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Author Topic: motherboard problems  (Read 2678 times)
paula
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« on: January 21, 2005, 02:10:24 AM »

Hi all,
  I am having a problem I hope someone can help with. I have the motherboard: esc 848-p and I tried putting in a sound card. When I pushed it into the slots the motherboard buckeled and now when I turn it on the fan on top of the cpu chip tries to start but then the power cuts off. I tried resetting the fuse switch in the back but it didn't work. Did I kill the motherboard?
Thanks, Paula
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Ageless
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« Reply #1 on: January 21, 2005, 09:31:48 AM »

What do you mean, the motherboard 'buckled'?? Did it break? Or did it just bend and swap back? Mobo's are pretty sturdy, they should be able to take that strain, yet if you inserted the card right after you shut down, while the motherboard was still hot, you may have ruptured something.

If you get no POST (Power Up Self Test) beep while all the lights are on, but no-one is home, then yes, you may have damaged & killed your motherboard. Yet check all the connections on the motherboard first, power connections I mean. Try to loosen them and re-inserting them. Also try to take out your soundcard, see if the PC will boot up then. If it does, it's more of a power issue, where the PSU is not strong enough to power the extra hardware.
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paula
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« Reply #2 on: January 21, 2005, 04:00:31 PM »

The motherboard snapped back but I heard a pop too. Now all I get when I turn on the power is the fan tries to start but then shuts off. I get no beeps or anything else. Do you think I hurt the cpu chip as well?
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Ageless
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« Reply #3 on: January 21, 2005, 04:43:11 PM »

No beeps sounds like a dead motherboard. The CPU doesn't need to be damaged though. Yet the only way to test that, is by inserting it in another motherboard and boot it up.
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paula
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« Reply #4 on: January 21, 2005, 06:08:00 PM »

Thank you. I will try that tonight.
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paula
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« Reply #5 on: January 21, 2005, 09:34:06 PM »

Okay. What I did was put a new motherboard in, but when I turn on the computer it does the same thing. The fan starts but then shuts right down. I put my cpu chip in my son's computer and it worked so I ruled that out. Could it be the power supply?
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Ageless
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« Reply #6 on: January 22, 2005, 01:24:17 AM »

You may as well consider that the motherboard isn't really in hardware heaven then as well. Could it be the PSU? Yep. Although I have to wonder how that got damaged from inserting a soundcard & buckling the motherboard. Unless you left the power on? (I'll say you're a lot brighter than that, so dismissing that Smiley).

What could've happened though is that you didn't discharge yourself correctly, thus sending an electrostatic discharge through the motherboard to the PSU, which blew the fuse inside the PSU. Don't even try to repair that fuse, please. A PSU holds deadly amounts of static electricity for up to 2 years after it has been removed from a PC and put on a shelf. The capacitors take a long time to discharge. It's cheaper to buy a new PSU, than to lie in the hospital... or worse. Okay?

It's also well possible that the PSU is just underpowered. You didn't specify what kind of soundcard you inserted in the PC, didn't say what other hardware there is in there. But if you're running, say, a 250W PSU, you may just be underpowered for the amount of hardware you have. So go for a new PSU, and go for a bigger one (in power, size doesn't matter... they say Smiley). Something in the order of 350 to 400W should keep you on the safe side.
« Last Edit: January 22, 2005, 01:29:23 AM by Ageless » Logged

Jord.
paula
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« Reply #7 on: January 22, 2005, 01:57:57 AM »

Jee, I have a 450psu but I think your right, because I put a new motherboard in it and the same thing happened. I tried the cpu like I said and it's fine. The only thing I can think of is that I was charged and blew it. I reordered another psu, 450w, so we'll see if that works. I can't think of what else it could be.  The sound card that I have is a generic one. I want to get a better one. I have 512 ram, cd-rw, and a 3.5 floppy. The machine was working fine until I tried to put in the sound card. I appreciate your help. Anyother ideas will be welcome.
Thanks again, Paula
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« Reply #8 on: January 26, 2005, 04:04:33 AM »

If the PSU fan spins up on BOOT...then it's not the PSU.

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soundofkia
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« Reply #9 on: January 26, 2005, 05:59:19 AM »

Same thing happened to me one time.  put a video card in my computer and got the same symptoms. I replaced the mainboard, CPU, and power supply with no luck. I finally found the problem to trace to the hard disk. My assumption is that I was not grounded as well as I thought and sent a charge through the computer.  Even after replacing the above nothing worked, so I started removing other devices.  Finally, when I unpluged one of my IDE drives, all was well. My old mother boeard and CPU even still works as long as I don't use that drive.
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paula
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« Reply #10 on: January 26, 2005, 06:53:13 PM »

Thanks. That gives me something new to think about. I'll try it.
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paula
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« Reply #11 on: January 28, 2005, 02:28:30 AM »

Well I replaced the motherboard, and psu and now I can get any power on boot up at all. I removed all the drives the only thing I have connected is the ram and a video card. Now what?
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« Reply #12 on: January 28, 2005, 12:20:49 PM »

Have you tried another power cable to the PSU, and more importantly, another power outlet wall-socket?
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Jord.
paula
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« Reply #13 on: January 28, 2005, 05:39:03 PM »

no I haven't but I will.
Thanks
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paula
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« Reply #14 on: January 30, 2005, 06:49:55 PM »

I fixed it finally with all your help. I want to thank you all for giving me ideas. It was motherboard after all. When I replaced it with the new it didn't work but I removed everything and started from scratch and it powered up. Needless to say from now on I'll be extra careful when replacing parts.
Thanks again.
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