Earlier this year I built my first PC. Everything went fine, but it kept getting BSODs. I ran memtest, found the RAM to be faulty, and replaced it, but kept getting BSODs despite memtest clearing the new RAM. I checked the system files and found them to be corrupted, so started repairing them, but got another BSOD in the process, after which I got a random error upon trying to start up(I apologize but I cannot recall the specific error), after which it would almost always not even load the BIOS - occasionally it will load the opening BIOS screen but nothing more.
I figured it was a motherboard issue, as the case still started up and all the fans ran but nothing loaded, so I sent in an RMA on it. After a long process of babysitting MSI I got it back today, but after installing it is the exact same results.
If you need anymore info I will provide as possible, I am at a complete loss as to what the issue could be.
Update the bios if you can. And remove all of the ram sticks except for one, ive had memtest86 clear ram for me multiple times then i find out one of the sticks was faulty.
(not saying its the case for everyone but helps to check)
PSUs can fail in many ways, and the presence of power does not mean the power is correct to power a system. Just to be clear.
Rapid degradation ending with no post, with initial BSODs... I'm guessing CPU. The only way to test would be with a known good one. If not, it's the MB.
Agreed, a PC speaker would be a great help, and may pinpoint the issue.
How have you tested the power supply? If you have an old desktop computer, try getting it to power that up, and checking voltages to ensure they are near spec, would absolve the PSU of being completely faulty. I assume you tried booting on intel graphics, with no luck. If you haven't, you should.
Also agree with the CPU/Mobo. Try unplugging all unnecessary hardware (hdds, dvd drives, video card) until things start working properly.
Is there anything during the build that didn't go well, such as trouble inserting the cpu or flexing the mobo trying to insert ram? (Simply to help narrow possibilities)
I took out one stick of RAM and it wouldn't boot - the PSU fan spun but nothing else did. So I replaced the one remaining with the one taken out, and now it posts, but doesn't properly load windows. It posts a black screen with b4 on the bottom right, then after a couple minutes just a flashing cursor in the top left. If I let it go long enough it gets to the "loading windows" screen, but nothing happens there.
When you sent off the MB for RMA did you get a new one back, or the same board?
It really seems like we haven't made any progress here. The beep codes do help to rule out the PSU, but this could be the MB or the CPU. Remember, the CPU controls the memory and a faulty controller could result in damaged RAM.
On the other hand, the MB has to supply correct voltage to both of those items and has to tell the CPU how to control the DRAM correctly....
So here is what I would do at this point, if I were working on this myself.
1. Replace the CPU with a known good one. If you need to buy one then get something cheap that can go into a later build for someone else. If this seemed to resolve the boot issues, then
2. Make sure you have consistent stable POSTs by removing the HDD and just rebooting. Maybe boot into a Linux CD once also. Then
3. Run memtest from a CD or flash drive overnight, then if stable
4. Update the BIOS to the newest version, being careful to do it right.
You have to start replacing parts to discover what is bad, and these days it's very hard to tell between the MB and CPU without just swapping them out. Be sure to closely inspect the CPU socket for bent pints though.