Question about MSI 845GE Max-L Motherboard

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MSI 845GE MAX Mobo fans on but no signal to monitor

The computer started making strange clicks upon boot, seemingly from the ATX power button area. Then it stopped working completely- that happened on a very hot day. I tried changing many components, but the power tested OK. Now the fans go on but there is no signal to the monitor from any of the graphic cards I tried. Could it be the cpu? Oh and while fiddling with it I forgot the MSI 533 heatsink unhooked and powered it. Could that have harmed the Mobo? Thanks.

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  • 2 more comments 
  • Vee Tee Sep 25, 2009

    Thanks map9966. I will check these things. What is the function of the 5 v. supply to the start-button assembly? That may be the key to the problem.

  • Vee Tee Sep 26, 2009

    I checked the HD on another system it was fine. The fans started turning when I used a screwdriver to contact the pins directly on the motherboard, but still no video signal whatsoever. Assuming the various graphic cards I tested were OK would that indicate that the cpu or the motherboard (or both?)were beyond repair?

  • Vee Tee Sep 26, 2009

    I checked the HD on another system it was fine. The fans started turning when I used a screwdriver to contact the pins directly on the motherboard, but still no video signal whatsoever. Assuming the various graphic cards I tested were OK would that indicate that the cpu or the motherboard (or both?)were beyond repair?

  • Vee Tee Nov 02, 2009

    The cpu tested all-right on another motherboard- so my conclusion was that the MB has had its day, and I threw it away. RIP in silicon heaven.

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  • Master
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Consider the location of the clicks you heard. The hard disk drive (s) are quit close to the power on button. These clicks could point to a bad hard disk drives spindle or a poor wire connection at the power button.
In either case the first question is did your hear your system P.O.S.T.?
Before you lost display! Normally, if the CPU gets too hot two things happen. 1st your hear what sound like a siren from the internal speaker & than the CPU will shut down the system so the CPU doesn't fry. If there is a problem with your power on button, AKA clicking. Check the wires from the button to the motherboard. Make sure their isn't a bad wire. There's only 5v DC running to the power on button. I doupt you'ed even hear a 5volt short.
If you have an OHM meter you can check the on button. You'll need someone to press the power button off & on. Do this with the power supply unpluged. Your checking ohms not volts. If possible check your drive (s) in another system.

Posted on Sep 25, 2009

  • Mike Peluso
    Mike Peluso Sep 29, 2009

    The function of the 5volts supplied to the power on button completes the circuit when the power on/off is pressed. You completed the same by using a screw driver to complete the circuit to start up power to the motherboard. All front panel MB pins, HHD Led, Power On Led, Reset Led & speaker. Use 5volts to complete the circuit & supply light to the case Led's.

    I have a few more suggestion for you to try. Pull your cmos battery & check the voltage. It should read 3volts DC. If it reads less than 3 volts replace the battery. The only way to check if your CPU is bad would be to replace it with a known good CPU. Lastly, you will most likely pull the MB from the case if all else fails. Test the mother board after removing from your case. Set a couple phone books onto a table & connect everything. Video, HDD, memory, & CD/DVD-ROM drive. Connect your PS to board & your monitor. Power up the MB. If your board does boot & you have display, chances are there was a short between MB & case.

    Here is the link to your MSI MB;

    http://www.msi.com/index.php?func=downlo...



    Mike

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Power button does not light, fans run but computer does not send signal to monitor. Replaced power supply, no change. Put in new graphics card, still does not generate video that would allow me to change...


no HP PC stated just a MOBO. must we guess?
no the power button is just 2 wires, a digital line and ground
it must be plugged in to the correct MOBO jack.
in fact i can turn it on with a simple jumper wire, there.
i guess you found the board, in garage sale, just tossed in a box?
if the local vga jack and added in VGA card both fail then its a mobo issue.

im googling for you.
lets see what POPS
Compaq Brio ATX PGA370 New D7580-60003 *
This motherboard is only compatible with Celeron 400 CPUs
With integrated SiS Super AGP graphics controller?
takes 1 good RAM stick.
if the fan fails to stay on, that means the PSU sees errors.
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that one old mobo is rare, now.
is the coin cell at 3vdc, or below 2.9v, if yes, needs new one.
HP has zero data (information) on this old mobo or the COMPAQ BRIO anything.



https://www.youtube.com/watch?v=3at_Ev2kOoI

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My hp pavillion a1540n won't boot up. The power button is on but no boot menu on the monitor. Monitor is blank


I suggest you check the Power Supply. Bad Power Supply, weak Voltage power rail.

1) ALL the LED lights use less than 1 Watt of power.
2) EACH fan uses 2 to 3 Watts
3) A typical Processor uses 51 to 125 Watts. Depends on what Processor it is. (Older one's use less)

The HP Pavilion a1540n specifications state it uses an AMD Athlon X2 4200+, processor.

(2.0GHz. Dual Core. Built upon the Windsor Core. Uses a Socket AM2 processor socket)


HP Support > Pavilion a1540n desktop computer > Specifications,

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00679533&tmp_task=prodinfoCategory&lc=en&dlc=en&cc=us&product=3184140&lang=en

Can use up to to 89 Watts,

http://en.wikipedia.org/wiki/List_of_AMD_Athlon_64_microprocessors#.22Windsor.22_.28F2_.26_F3.2C_90_nm.29

Enough power for the LED lights, and fans, but Not enough for the Processor.

No Processor operating, No computer.
No computer, No Signal to the monitor.
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The Power Supply used is an ATX style, and 300 Watts.

A computer only uses the power it needs, and No more.
If you install a Power Supply with more Wattage than the original, it will be fine.

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