If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Won't Power Up after Power Outage
We had a power outage today, and my computer hasn't powered up since.
I didn't have a power surge protector for it (yes, my bad). I searched this ng's archives, and it sounds like the power supply may be shot, and that the easiest way to test (since I don't have a multi-meter) would be to pick up a new power supply, and if it doesn't fix the problem, just return the power supply. Before I do that, though, I just wanted to run through what I know in case anyone here has any other suggestions. First, I checked to make sure the outlet was good. It is. I reseated the wires from the power button to the motherboard. The power supply fan wasn't running, so I wondered if there was a fuse in the power supply to check. There was (I was careful not to touch anything metal inside the power supply). I pulled it out, dusted it off, and had a good look at it. It looks fine to me. I put it back and reassembled the power supply. I checked the motherboard manual to make sure the power button wires were in the right spot. They were. Another problem that I think was probably coincidental (but I'm not really sure) is that when I initially tried to power the computer back on after the power outage, the power button broke inside (plastic parts). The part that broke seemed to be only there to hold the button in place, and I was still able to operate the button after pulling the front cover off of the computer. I tried putting a jumper over the two motherboard prongs to which the power button wires led, in case there was anything wrong with those wires, the power button, etc.. I'm not sure if that really tests what I hoped it tested, but in any case it didn't help. The motherboard is an Abit KT7. The power supply is a 300W "Power Man" model # FSP300-60BT. Any thoughts? Is the fact that the power supply fan isn't running a good indication that the power supply is probably the problem? Thanks, Greg |
#2
|
|||
|
|||
Power supply tester's are available (Antec makes one) for less than 20.00-
cheaper than a power supply. No, the power supply fan not working is not a sure indicator that the power supply is the problem. If the unit is not being commanded to turn on, it won't. That command comes motherboard. Try disconnecting ATX cable, removing the battery (considered replacing)- this will clear the CMOS. Check the motherboard for bad capacitors (bulged, leaking, discolored). Test the power supply (get a tester that checks under a load). |
#3
|
|||
|
|||
"Greg Lovern" wrote in message om... We had a power outage today, and my computer hasn't powered up since. I didn't have a power surge protector for it (yes, my bad). I searched this ng's archives, and it sounds like the power supply may be shot, and that the easiest way to test (since I don't have a multi-meter) would be to pick up a new power supply, and if it doesn't fix the problem, just return the power supply. Stupid question . . . have you turned off the power supply, left it turned off for more than a minute, and then turned it back on using it's own external power switch? (not the case power switch, the one on the power supply) I've got a Seasonic power supply that seemed to have died after a power outage. The motherboard wouldn't turn the power supply on anymore. I had to switch OFF the power supply itself, and that seemed to reset it somehow. It's been fine for several months now after that incident. -Dave |
#4
|
|||
|
|||
"Greg Lovern" wrote in message om... We had a power outage today, and my computer hasn't powered up since. I didn't have a power surge protector for it (yes, my bad). I searched this ng's archives, and it sounds like the power supply may be shot, and that the easiest way to test (since I don't have a multi-meter) would be to pick up a new power supply, and if it doesn't fix the problem, just return the power supply. Before I do that, though, I just wanted to run through what I know in case anyone here has any other suggestions. First, I checked to make sure the outlet was good. It is. I reseated the wires from the power button to the motherboard. The power supply fan wasn't running, so I wondered if there was a fuse in the power supply to check. There was (I was careful not to touch anything metal inside the power supply). I pulled it out, dusted it off, and had a good look at it. It looks fine to me. I put it back and reassembled the power supply. I checked the motherboard manual to make sure the power button wires were in the right spot. They were. Another problem that I think was probably coincidental (but I'm not really sure) is that when I initially tried to power the computer back on after the power outage, the power button broke inside (plastic parts). The part that broke seemed to be only there to hold the button in place, and