Do all front panel connections need to be plugged in for a computer to boot?

[ComputerWontBoot]

I really hope the answer is yes. I've been trying to get my God forsaken computer to turn on for days, but it just turns on for like half a second and turns off. I do get 1 short beep, but that's only like every 7 tries or so. The ONLY thing that might possibly be the problem is that one of the front panel cables is for a USB 3.0 port, but there's nowhere to plug it into my motherboard, so I bought this handy little USB 2.0 to 3.0 adapter on Amazon and I'm oh-so patiently waiting for it to ship. Do you think this is why it's not booting? If the answer is no, I'll give you some more details, but in the meantime...

Case: Corsair Carbide Spec 01
MB: MSI H81M-P33

Thank you.

 

[DonkeyOatie]

If you can turn it on by shorting the header pins, a system will boot without any front panel connections, so that's NOT the problem.

Are you sure everything is plugged into the right places, the correct way round, and fully and tightly inserted? When my students have this sort of problem, that is usually the solution. something needs to be plugged in better.

 

[CountMike]

I really hope the answer is yes. I've been trying to get my God forsaken computer to turn on for days, but it just turns on for like half a second and turns off. I do get 1 short beep, but that's only like every 7 tries or so. The ONLY thing that might possibly be the problem is that one of the front panel cables is for a USB 3.0 port, but there's nowhere to plug it into my motherboard, so I bought this handy little USB 2.0 to 3.0 adapter on Amazon and I'm oh-so patiently waiting for it to ship. Do you think this is why it's not booting? If the answer is no, I'll give you some more details, but in the meantime...

Case: Corsair Carbide Spec 01
MB: MSI H81M-P33

Thank you.

No, it has nothing to do with USB front panel.

 

[ComputerWontBoot]

If you can turn it on by shorting the header pins, a system will boot without any front panel connections, so that's NOT the problem.

Are you sure everything is plugged into the right places, the correct way round, and fully and tightly inserted? When my students have this sort of problem, that is usually the solution. something needs to be plugged in better.

Hello. Thank you for your help. I have unplugged and replugged every single connection multiple times, and they are all nice and tight. Do you think it is possible that my RAM is defective? The computer still doesn't boot and usually emits the same short beep whether the RAM is placed in the mobo or not, and I may have been carelessly handling it when I first got it. Yes, I have pushed in the RAM sticks into the mobo all the way, yes, I have tried switching them around, and yes, I am 99% sure they are compatible.

 

[DonkeyOatie]

It's possible. Got a friend you can swap RAM with? Have you tried booting using only one stick. A single 4GB stick is enough. (try each one separately)

 

[ComputerWontBoot]

It's possible. Got a friend you can swap RAM with? Have you tried booting using only one stick. A single 4GB stick is enough. (try each one separately)

Sorry it took me so long to respond, but I think I've found the problem.
This is the layout of my mobo http://reho.st/self/162522fb378d0c9f616333afb7a1dbfdf1d88bd7.png
I don't have "JPWR2" plugged in. I'm sure that needs to be plugged in, but my power supply (Corsair CX600M) doesn't come with any 4 pin ATX cable. I tried looking for a connector for it, but there's only one on Amazon and it won't fit any of the cables on my PS. I kind of regret cheaping out on the mobo. Any solutions? Or am I just being dumb and JPWR2 doesn't need to be plugged in if JPWR 1 is?

 

[DonkeyOatie]

You need both JPWR1, the big 20+4 connector on the edge of the motherboard and the JPWR 2 ,the four pin CPU power connector plugged in for the system to work properly.

The Corsair CX600M DOES have a modular EPS cable. It may have what looks like an eight pin connector 2 x 4 on one end, but it can be split into two four pin 2 xs 2 connectors.

 

[Rob PCC]

Good news! This is an easy fix. The JPWR2 is the power for the CPU, so all you need to do is use the 8 pin connector on your CX600M labeled "CPU" and plug 1/2 of it (4 pins - it looks weird, but it's fine) into power your CPU, and you should be good to go. That will take care of it.

 

[ComputerWontBoot]

You need both JPWR1, the big 20+4 connector on the edge of the motherboard and the JPWR 2 ,the four pin CPU power connector plugged in for the system to work properly.

The Corsair CX600M DOES have a modular EPS cable. It may have what looks like an eight pin connector 2 x 4 on one end, but it can be split into two four pin 2 xs 2 connectors.

Again, sorry it took me SOOOOOOOOOOOOOOO long to reply, it turned out that this was in fact the solution, but I had a bad motherboard so I had to wait a while to get a new one (It didn't turn on at first either, I forgot to plug in JPWR 2 again hehe). Then I had forgotten my password and was too lazy to look it up on my phone or change it, then about 3 minutes ago I realized that I had been trying to log into a completely different website.
TL;DR I'm lazy.

But if my motherboard hadn't been defective, then your solution would've worked, so thanks so much for your help!

 

[DonkeyOatie]

Good luck. Glad we could help.