PSU or motherboard problem?

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DDM2592

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Jul 4, 2013
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I recently bought a new motherboard, PSU and chassis.
Motherboard: MSi H77MA-G43
PSU: Corsair GS600
Chassis: Coolermaster Elite 430

I installed the components including my current cpu (i3 3.1ghz) and current gpu (Nvidia N210 1GB (upgrading to HD7870 soon)). Now to my problem. After connecting up all the components and quadruple checking that everything is connected correctly I push the boot button and nothing happens, could this be a PSU problem or motherboard problem?
 
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aredflyingbird
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aredflyingbird

aredflyingbird

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Dec 3, 2012
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It can be multiple problems, you might of have damage the CPU pins on the motherboard, faulty PSU, RAM is faulty/not installed correctly (make sure the RAM is fully seated), fried/faulty motherboard. Are you sure everything is connected, CPU 4/8 pin power, 24 pin motherboard....

-on a side note, did you flip the switch on the back of the PSU to l?
 
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DDM2592

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Hahaha yes I did flick the switch on the back of the PSU, RAM is installed properly, checked the 4/8x pin and 24x pin cables. Fearing it's the CPU pins
 
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aredflyingbird

aredflyingbird

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What's your CPU name?
 
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DDM2592

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Intel i3 3.1Ghz 2100
 
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aredflyingbird

aredflyingbird

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I found your problem, the motherboard you purchased only supports 22nm CPU's. The i3-2100 is 32nm. You might of picked the wrong chipset. z68 is what your looking for, unless you decide to buy a new CPU.
 
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DDM2592

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New CPU it is, was going to get one anyway at some stage
 
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loosescrews

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This is wrong. H77 boards are completely compatible with 32nm Sandy Bridge CPUs.


Here are my usual troubleshooting steps with a new build that won't power on:

First, unplug the main PSU connector from the motherboard. Then short the green wire to any black wire with a paperclip. If it turns on, your PSU is most likely fine.

Next, reconnect the PSU to the motherboard and disconnect everything from the motherboard that isn't needed. Only use one stick of RAM. Test it.

If that doesn't work, disconnect the $ or 8 pin CPU power cable from the motherboard. Test it. The computer won't work, but it should show some sign of life.

Try disconnecting all of the case wires from the motherboard. Short the two power switch pins with a paper clip. Double check in the manual that you are shorting the right pins.

Try taking the motherboard out of the case and put it on the box. Only connect what is absolutely necessary. Test it.

Let us know what happens when your try these things.

IAn
 
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aredflyingbird

aredflyingbird

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I stand corrected, that specific motherboard can support 32nm CPU's however, a 22nm CPU is needed in order to reach these RAM speeds. 1800*/2000*/2200*/2400*(OC,22nm CPU required) I misread OP, sorry.
 
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loosescrews

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That should not prevent the build from working. RAM has no problem with running at a slower speed.
 
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aredflyingbird

aredflyingbird

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I've never said it will prevent the build from working, I was just pointing my error out.
 
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DDM2592

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Sorry I never received notifications of the replies but while researching a problem for my father saw I had new replies to the thread.

I ended up asking in the MSi (Motherboard manufacturer) forum and an admin there suggested I remove my GPU and try powering it on which it did. I then thought "meh what could I lose putting the GPU back and powering on" which I did and it powered on. So my problem probably was that out of all the times I built and re-built the PC only that last time I seeded my GPU properly. I'm not sure if a GPU which is not properly seeded could cause nothing to happen but in any case I finally did everything right and all is well now.
 
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