Hey guys my first time building a PC and i think I might have fried my Motherboard
Every time i try to turn it on the CPU fan and videocard fan turn on and off and on and off repeatedly, I got a funny smell too when this occured. Ive tried it out of the case on a wooden surface and used the barebones, 1 slot of ram, removing battery. If my motherboard is fried will this fry all my other components too or does motherboard have a safety switch thing?
I sometimes notice a funny smell with new builds. Your board may not be toast yet, but if you go to the trouble of an rma to gigabyte, get some help when you receive the new motherboard. You may have connected something wrong off the power supply to the board. I've been building systems for about twenty years, but still haven't learned to post a link. Otherwise, I would find a video covering the basics of assemblying a new board. Others may post a link, so keep checking back. You can also damage the cpu and ram if the board or power supply starts smoking or sparks shoot out, so do some more research. You may have also simply not seated a connection all the way in to the board, including the ram. The only two power supply connections for a bare post are the 24 pin atx and 8 pin 12v lead off the ps. If you use the wrong 8 pin lead (video card lead instead of 12v), this could cause problems. But most likely the connector only fits one way. I haven't used a board yet with the newer 8 pin lead, so I'm not sure. Good luck.
Yeah I think ill send the motherboard back and get another, hopefully other components are alright but I will test them on another PC to see if they are still in working order.
Yes, the two connectors are keyed differently. They are not supposed to be interchangeable. In addition, they are wired differently. Interchanging either will result in shorting the 12 volts to ground. In that case, hopefully if the protection circuits work, the PSU will nondestructively shut itself down.
The breadboarding thread has a paragraph about how to build and test a PC in stages.
Breadboard with just motherboard, CPU & HSF, case speaker, and PSU. You do have a case speaker installed, right? If not, you really, really need one. If your case or motherboard didn't come with a system speaker, you can buy one here: http://www.cwc-group.com/casp.html
You can turn on the PC by momentarily shorting the two pins that the case power switch goes to.
You should hear a series of long, single beeps indicating memory problems.
Silence indicates a problem with (in most likely order) the PSU, motherboard, or CPU.
At this point, you can sort of check the PSU. Try to borrow a known good PSU. If you cannot do that, use a DMM to measure the voltages. Measure between the colored wires and either chassis ground or the black wires. Yellow wires should be 12 volts. Red wires: +5 volts, orange wires: +3.3 volts, blue wire : -12 volts, violet wire: 5 volts always on. Tolerances are +/- 5% except for the -12 volts which is +/- 10%.
The gray wire is really important. It should go from 0 to +5 volts when you turn the PSU on with the case switch. CPU needs this signal to boot.
This checks the PSU under no load conditions, so it is not completely reliable. But if
it can not pass this, it is dead. Then repeat the checks with the PSU plugged into the computer to put a load on the PSU.
If it looks like the PSU is good, install a memory stick. Boot. Beep pattern should change to one long and several short beeps indicating a missing graphics card. Silence or long single beeps indicate a problem with the memory.
Insert the video card and connect any necessary PCIe power connectors. Boot. At this point, the system should POST successfully (a single short beep). Notice that you do not need keyboard, mouse, monitor, or drives to successfully POST.
Now start connecting the rest of the devices starting with the monitor, then keyboard and mouse, then the rest of the devices, testing after each step.
Ok so ive done it out of the case and on a breadboard still getting a start stop, start stop , start stop. I was wondering if my motherboard is fried or shorts out will it short out my other components like CPU and Videocard? or is there safety mechanism thing?