Question about MSI 945GCM5 Motherboard

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New motherboard and cpu: no post

I installed the cpu and fan as usual and when I plug the psu in the fan spins briefly and stops, spins breifly and stops.

disconnected everything and still does same thing. I tried different psu and same problem

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I have encountered that kind of problem before in the AMD processor. When your turn on the switch the fan is spins and then suddenly stop. The processor is shorted or there is defective parts you need to return it to the supplier. But can you check first if the motherboard and the processor is match . Maybe the motherboard cannot carry the speed of the processor it's better to ask to the supplier or ask them to test both the processor and motherboard .

Posted on Apr 17, 2008

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Show all solution to d945plrn motherboard problem not powering up


PSU IS OK? You're sure? You tested the 3 main voltages coming out?

DON'T rely on; "The LED lights are on, and the fans spin, so therefore the PSU must be good.

1) If ALL the LED lights were on at once, they would use less than 1 Watt of power.

2) EACH fan uses 2 to 3 Watts of power.

3) A typical Processor uses 51 to 125 Watts of power.

With a Power Supply that has a weak voltage power rail, you will see LED's light, and fans spin; BUT not enough power to turn the Processor on.

Power Supply also needs to be plugged into motherboard to test, because you need a Load on the Power Supply.

PSU is KNOWN to be good? I mean KNOWN.
Not, "It's brand new so I know it has to be good"
Okay, moving on.

CPU OK?
How did you test it? Install on another working motherboard?

Are the Electrolytic Capacitors on the motherboard good?

http://capacitorlab.com/visible-failures/index.htm

http://www.youtube.com/watch?v=Lut7MX5Dd_A

Capacitors on the motherboard are used as Filters, and Voltage Regulators.
The ones used as Voltage Regulators are in the Motherboard Voltage Regulator Circuit,

http://www.hardwaresecrets.com/article/616

Part of what the Motherboard Voltage Regulator Circuit does, is to regulate voltage for the Processor. (CPU)

The CPU MUST have a steady, 'clean', supply of voltage, and it MUST be kept within the Processor's voltage tolerance range.
Too much, or too little, and the CPU shuts off. BIOS turns it off.

(CPU stands for Central Processing Unit. Another term used is Microprocessor, or simply Processor for short.
I know you are aware, just posting for all those who read the solution in the future)

http://downloadmirror.intel.com/15140/eng/D945PLRN_ProductGuide02_English.pdf

[Better motherboard due to the Intel Q965 motherboard chipset,

http://www.ebay.com/itm/INTEL-DQ965GF-CORE-2-DUO-LGA775-SOCKET-P-4-MOTHERBOARD-I-O-FACEPLATE-INCLUDED-/290863623024?_trksid=p2047675.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D11%26meid%3D5685984037376928917%26pid%3D100011%26prg%3D1005%26rk%3D1%26sd%3D330632928551%26

http://en.wikipedia.org/wiki/List_of_intel_chipsets#Core_2_chipsets

Scroll down to Q965 in left column ]

For additional questions please post in a Comment.

Regards,
joecoolvette

Feb 18, 2013 | Intel D945PLRN Motherboard

1 Answer

Motherboard flashes when power cord plugged in


I had the same issue with the same mb. The cpu has gone bad. rare, I know, but it happens.

Dec 15, 2009 | ASUS A8V-VM SE (MB-A8VVMSE) Motherboard

1 Answer

Connecting my PSU to my Motherboard


The bare essentials to start a computer are PSU, Motherboard, CPU, RAM and Video.

Its possible the PSU arrived DOA. Though I've only had 2 DOA PSU's in the 15 years I've been building custom computers.

Hope this helps.
Mary

May 21, 2009 | ASUS P5QC Motherboard - Intel P45, Socket...

1 Answer

Asus P5Q-VM CANT BOOT


CPU Should work with board.Try removing cpu and replace in socket check for bent pins if all is well..reinstall.make sure to use pad or silver paste and reinstall fan.rebootRichardm69

May 05, 2009 | ASUS Motherboards

2 Answers

Asrock P4i65G Motherboard


If the CPU is dead the problems can be
  1. no power
  2. no fans etc or
  3. power, no beeps (errors)
If the Ram is not compatible it would be constant beeping.

