Question about E-Machines T2642 PC Desktop

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Old emachine T2642 will not boot...disk monitor LED stays on and CPU fan does not rotate...no boot access to CD-ROM, or disk drives...changed power supply...think it might be BIOS backup battery...

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  • ronnyharris Dec 21, 2008

    OK thanks...sounded like dead mobo to me too...CPU fan doesn't rotate and no disc access so recovery discs of no use....can't seem to find CMOS battery...duh...

    ron

  • zabrina liang May 11, 2010

    Are you telling me you have no reinstall or emergency recovery disk??

    If the CPU fan is not rotating, it would more than likely have something to do with the the hardware and not the operating system.

    If you are not getting anything, it's probably its time to die. You can salvage any workable parts, but it is not the CMOS battery. That is only if the date settings is not working.



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It sounds like a dead motherboard. Try removing the CMOS(BIOS) battery and replacing it. Then try removing and replacing the CPU as well. If you get the same result then you might be looking at replacing the motherboard.
Regards

Posted on Dec 20, 2008

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Could do with more info here
1.) Does the machine power up (ie is the power lED lit and are there signs of activity such as the cPU fan running, hard drive actuating and lights to the DVD rom drive, if not, worth checking the pSU is giving out power, the easiest way of which is to substitute a new PSU.


2.) Can the computer access the Bios (F1 or Del or F2)? If it can, does it "see" the hard drive and DVD rom?

3.) Are there any beeps when it tries to start up? If not, the cPU is most likely dead

can you clarify any additional symptoms if (1) does not solve them

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With what you say you've tried already, I'm thinking you might have a bad processor. Most every other problem would result in some kind of error like POST beep codes or messages on screen. If the system still doesn't boot with the bare minimum parts installed, replace the processor.

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Did you flash the main board ??

1.) remove battery
2.) press and hold the power button for 10 - 30 seconds
3.) replace battery.
4.) when the system boots it will say press XX (e.g F2) to load defaults and continue ,, press that key.

It could also be the power button is stuck!.

find were it connects to the main boad and unplug it
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T2642 Emachine upgrade,can you recamend parts that are compatable 1GM memory. Hard drive 160 MG Viteo memory over 128 GB Thanks


Use this site to help you upgrade you T2642 e-Machine. The link shows what can be upgraded. Includes max memory the system can run;
http://www.cputopia.com/emachines-motherboard-case-cpu-replacement-t2642.html

Hope you find this helpfull.
Mike

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Blinking on and off


No offense, Tyson, but would you mind explaining your question a bit better? You wrote "when i out the power cable in it"and that really confuses me. Did you unplug the power cable or did you plug it in?

Also, how long ago did this happen? Was there anything you can think of that may have caused this problem?

If the CPU fan is not rotating, you may have a problem with your power supply.

I am guessing your system is powering on, but not showing anything on the monitor.

Try removing every thing from the computer, starting with the power cable. Then add back only the monitor and turn it back on. If it works, one of the items you left unplugged is causing a problem.

If that does not work, again remove the power cable and open the case. Remove all expansion cards other than video, disconnect all of the drive power and data cables (CD, DVD, hard drive, etc.) then plug in only power and monitor to see if you get anything.

If still no go, unplug power cable, carefully remove the RAM and put it exactly back where it came from. At this point, if you still get nothing you are down to 4 components:
motherboard
power supply
CPU
video card

If the CPU fan is still not spinning, I would suspect it is the motherboard or power supply. Get a can of air and blow out the CPU fan to make sure it rotates easily.

Let me know if you need more help.

Honest1abe

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Try telling it to boot the CD instead of the disk for now, since you need to install from that...or perhaps a newer OS.

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Have you installed any additional ram lately?

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