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#1
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Desktop Compaq Presario
A few weeks ago I gave some friends a 4 yr old Presario and hooked it up for
them with a Sony monitor. They had gotten on line and were using it successfully for a couple of weeks when their power went out. When the power came back on the computer showed a black screen. Nothing was coming up. What I would like to know is: if a computer CPU is damaged by an electric surge, what components are usually damaged and unrepairable? Thanks for your response. Derek |
#2
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Desktop Compaq Presario
Derek Lawler wrote:
A few weeks ago I gave some friends a 4 yr old Presario and hooked it up for them with a Sony monitor. They had gotten on line and were using it successfully for a couple of weeks when their power went out. When the power came back on the computer showed a black screen. Nothing was coming up. What I would like to know is: if a computer CPU is damaged by an electric surge, what components are usually damaged and unrepairable? Thanks for your response. Derek First, did you turn the computer back on. If the computer loads Windows fine (You hear the Windows Chime) but no picture, try a different monitor.) Second, is the computer plugged in a Surge Protector or the wall outlet? There is no way to tell what components are damaged in the newsgroup. Even a bad outage could head no problems and a small outage could cause damage. |
#3
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Desktop Compaq Presario
They already tried using a different monitor to no avail.. The unit was
plugged into a cheap surge strip. We took the cover off the tower to see if any obvious burn marks were present but there was no evidence of overheating. We will take it to a local repair shop and have them look at it. It would be a good thing if there were fuses that could be replaced but for some reason they aren't designed that way. Thanks for the reply. Derek |
#4
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Desktop Compaq Presario
When the power came back on, there was probably a power spike that jolted some
part of the computer. I'll assume that the power supply is bad and needs replacing. If the power supply is of good quality, a fuse inside blew out, and the rest of the hardware is OK. If replacing the power supply does not do it, you're faced with replacing components one at a time until the system runs. Modern Presarios use standard power supplies, so testing it with another power supply is the best step to take... Ben Myers On Wed, 29 Nov 2006 12:42:14 -0500, "Derek Lawler" wrote: A few weeks ago I gave some friends a 4 yr old Presario and hooked it up for them with a Sony monitor. They had gotten on line and were using it successfully for a couple of weeks when their power went out. When the power came back on the computer showed a black screen. Nothing was coming up. What I would like to know is: if a computer CPU is damaged by an electric surge, what components are usually damaged and unrepairable? Thanks for your response. Derek |
#5
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Desktop Compaq Presario
Thanks Ben. We still have it at home so might try checking each component
for continuity, resistance etc. ----as if we know what we're doing. Wish there was a salvage yard for computers to go to the way we do with cars. There are probably quite usable parts we could cannibalize. Derek |
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