New on LowEndTalk? Please Register and read our Community Rules.
All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.
All new Registrations are manually reviewed and approved, so a short delay after registration may occur before your account becomes active.
[PC Hardware Question] How to fix this?
Trying to help a friend to fix her desktop, the motherboard is Asus P7 H55-M Pro, brand new power supply (as the old one is not working) and case, everything else was working before prior to the failure of the old power supply.
Plugged in everything and powered on and now the power light on the front panel of the tower is turned on for a few seconds and turned off, now the tower refused to turn on no matter how many times I tried to hit on the power button. However once I unplug the PC and plug it back in, I can turn it back on and the power light will be on again.
Do you know what is the likely cause of this and is there any steps that I could take to determine the exact cause?
Comments
sounds like maybe more than just the powersupply, there may have a powersurge that killed the power managment on the board. How many watts is the new power supply?
how many watts was the old power supply.
I'm not finding this motherboard model. Is there a battery on the board?
any specific beeps (http://www.computerhope.com/beep.htm)?
the new PSU might not have enough wat to power up the PC, how much watt is the PSU?
I never bother with the motherboard speaker, my mobo has a LCD Poster which is extremely helpful.
@Randy that was my thoughts, but without knowing specs, my guess is not enough watts or power managment on the board is toast
@AsadHaider - sometimes it helps, for example when RAM is placed not accurate
I guess @AsadHaider just throwns them out and buys a new one when something goes wrong.
@gbshouse @24khost I accidentally hit post. Haha naw, I have a lcd poster hooked up to mine so it prints out what the exact error is. I hate those beeps..
yeah, that is what i am guessing too but, i would get 500watt, just to be on the safe side
Old one is 300W (or 350W) and new one is 600W
Nope, no beep at all, which was the unfortunate part...
hmm, it should be more than enough, did you ground yourself first?
http://www.asus.com/Motherboards/Intel_Socket_1156/P7H55M_PRO/
move the read switch on the back to the other side then try it. Works sometimes. Umm otherwise sounds like the motherboard power managment may be smoked. If that doesn't work reseat all cards and ram, and restart computer, see if you can get into the bios.
ground myself?
I think I will just try to start the machine without any thing but CPU and RAM and see if I have any luck there...
human static electricity breaks components of the computer.
try swapping the PSU to another computer and have a go?
yeah when replacing anything you should be grounded. replaceing the powersupply should need to much grounding but touching anything else in the computer, should leave the computer plugged in and your hand on the case at least to groud your self. at minimum if you dont have a wrist strap.
Just humor me and flip the red switch on the back of the psu
The voltage switch? LOL
No way, it will break the PSU and send sparks. LOL do at your own risk .. lol he might be right tho, a flip might work
so i guess all i can do for now is to reset mother board by taking out the board battery and unplug everything that is not needed and hopefully something will work?
Sounds like the motherboard was toasted.
i would test the PSU first on another computer
unfortunately that is the only desktop we have there...
Take a look on http://www.huddysworld.co.uk/index.php/techie-talk/techie-talk-hardware/91-hoe-to-check-if-your-psu-is-working and do "6. "Hotwire" Test"
I have had it happen before where you flip the voltage, and boom it starts working or switch it turn it on, it resets something turn it off, switch the voltage back and it works it really can just be some wierd things. I have seen where a modem card will kill the computer totally not beep codes.
@gbshouse this doesn't check that it is sending the right voltage though.