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P4t533 fans on but no signal to monitor after repair of psu

Tower has been down for at least one year, unplugged and stored. Installed new psu, no fans working when attempted to start up. Fans are running but os not loading? Also replaced cmos battery and cleared settings.

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  • ASUS Master
  • 27,725 Answers

WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Remove the memory modules from their slots. Take the opportunity to clean the slots on the motherboards and the memory module connectors. Use compressed air to blow dust away and clean contacts with a soft cloth. Do not use a metallic vacuum cleaner if it touches any component it may create a short and cause damage to the motherboard or other components. Do not use solvent that may attract dust and never poke things like cotton buds in to slots. lightly rub an alcohol (Methylated Spirits) on a cloth not to hard let the alcohol do the work on the copper gold or silver tabs and r Allow the pins to dry. They will air dry in a matter of minutes. If reseating the memory did not resolve the issue try swapping the location of the memory. If you have only one stick of memory in the computer try moving it to another slot and then boot the computer. Check the memory module and memory slot contacts. They are either copper tin or gold. The colour will tell you which they are. Mixing tin and gold can result in corrosion that prevents proper contact. Look for any sign of physical damage to the memory module, memory slots or the motherboard. Reseat the memory modules. You should hear an audible click when they are in place. Do not use too much force to reseat the memory module in to the slot this can cause damage to the module, slot or motherboard. The hardware that you are trying to access is damaged or failing.


The device drivers for the hardware are faulty or incompatible. Could be a problem with the Hard Drive or the Hard drives PCB http://www.onepcbsolution.com/ There is a connection problem such as a bad cable for internal hard drives
Test all power and data leads that attach to your hard drive IDE,SATA
the leads from your MOTHERBOARD TO THE HARD DRIVE make sure they have a secure dust free connections and are not faulty or just replace them they could be faulty if its a flat 40pin ide this will be the first to fail Make sure all leads that are attached to your drives dvd\cd and floppy (If Applicable) have secure connections and are not faulty. or just replace them they could be faulty a computer needs power and data to travel through every working device and continue its cycle and have an end so any faulty leads will end up with a computer error

Hope this helps.

Posted on Jan 14, 2013

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Posted on Jan 02, 2017

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var-pun
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SOURCE: turn on computer fans run a second shut off i unplug cpu power supply then run

may be the connection to the smps is not right 

or may be the fan blew out

Posted on Sep 06, 2008

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SOURCE: emachine t5026 not power on. replaced psu.

I would test the memory. Also I think some computers will shut down if the fan on top of the CPU quits working. Or maybe one of the other fans or the Hard Drive quit and is drawing too much juice causing the PSU to shut down. It sounds like something may be grounding.

Posted on Jan 02, 2009

byteguy
  • 2229 Answers

SOURCE: No video on new Gigabyte GA-MA770-DS3 motherboard

There are a couple things that you need to look at. The first is your power supply. I've had computers seeming to run fine with no video. Turned out to be bad power supplies.
Does your video card require a power connection? Many high-end video cards need an external power connection. If the card has a power connection, use it.
Have you gone in and checked the cmos settings? What does it say (if anything) for the default video?
Now remove all connections to drives (hard drive and CD and try for video. Try it.
Next, if possible, swap out memory.
After you've tried everything (including maybe burning incense), time to try a new motherboard.

Posted on May 27, 2009

  • 1 Answer

SOURCE: green light blinking on back of my system unit but there is no power

I had this problem and i tried everything to make it work. Now all i do is put a hairdryer at the back whilst the computer is plugged in until the light stops flashing then switch on as normal. I also noticed that when the air is warm i do not have to use the hairdryer hopes this helps.

Posted on Jun 02, 2009

sys_admin
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SOURCE: PC does not POST

Hi Do you have an onboard or addon Display card . Try reinserting the card if its an addon card.

Posted on Jan 17, 2010

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