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Dsherm112 1st March, 2004 11:01 PM

Won't Boot
 
W2K, 2 P 3 666's, 512 Ram, AmptronM790MR Dual Socket 370 Mobo, AMIBIOS dated 11/10/2000 S

I loaned this machine to my sister, when she got home with it it wouldn't boot, I'm guessing it was bumped.

When started it boots to the B&W screen that says "Starting Windows" where it scrolls across the bottom and then reboots. It constantly reboots no matter how long you try. It beeps once which is normal.

I have tried another power supply, video card, CMOS battery and monitor. I have disconnected everything but the video and HD. I have pulled and reset the Ram. But it still won't boot.

I didn't pull and reset the CPU's, I didn't want to do that if I didn't have to. Does anyone have any ideas? I suspect a bad mobo, but I hope its something else.

Thanks,

Sherm

Dsherm112 1st March, 2004 11:08 PM

Won't Boot
 
I just checked the beep codes, 1 short beep says:1 short DRAM refresh failure The programmable interrupt timer or programmable interrupt controller has probably failed

I guess this means a bad mobo. Does anyone know for sure?

Thanks,

Sherm

Daniel ~ 1st March, 2004 11:46 PM

I've gotten something like this when it can't find my hard drives, today in fact! A loose connection perhaps? Molex plugs SUCK big time if you ask me!

Gizmo 2nd March, 2004 12:00 AM

Does the beep come while you are looking at the POST screen, or some time after?

For most machines, 1 short beep is normal during POST. It just means that things worked correctly. In addition, if the POST were detecting a failure, I imagine it would not try to boot at all. The fact that you are getting the Windows logo suggests to me that you are in fact passing POST and doing the initial boot.

Have you tried booting in SAFE mode? Try Pressing F8 as soon as you see the Windows Screen.

Dsherm112 3rd March, 2004 03:28 AM

I think the problem is a bad switch. What's the best way to jump the switch? From studying the switch design, it appears the switch is closed to start the machine, but then pops open.

Can I cut the wires and touch them, or should I pull the plug, tape the wires together and plug it in. Or can I simply jump the pins on the mobo?

Thanks,

Sherm

Gizmo 3rd March, 2004 04:13 AM

The switch is SPST N/O (Single pole, single throw, normally open). Yes, all you have to do is pull the connector from the mobo header and jump the header pins directly using anything that conducts electricity. Just don't short the wrong pins....

Dsherm112 3rd March, 2004 08:40 PM

I shorted the pins and it didn't start. Using a second PSU didn't help either. I guess it's the mobo, any other ideas?

Thanks,

Sherm

Daniel ~ 3rd March, 2004 10:57 PM

Sounds like the bump may have somehow created a short. Try testing out of your case with just RAM and CPU. Hookup your PSU and try to short it switch pins again.

Dsherm112 7th March, 2004 03:25 AM

I pulled the mobo and it runs fine out of the box. When I put it back in the box it won't run. I pulled a HD from another machine and substituted it in this machine and it ran ok, so either I need a new HD or I need to reinstall W2K.

I have no idea how to reinstall W2K when the machine won't run. If anyone has any ideas, let me know.

Thanks,

Sherm

Gizmo 7th March, 2004 04:57 AM

If the machine runs just fine out of the box, but won't finish the boot when in the box, then you've GOT to have a short of some kind somewhere.

Was the HD in or out of the box when the machine booted?

Daniel ~ 7th March, 2004 05:09 AM

Look for a wrongly placed mounting stud under your mother board, one gave me fits once!!

Dsherm112 7th March, 2004 05:26 PM

I found a screw under the mobo and thought this was the problem. But it still refused to boot. I put another HD in the machine and it booted ok. This tells me the problem is the original HD.

I put the bad HD in another machineas a primary slave. It was recognized in the boot up display and in the bios, but doesn't show up in explorer or My Computer. I'm not sure what this means. I'm debating buying a new HD, but why does it show up on the boot screen and in bios and then doesn't show in explorer?

Thanks,

Sherm

Gizmo 7th March, 2004 06:01 PM

Quote:

Originally Posted by Dsherm112
I found a screw under the mobo and thought this was the problem. But it still refused to boot. I put another HD in the machine and it booted ok. This tells me the problem is the original HD.

I put the bad HD in another machineas a primary slave. It was recognized in the boot up display and in the bios, but doesn't show up in explorer or My Computer. I'm not sure what this means. I'm debating buying a new HD, but why does it show up on the boot screen and in bios and then doesn't show in explorer?

Thanks,

Sherm

If you are running Win2K or WinXP, you'll have to let Disk Administrator recognize the drive before you can see it in Windows.

Daniel ~ 7th March, 2004 10:40 PM

I just went all thought this! A bad Molex plug AND a brand new BAD fan adapter AND a harddrive that may be bad, just keep moving stuff around until it works, less than scientific I know!!

I'll test the harddrive on another machine when I get the chance.


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