what could the problem be?

cmdavid

Diamond Member
May 23, 2001
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a friend of mine has this computer thats having issues right now... the computer turns on fine but the monitor just stays black.. i cant tell if the computer is going through the boot up process or not.... whats the best method to troubleshoot and pinpoint the problem? what are the actual componenets that could be causing this? i thought it may be the vid card but its not cause i already tested that.. what else could it be? I also thought about resetting the biosw/ the jumper but i gotta find out what kinda mobo it is first and then find which jumper it is to reset the bios... also, after its been running for awhile, i cant just press the power button to turn it off.. i have to turn of the powersupply from the back to turn the computer off and turn it back on... i think its having problems booting up but i cant figure out for sure...
thanks in advance for any help....
 

WTT0001

Golden Member
Jan 2, 2001
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(1) are you hearing a beep after a couple of seconds (End of Post)
(2) Hard Drive activity???
(3) Light on Floppy???
(4) Lights on Keyboard???
 

PG

Diamond Member
Oct 25, 1999
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You don't get anything on the screen at all? Try a PCI card. Maybe "Initial Display Select" in the BIOS got set to PCI.

 

cmdavid

Diamond Member
May 23, 2001
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Originally posted by: WTT0001
(1) are you hearing a beep after a couple of seconds (End of Post)
(2) Hard Drive activity???
(3) Light on Floppy???
(4) Lights on Keyboard???

1. No beeps
2. I hear some hard drive activitity initially..
3. No floppy light, but the CD rom drive lights up and beeps for a few seconds then stops..
4. no keyboard lights...



You don't get anything on the screen at all? Try a PCI card. Maybe "Initial Display Select" in the BIOS got set to PCI.
don't have a PCI vid card :eek: .. but thanks for the thought, i didnt think about that...

im guessing its a bios problem but i cant figure it out.

 

cmdavid

Diamond Member
May 23, 2001
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found out what kind of mobo.. Tekram P6L40-A4E .. now if i can find a manual online to find which jumpers are to reset the bios.... any help appreciated...
 

xospec1alk

Diamond Member
Mar 4, 2002
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wrong forum eh?

anyways, same thing happened to me, i took everything out and reseated it, including the cpu, and poof it was all good...

when i put everything back, i started w/ the cpu listened for post then memory...and so on and so forth
 

cmdavid

Diamond Member
May 23, 2001
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Originally posted by: xospec1alk
wrong forum eh?

anyways, same thing happened to me, i took everything out and reseated it, including the cpu, and poof it was all good...

when i put everything back, i started w/ the cpu listened for post then memory...and so on and so forth
thanks.. i tried that.. still doesnt seem to be posting...

 

WTT0001

Golden Member
Jan 2, 2001
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Sounds like you are not getting through post at all (No beep, you should be getting a single beep to signify the end of post, also, no keyboard lights), are you sure the Power supply is plugged into the Motherboard???

Info on MB
 

cmdavid

Diamond Member
May 23, 2001
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Originally posted by: WTT0001
Sounds like you are not getting through post at all (No beep, you should be getting a single beep to signify the end of post, also, no keyboard lights), are you sure the Power supply is plugged into the Motherboard???

Info on MB

yeah im sure its plugged in.... ive unplugged it and plugged it back in several times now... but we'll try again... thx for the help...
 

cmdavid

Diamond Member
May 23, 2001
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btw, im fairly sure the mobo is getting power because the HS fan is running...
 

Skyclad1uhm1

Lifer
Aug 10, 2001
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Try removing all the boards (including the video card), and only putting the video card back in. Unplug the IDE cables from the motherboard, and see if it at least reaches the BIOS.

As it does not even reach the floppy test it is something to do with either the Mobo, the videocard, the BIOS, or a hardware conflict.

If it still doesn't get to the BIOS setup part at least, try booting without the video card in the machine. This way you will know whether it even starts testing for that. If not, the mobo or BIOS is severely screwed, and you may try resetting the BIOS.
 

cmdavid

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May 23, 2001
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Originally posted by: Skyclad1uhm1
Try removing all the boards (including the video card), and only putting the video card back in. Unplug the IDE cables from the motherboard, and see if it at least reaches the BIOS.

As it does not even reach the floppy test it is something to do with either the Mobo, the videocard, the BIOS, or a hardware conflict.

If it still doesn't get to the BIOS setup part at least, try booting without the video card in the machine. This way you will know whether it even starts testing for that. If not, the mobo or BIOS is severely screwed, and you may try resetting the BIOS.
thanks.. tried that... nothing worked.. must be a BIOS or mobo error.. only problem is that i dont think this mobo comes w/ a reset BIOS jumper.. if it does im blind cause i cant find it, even when looking at the manual.. if anyone can find out id appreciate the help.. thanks....

 

psianime

Golden Member
Mar 16, 2002
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Whenever my computer won't start it's because one of four reasons:

(1) BIOS settings are messed up and I have to reset the CMOS with moving the jumper.
(2) The mobo died.
(3) CPU got fried or defective
(4) Ram is bad

-psianime
 

cmdavid

Diamond Member
May 23, 2001
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Originally posted by: psianime
Whenever my computer won't start it's because one of four reasons:

(1) BIOS settings are messed up and I have to reset the CMOS with moving the jumper.
(2) The mobo died.
(3) CPU got fried or defective
(4) Ram is bad

-psianime
thx.. ive narrowed it down to that already.. but ive ruled out the RAM cause there are 3 sticks of RAM in here and i doubt they're all bad, and ive tried switching them around...
and i cant reset the CMOS cause it seems this mobo doesnt have a jumper to do that, as odd as that sounds.. i just cant find it...

