need help

[Wintermoot]

I recently tried to replace the HDD on my parents PC and for some reason it won,t turn on the LED on the MOBO still works but the on/off switch doesn't work need help!

 

[SnowyGamester]

Well it isn't a hard drive problem...you've either broken something or unplugged something. Go through all the connections and make sure they're connected properly...since the mobo is getting power it might be the connection to the switch. Failing that, seek professional help.

 

[MercurySteam]

So it's not POSTing? That's weird cause even without a working hard drive, the BIOS should still come up. Did you disconnect anything else?

 

[Wintermoot]

So it's not POSTing? That's weird cause even without a working hard drive, the BIOS should still come up. Did you disconnect anything else?

I had everything connected I already tried running just the MOBO (IE only having the MOBO,PSU and switch connected)

 

[Wintermoot]

Well it isn't a hard drive problem...you've either broken something or unplugged something. Go through all the connections and make sure they're connected properly...since the mobo is getting power it might be the connection to the switch. Failing that, seek professional help.

I shall look into it I still have a fall back computer who,s switch I can use

 

[MercurySteam]

So it's not POSTing? That's weird cause even without a working hard drive, the BIOS should still come up. Did you disconnect anything else?

I had everything connected I already tried running just the MOBO (IE only having the MOBO,PSU and switch connected)

If it was booting before then you've probably done something. If the button that turns the computer on doesn't work anymore then make sure the I/O connectors are in properly otherwise the power and reset switches won't work.

 

[SnowyGamester]

I doubt the switch(button?) would have broken, you may have just loosened the connection to it. If you check it and it doesn't fix the issue, you've probably got worse problems

 

[Wintermoot]

So it's not POSTing? That's weird cause even without a working hard drive, the BIOS should still come up. Did you disconnect anything else?

I had everything connected I already tried running just the MOBO (IE only having the MOBO,PSU and switch connected)

If it was booting before then you've probably done something. If the button that turns the computer on doesn't work anymore then make sure the I/O connectors are in properly otherwise the power and reset switches won't work.

I left those connected when I worked on it I,m afraid I fried the MOBO (I forgot to discharge myself) is there a way to check that?

 

[tharglet]

Unplug the harddrive and reboot it, and see if it gets to the point where it tells you there is no OS to boot. If so, then it's time to check the hard drive and its connectors. If it's IDE (and not SATA), and not a notched cable, I've seen this happen when the cable is upside down.
Next, check you plugged in the power cable (This is for both SATA and IDE). Without the power, the PC may not like it.
If it's IDE, check the back of the drive for the jumper. If there is one, make sure it's on cable select. Makes things easiest.
If it tries to boot, and the above didn't fix it, you'll want to see if the disk is dead. If the PC is not POSTing any more, then you may have another issue.

If the power button has ceased to work (as in holding it down for 5 secs won't force the PC off), find the cable that runs from the front of the case to the motherboard, and check all the end bits are plugged in properly (give 'em a gentle shove to make sure they're on properly). If more than one has decided to liberate itself, you will want to check the mobo manual to get them in the right places.

 

[Wintermoot]

I doubt the switch(button?) would have broken, you may have just loosened the connection to it. If you check it and it doesn't fix the problem, you've probably got worse problems

checked it didn't work

 

[tharglet]

I left those connected when I worked on it I,m afraid I fried the MOBO (I forgot to discharge myself) is there a way to check that?

I'm yet to meet someone who's actually managed to fry a mobo from doing that. Two I've had die, one got fried by a PSU fault and the other I think slowly got faulty, and then a swift kick to the case hastened its demise (was never a very good mobo).

Years ago my brother accidentally used the wrong screws when building his first PC. Tried to power it, and it instantly turned back off again. He found out what he messed up, and the mobo survived that episode ^^.

 

[MercurySteam]

So it's not POSTing? That's weird cause even without a working hard drive, the BIOS should still come up. Did you disconnect anything else?

I had everything connected I already tried running just the MOBO (IE only having the MOBO,PSU and switch connected)

If it was booting before then you've probably done something. If the button that turns the computer on doesn't work anymore then make sure the I/O connectors are in properly otherwise the power and reset switches won't work.

I left those connected when I worked on it I,m afraid I fried the MOBO (I forgot to discharge myself) is there a way to check that?

Electrostatic discharge is a pain in the ass because you can never tell when you've stuffed something up. Your issue is that it's not powering up, yes? The only things I can think of is that the I/O connectors have come out, the ATX power plug for your mobo is unplugged or your PSU has shat the bed.

That's about it, really.

I have power and reset buttons on my actual mobo, though you probably didn't custom build yours so I don't really know what to do.

 

[Wintermoot]

So it's not POSTing? That's weird cause even without a working hard drive, the BIOS should still come up. Did you disconnect anything else?

I had everything connected I already tried running just the MOBO (IE only having the MOBO,PSU and switch connected)

If it was booting before then you've probably done something. If the button that turns the computer on doesn't work anymore then make sure the I/O connectors are in properly otherwise the power and reset switches won't work.

I left those connected when I worked on it I,m afraid I fried the MOBO (I forgot to discharge myself) is there a way to check that?

Electrostatic discharge is a pain in the ass because you can never tell when you've stuffed something up. Your issue is that it's not powering up, yes? The only things I can think of is that the I/O connectors have come out, the ATX power plug for your mobo is unplugged or your PSU has shat the bed.

That's about it, really.

I have power and reset buttons on my actual mobo, though you probably didn't custom build yours so I don't really now what to do.

thanks! the PSU turned out to be faulty good thing I have a spare lying around!

 

[Something Amyss]

Ad today's "out of context award:"

Failing that, seek professional help.

XD

But seriously, it sounds like something loose. Recheck your connections.

Failing that, seek professional help.

 

[Wintermoot]

FIXED IT! the PSU turned out to be broken replaced it and works now!

 

[MercurySteam]

thanks! the PSU turned out to be faulty good thing I have a spare lying around!

Congrats mate. Glad I could help.

 

[thethingthatlurks]

You could measure if the PSU is even supplying power by connecting a lightbulb (or better, a multimeter!) to the connectors. I know this doesn't sound like a wise plan, but the power coming out of it isn't much of an issue. If you're getting power, the next step would be checking mobo connectors, and especially the power button connector (usually bottom right of the mobo, check the manual). I don't think it's terribly likely that you destroyed the mobo via discharge, but it's not impossible either.

Edit: Ok, never mind. I'm glad it all worked out for you!