are these the signs of a short in a mobo?

[sleazyhunterx]

well my mobo no longer turns on

I checked all connections, re-connected all cables...still nothing

Thought maybe it was my PSU, well both my old and new one power up when doing the paperclip test...so it is not that

Thought it was my case, maybe I damaged a front panel cable, still nothing...decided to connect the paperclip while all components were connected...everything powered on, except my cpu cooler fan and anything else connected to the motherboard...therefore I can conclude my mobo is the problem

so what kind of damage is this? short circuit? will my RAM and CPU still work on a new board when I replace it?

[Bad 💀 Motha]

Best bet is remove the Motherboard and test it out that way in a safe way/safe environment.
With just the very basics needed to get a picture up on the screen, then go from there to narrow down any problems. Done safely with pre-cautions taken, you can use the motherboard box as a test-bed for troubleshooting the system outside of a chassis/case.

If tutorial is needed, please review this:
https://www.youtube.com/watch?v=d_56kyib-Ls
*Skip to approx 10:40 and watch from there.

Upon either Motherboard removal or re-install, ensure the I/O Bracket on the Chassis' Rear does not conflict with Motherboard connections (such as metal tab bent down and touch the LAN or USB pin connections instead those ports) as well as perhaps any extra, un-wanted Motherboard Stand-Off Posts. If outside the case the motherboard fails to post, refer to manual and reset the CMOS, as that could help. If your Motherboard has a "MemOK" button on it, try that to see if it helps with starting up properly.

If the CPU fan does fail to start or work off the "CPU_1" header, that can be a major reason why the Board doesn't stay on. As motherboards rely on that header working to ensure it's getting feedback from the CPU Fan RPM Sensor, to ensure it works and stays running. If that Fan RPMs should dip too low, or be non-functional, most Motherboards will auto-shutoff to help avoid CPU damages.

[MaddDoktor [Linux]]

If there was a short circuit, power supplies have a safety feature that would immediately electronically shut them off if there is excessive power draw.

There was a time when some motherboards had bad capacitors that could leak and/or pop. So if it has been working fine for quite some time and suddenly stopped working, that is a possibility.

[_I_]

what board is it?

if it will not post/boot and the psu immediately turns off
try this

unplug the 4/8 pin cpu power connector (keep everything else plugged in)

press the power button
it will not post/boot, but if the power supply stays on its a fried vrm/mosfet on the board


if its a new build
pull the board, and make sure your using only the mobo standoff locations that line up with the mobo

[sleazyhunterx]

Originally posted by _I_:

what board is it?

if it will not post/boot and the psu immediately turns off
try this

unplug the 4/8 pin cpu power connector (keep everything else plugged in)

press the power button
it will not post/boot, but if the power supply stays on its a fried vrm/mosfet on the board


if its a new build
pull the board, and make sure your using only the mobo standoff locations that line up with the mobo

it is a MSI Z97M-G43
it worked fine since September, like 2 weeks ago I tried to transfer it from an old case to a new case, some things did not fit, so I switched back, I did not power up anything while in the new one so I do not know if damage took place there, but once I went back to my old case and built everything again, it would not power on at all, no sign of life on the mobo(I can't even diagnose with POST or mobo speaker because it won't receive power)

I tested the PSU seperately and both my old known working one and a new one power on with the paper clip test, then with led fans and everything connected to the mobo except the 24 pin(as I used the paperclip)...everything powered up except the cpu cooler fan, which had the 4 pin connector in the slot and it did not power and this is on the mobo, so this does not look good for it

[_I_]

if the board is under a year, contact msi for warranty, and send it in for rma

http://service.msicomputer.com/msi_user/support/rma_form.aspx

[theotherdan]

Crap, that is was TL:DR...Your statement is too ambiguous. If you rig won't turn on, use a new power outlet and power cord. If still no good and won't turn on, flip the switch on the PSU if it has one. Flip it a few times. If still no good, disconnect power from the outlet. Reseat the main power connector on the board along with the 4 or 6 pin aux adapter. Try again and observer the board and PSU. See if LED's light up on the board and if anything happens with the PSU.

[sleazyhunterx]

Originally posted by theotherdan:

Crap, that is was TL:DR...Your statement is too ambiguous. If you rig won't turn on, use a new power outlet and power cord. If still no good and won't turn on, flip the switch on the PSU if it has one. Flip it a few times. If still no good, disconnect power from the outlet. Reseat the main power connector on the board along with the 4 or 6 pin aux adapter. Try again and observer the board and PSU. See if LED's light up on the board and if anything happens with the PSU.

tried all that, nothing...my board has no LED
like I said PSU powers up fine, but the board gets no power at all

[FraggenSniper]

Your best bet is to pull the board back out of the case. Wipe the whole board front and back with a soft bristle brush to make sure there are no tin whiskers on any of the solder contacts. Examine all of the Caps to make sure they are not protruding on the top or sides. Install just the Ram, MB, and Processor using the onboard video and see if it will post. I have run across a few boards that have solder points to close together and develope tin whisker shorts. While the board is out is the only time you will have the chance at directly looking at the caps from all angles. It is common for caps to bust and cause the problems you are having, creates a short. That board looks like it came with a 3 year warrenty so doing the diagnosis now will let you get it replaced by MSI. Also alwasy double check your cpu cooler for consistent tention and fit when moving the motherboard between cases.

[FraggenSniper]

Soft bristle means nylon or horse hair not metal.

[theotherdan]

RMA the board