 

compudog

Diamond Member
Apr 25, 2001
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Look for the BIOS battery and remove it. Wait about 10 minutes and put the battery back it. BIOS should be reset.
 

Texun

Platinum Member
Oct 21, 2001
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Sounds like the board or PSU, hope I'm wrong about the board. Since the hard shutdown is acting screwy I doubt that the cpu or PSU would be the cause.

During the POST, the BIOS needs to load before anything else in order for it to provide any beep codes or video. Beep codes after the BIOS loads will indicate that all is well, or will give you beep clues as to where you should look. If it is not beeping at all then the BIOS is not loading. The problem you described is occurring way before memory and video card are being called up.

As compudog suggested, pull the battery out for a few minutes and then re-install it. And it wouldn't hurt to cross your fingers after that.

What was the last thing he did before this happened? Anything unusual at all?




 

WTT0001

Golden Member
Jan 2, 2001
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If the HS fan is running than it rules out the power supply (pretty much, not completly though). Also, Try dropping 2 of the Ram sticks out and try them one at a time (probably won't help thought).

My best guess is a bad Motherboard and/or CPU. I would recommend swapping the Motherboard with another one if you have one around.

Hope this helps and good luck.

WTT
 

cmdavid

Diamond Member
May 23, 2001
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thx guys for the help.. after pulling out the battery on the mobo for about 15 minutes then restoring it nothing changed.... so im fairly positive its the mobo now through process of elimination.... its not that big a deal, it belongs to some friends and its not like a brand new system, its a PII board so its no biggie, i should be able to get it replaced for free....

What was the last thing he did before this happened? Anything unusual at all?
im not sure, it wasnt at my house when it happened and they're clueless when it comes to computers..:eek:

thanks again guys for all the help and suggestions..

oh yes.. one more question.. i only found one battery on the mobo.. is it safe to assume that was the battery to take out to reset the BIOS??

thx
 

Texun

Platinum Member
Oct 21, 2001
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Originally posted by: sandigga
thx guys for the help.. oh yes.. one more question.. i only found one battery on the mobo.. is it safe to assume that was the battery to take out to reset the BIOS?? thx

Maybe this will help. It is from the Tekram site:
This document details the steps support reps use to troubleshoot mainboards that are "dead". A mainboard is not considered "dead" if any beeps are heard. If the mainboard is producing beeps from the speaker, almost certainly one of the following is true:

1. The memory is not seen, incompatible with the board, running too fast, etc. - LONG BEEPS THAT REPEAT FOREVER. In this situation, try another DIMM if possible, lower the bus speed to see if the memory works, try the DIMM in a different memory socket.

2. The video card is not in all the way - particularly common with AGP cards - or the video card has a compatibility problem LONG BEEP FOLLOWED BY SOME SHORT BEEPS. Make sure the video card is in ALL THE WAY, try a different video card if possible to check for a compatibility problem.

No beeps are heard, board is DEAD:

1. First, remove all cards and DIMMs. Remember all we want at this point is to hear a beep. If we can get a beep, then the board is not dead - it has a problem, but is not dead. There is no need to complicate the situation further with various cards in the system. We do not need any cards or memory in the system to hear a beep. All we need is the CPU inserted and a working speaker connected to the board. *The orientation of the speaker does not make a difference.

With only the CPU inserted and the speaker hooked up, there are still no beeps when power is applied.

Try the steps listed below. After trying each step, power up the system to see if beeps are heard. It is of course very important to determine that the speaker works before hand if possible and that it is hooked up correctly. If beeps are heard at any time, reinsert the RAM. If long beeps that repeat forever are heard, the RAM is most likely either bad or at least incompatible with the board. If there is a long beep is followed by a few short beeps, then reinsert the Video Card. If the same beeps are heard, make sure the video card is in all the way or try another card. Nirvana is reached when only the short, single POST beep is heard. At this point the board should be running normally.

1. Check the jumper settings. If the bus runs at 100Mhz, 133Mhz, etc. try a slower bus speed to see if that produces a beep. Try the "auto" setting if applicable rather than specifying a particular bus speed. Set the multiplier to a slower speed such as 2.5.
2. Check the voltage settings for Socket 7 CPUs.
3. Check the CPU for bent or broken pins or damaged contacts.
4. Reseat the CPU. Take the CPU out and reinsert it, making sure it seats well.
5. Try another CPU if possible. At this point, we just want a beep. It is unlikely that the CPU is bad, but if another one is handy, try that to see if a beep is heard.
6. If the board is an ATX design, remove AC power from the power supply, unhook the power supply cable from the board, reinsert it and apply AC power to the power supply again.
7. At this point, if the system is in a case, take the board out and try it on a test bench setup, anti-static bag on top of case, etc. to check for grounding problems.
8. If possible, try a different Power Supply. Even if the power supply runs and the fan spins, etc. it could still have a problem.
9. If board is still dead, if possible, try another mainboard. Does it work with the same CPU, Power Supply, etc?
10. If none of the above produce a beep, we have hit a wall. There is little else to try and the board may in fact be DOA. In this case, you may RMA the board through your point of purchase or contact Austin Chen at (510) 353-6099 for an RMA number.

TEKRAM

Hope this helps.