With the board in, and power supply 20pin + 4pin Pent 4 power attached,(#2 and #7 of motherboard layout) remove power cord from power supply.
CLRCMOS0 allows you to clear the data in CMOS. The data in CMOS includes
system setup information such as system password, date, time, and system
setup parameters. To clear and reset the system parameters to default setup,
please turn off the computer and unplug the power cord from the power
supply. After waiting for 15 seconds, use a jumper cap to short 2 pins on
CLRCMOS0 for 5 seconds. Remove the jumper. Remove heatsink and fan from CPU. disconnect cpu and reseat it. Re-install heatsink and fan. Plug in the power cord. Try to boot up. If it still does not boot and (no power, no fans etc.) problem would then be cpu is fried.



Jun 02, 2008 | Motherboards

1 Answer

No video input


Is your CPU fan spinning? If so, check the coolant (silicon gel (aka Nano/Thermal grease)) between the CPU and the fan (if there isn't much there, or it has dried up, you'll need to replace it). Additionally, check the new PSU is the same voltage as the previous one (e.g. 230, 400 etc), and if applicable, that BOTH power cables are plugged into the board (some boards require both the large one, and a smaller 4 pin cable be plugged in). If you've checked these, and the fan is spinning, it's possibly a problem with the board (as could be the case if you've checked the above and the CPU fan is NOT spinning). The reason I say this is that when PSU's go, they sometimes tend to take the board with them (especially as in this case, with the drives and video card not receiving power either).

May 29, 2008 | ASUS A7S333 Motherboard

3 Answers

Fans runs but no post,no beeps.


The best advice I can give you is to remove the motherboard battery (UNPLUG THE PSU BEFORE YOU WORK ON THE MOTHERBOARD) and let the system sit for about an hour. If the CMOS settings are corrupted, removing the battery will erase the corrupted data in the CMOS, which will automatically reset the CMOS to the default settings... Then, plug the battery back into the motherboard, and try to boot the system...

If that doesn't work, you should disconnect EVERYTHING attached to the PSU, and remove ALL of the add-in cards (modem, NIC, soundcard, TV tuner, whatever you have), and install ONLY the CPU, the heatsink/fan (don't forget to PLUG THE CPU FAN IN), ONE stick of RAM... you get the idea. DISCONNECT the HDD, the FDD, the optical drive, and ANYTHING ELSE from the PSU. When you're ready to test the system, you should have ONLY the CPU, the HSF, and one DIMM plugged into the motherboard. Attach the PSU connectors (both the main ATX connector AND the auxiliary 4-pin 12-volt connector) to the motherboard, and try to boot the system. If it works, SHUT DOWN and UNPLUG THE PSU; then install ONE component (the floppy drive, for example), reattach the PSU, and reboot the system. If the system POSTs, shut down, unplug, and add another device. If the system does NOT complete the POST process, the last piece of hardware you installed is probably the culprit.

Take your time with this; be methodical, and make GOOD notes about the steps you've followed, so we can help you work through this problem...

Best of luck to you; keep us "posted" on your progress...

Jan 27, 2008 | ASUS P4P800 SE (890552603657) Motherboard

1 Answer

M7VIG-400 NOT POWERING ON


possible cause: 1.low supply of voltage try checking your Power Supply Unit(PSU). try to swap with a different good PSU. 2.Defective/burned Motherboard, check for any bloated Capacitors or burned chips...

Sep 09, 2007 | Biostar M7VIG-400 (M7VIG 400-COMBO4)...

4 Answers

DDR PC3200 displays no video on LCD and Out of Range on CRT


if you are having trouble with the memory, if i remember rightly, to the right of the memory slots are a long black stip jumper which has to be removed to use DDR memory.

Aug 03, 2007 | Syntax SV266M Motherboard

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