't post.

There is a green led  on the board that shines when it is plugged in, but as soon as I hit the power switch to boot it, the led next to it turns red.

What's that mean? Is this board fried or what?
ASKER CERTIFIED SOLUTION
Avatar of Callandor
Callandor
Flag of United States of America image

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
Avatar of DrDamnit

ASKER

The board itself does not say IC7-G, just IC7 V1.0. However, that is correct about D1 and D2. What does the red light mean  on D1-VCC?
It doesn't say anything about color, but I would think that green means system power is on and normal; red means some kind of failure on that circuit.  In your case, if it doesn't work with just a video card (take out the network card), the motherboard may have been affected by the hard drive failure - you should check the power supply also and swap it out, because a power supply failure can affect both hard drive and motherboard.
Ok, swapped out power supplies, no dice. Now what?
Here's the other things that can prevent a POST screen from appearing:

- motherboard shorting on case
- CMOS jumper set to CLEAR, instead of NORMAL position
- bad connections
- bad RAM
- faulty video card
- bad cpu
- bad motherboard

Work your way down the list: start by removing everything from the system, take the motherboard out of the case and set it on a piece of wood or cardboard, and only use the video card, one memory module, and the motherboard with cpu.  Reset the CMOS to make sure it is at defaults, and try turning it on.  Swap the other components for ones you know work, and hopefully you will find something that works before you reach the end of the list.  If you reach the end of the list, you can be reasonably sure it's the motherboard.
SOLUTION
Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
That's what I have done. The funny thing was that it booted fine ONCE, then on reboot it does this. Callandor, when you turn the machine on, are both of those lights green?
I'll take a look when I boot it up tonight.
Thanks in advance.
The LED turns red on D1 (VCC) once the system is turned on, so this is normal behavior.
can you test the drive on another system? it can be bad - DOA
It can't be a drive problem, right? If a MB is not posting, then it doesn't even have a chance to talk to the drive. Yes? I think the board is just shot.
Well, i would agree with you, but there is a chance that the drive just blocks the board, so you have no post.
You find that out easily by disconnecting the drive...
The board was shot. Got a new one, and everything is fine. When I put the new board in, it gave me some error codes that point to "erratic voltage." So I think the PS killed the board and possible the previous hard drive. Thanks to both of you.