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Computer help needed please

MANJ_007 Avatar
6y, 3m agoPosted 6 years, 3 months ago
I have a problem with my desktop. It was working fine yesterday and we put the computer into sleep mode. A couple of hours later we moved the mouse / pressed a key on the keyboard and nothing happened. Had to resort to holding the power button down on the tower unit, this turned the pc off. Left it a few minutes and re-started it. The unit powers up but nothing comes up on the screen, also the usb ports arent working (tried charging phone and doesnt do it) - the pc is only a couple of months old. Any suggestins i can try myself before i take it back to the shop under warrenty?

Thanks in advance
Manj_007
MANJ_007 Avatar
6y, 3m agoPosted 6 years, 3 months ago
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1 Like #1
Sounds like the power supply plug has come loose.

If it's still under warranty, best taking it back as you may void your guarantee if you try a DIY fix.
#2
ro53ben
Sounds like the power supply plug has come loose.

If it's still under warranty, best taking it back as you may void your guarantee if you try a DIY fix.


Thanks for the quick reply, it this just a matter of opening the case and pushing the wired in harder? I was trying to avoid taking it back if its not a simple job then looks like im going to have to. Thanks
1 Like #3
The USB ports are the biggest concern really, they are most likely connected directly to the system board and if they have no power then the system board has a fault. It could be a total motherboard failure or just the connector has fallen out.

If there are no tamper seals on the lid/screws, you could take a look. There will be a big white plug on the motherboard, a bit like a big lego brick with a wire coming out the top. It has a tab on the side to clip it in place. Re-seating that is all I would try before taking it back...it could be the whole 5V rail has failed on the MB or in your PSU.
#4
i've had a quick look, everything looks intact. I pressed a reset button in the machine. Did nothing at all. looks like a trip to the computer shop!
#5
What make is it?
#6
ro53ben
What make is it?


It is a custom built pc
i was given the following boxes with the tower
Radeon HD 5770 1GB GDDR5
Asus P6T motherboard - Xtreme phase
Intel core i7 processor - i7-920 lga1336
It has 3 sticks of 2gb corsair xms3 ddr3 ram

Thats all the info i got mate - not too good with comps
#7
some of the usb ports are not"turned on" until the bios initialises, try unplugging all the usb devices and leave plugged in but switched off at plug for 5 mins then try starting without any usb devices attached.
#8
maddogb
some of the usb ports are not"turned on" until the bios initialises, try unplugging all the usb devices and leave plugged in but switched off at plug for 5 mins then try starting without any usb devices attached.


But what about the monitor - nothing comes on there it just says no signal. /ive tried another monitor and same result
#9
Try clearing the cmos;

http://www.cybertechhelp.com/tutorial/article/clear-the-cmos

Clearing the CMOS can be done a few ways. The most common way is to use the jumper on the motherboard. This jumper has two settings. Normal and Clear. Moving the jumper to the Clear setting will erase the settings stored in CMOS. It does not remove the BIOS itself, only the user defined settings within the CMOS. When you clear the CMOS you will most likely see the error message "CMOS Checksum Error" on the next reboot. You can enter the BIOS setup at this point or before and reconfigure the settings.

Another method is to remove the CMOS battery from the system. Removing the battery is usually the second method as it may take anywhere from 15 minutes to 8 hours in order for the CMOS to loss the settings. Once the CMOS is clear, you should know by the "BIOS checksum error, press F1 to continue ", or "CMOS Checksum Error - Defaults Loaded" message at bootup.

You may also be able to clear the CMOS in some cases by forcing a system configuration change. Changing hardware, such as adding or removing a few SIMM's may cause a CMOS error and allow you to proceed to the BIOS setup.

On a few systems it may be possible to clear the CMOS by pressing the Ins key during the power up of the system. Holding the Key down may clear the CMOS and restore the defaults. This may or may not work on your system.

On some boards, it must be moved to the Clear position while the power is OFF, then moved back. If you power on the board with the jumper in the clear position, it can damage the board.

Edited By: Painkiller on Aug 17, 2010 09:41: .
1 Like #10
Don't clear the CMOS - with respect, you don't know what you're doing and you could get yourself in all kinds of mess.

Take it back to the shop, it's what your warranty is for. If you mess around with it, they may charge you to fix.
#11
Problem solved - took it to the shop and they replaced the power supply. Just got to plug it in and try it, Cheers guys
#12
Sorted, had to be a power issue :)
#13
ro53ben
Sorted, had to be a power issue :)


Cheers for the advice fella. Have repped you

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