I was still able to operate the button after pulling the front cover off of the computer. I tried putting a jumper over the two motherboard prongs to which the power button wires led, in case there was anything wrong with those wires, the power button, etc.. I'm not sure if that really tests what I hoped it tested, but in any case it didn't help. The motherboard is an Abit KT7. The power supply is a 300W "Power Man" model # FSP300-60BT. Any thoughts? Is the fact that the power supply fan isn't running a good indication that the power supply is probably the problem? It's a real possibility the powersupply "blew" I'd try another one. Also...after a power surge it's possible you will need to reset the bios (there is usually a jumper) I've seen apparantly bad motherborards work fine after the bios is reset also, as far as your switch goes... i would not jumper it...it's designed to be momentary contact |
#5
|
|||
|
|||
Yes. Try another PSU that you know is working. And it's possible you fried
your motherboard with the surge. -- DaveW "Greg Lovern" wrote in message om... We had a power outage today, and my computer hasn't powered up since. I didn't have a power surge protector for it (yes, my bad). I searched this ng's archives, and it sounds like the power supply may be shot, and that the easiest way to test (since I don't have a multi-meter) would be to pick up a new power supply, and if it doesn't fix the problem, just return the power supply. Before I do that, though, I just wanted to run through what I know in case anyone here has any other suggestions. First, I checked to make sure the outlet was good. It is. I reseated the wires from the power button to the motherboard. The power supply fan wasn't running, so I wondered if there was a fuse in the power supply to check. There was (I was careful not to touch anything metal inside the power supply). I pulled it out, dusted it off, and had a good look at it. It looks fine to me. I put it back and reassembled the power supply. I checked the motherboard manual to make sure the power button wires were in the right spot. They were. Another problem that I think was probably coincidental (but I'm not really sure) is that when I initially tried to power the computer back on after the power outage, the power button broke inside (plastic parts). The part that broke seemed to be only there to hold the button in place, and I was still able to operate the button after pulling the front cover off of the computer. I tried putting a jumper over the two motherboard prongs to which the power button wires led, in case there was anything wrong with those wires, the power button, etc.. I'm not sure if that really tests what I hoped it tested, but in any case it didn't help. The motherboard is an Abit KT7. The power supply is a 300W "Power Man" model # FSP300-60BT. Any thoughts? Is the fact that the power supply fan isn't running a good indication that the power supply is probably the problem? Thanks, Greg |
#6
|
|||
|
|||
Also...after a power surge it's possible you will need to reset the bios
(there is usually a jumper) I've seen apparantly bad motherborards work fine after the bios is reset Thanks, that fixed it -- there was a jumper to "Discharge the CMOS". It worked fine after I did that. I reentered my desired BIOS settings, and now all is well. Well, except for the power button, which is now hanging outside the case on its wire because the plastic part that held it in place is broken. But that should be an easy fix (knock on wood). Thanks, Greg |
#7
|
|||
|
|||
|
#8
|
|||
|
|||
"Greg Lovern" wrote in message om... Also...after a power surge it's possible you will need to reset the bios (there is usually a jumper) I've seen apparantly bad motherborards work fine after the bios is reset Thanks, that fixed it -- there was a jumper to "Discharge the CMOS". It worked fine after I did that. I reentered my desired BIOS settings, and now all is well. Well, except for the power button, which is now hanging outside the case on its wire because the plastic part that held it in place is broken. But that should be an easy fix (knock on wood). Thanks, Greg outstanding! glad that did it... it's happened top me several times as far as that broken switch... that's not criticl at all... any momentary contact normally off switch will do the job |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
my new mobo o/c's great | rockerrock | Overclocking AMD Processors | 9 | June 30th 04 08:17 PM |
PSU Fans | Muttly | General | 16 | February 13th 04 10:42 PM |
Happy Birthday America | SST | Overclocking | 333 | November 27th 03 07:54 PM |
Happy Birthday America | SST | Overclocking AMD Processors | 326 | November 27th 03 07:54 PM |
How can I make motherboard to restart after power loss automatically? | Amiran | General | 1 | September 24th 03 11:35 PM |