• Custom PC won't boot up: Nothing on screen
    11 replies, posted
Okay, before I begin, I have to say that I don't know that much about hardware and whatnot, so please bear with me and try not to rage at how little I know. I'm still amazed that I actually got my PC to actually work with no problems. Until now, that is. It was working perfectly fine a three days ago. Here's the problem: It won't boot up. It turns on and everything, makes it's usual sounds, nothing different, only nothing shows on the screen. I checked the usual things that would make me feel stupid if it were the problem, such as seeing if the wires are attached correctly, etc. but nothing worked. So I opened that mother up. I'm using an EVGA nForce 780i SLI motherboard. It gives me POST code 25, which according to the User manual, is "Shadow VBIOS, Shadow system/video BIOS". I have searched around and googled this problem, and here are some of the solutions I've tried to do so far: I've tried removing my RAM sticks (four 2GB Corsair Dominators) and turning the PC on with each one inside alone. I've tried putting my graphics card (GeForce GTX 280) into different PCIe x16 slots. I've tried resetting CMOS. And yet, nothing works. Nothing on the screen, still gives me the POST code 25. Some people say it could be a problem with PS/2 slots, but my keyboard and mouse are both connected with USB. I HAVE used a PS/2 keyboard once, but that was a few months ago, butt hat has nothing to do with it obviously. Again, I don't know much about computers, so please bear with me if I mistook some terms or if this is a just simple problem.
You 100% sure that all the cables from the PSU are in the right place? I had the same problem because I forgot the 12V cable to the motherboard.
[QUOTE=Swebonny;20922990]You 100% sure that all the cables from the PSU are in the right place? I had the same problem because I forgot the 12V cable to the motherboard.[/QUOTE] I'm pretty sure, yeah. It was working perfectly, and I didn't mess with anything inside. It just decided one day to not give me anything on the screen. :geno:
Ah damn sorry, I thought you just assembled the computer. No screen usually means that there is a problem with the GPU. Have you tried it in another PC? Tested another screen?
Plug the screen in the other plug.
[QUOTE=Swebonny;20923120]Ah damn sorry, I thought you just assembled the computer. No screen usually means that there is a problem with the GPU. Have you tried it in another PC? Tested another screen?[/QUOTE] I tried it on another monitor, and it didn't work. I just tried my other GTX 280, and I'm still getting nothing. [editline]10:45PM[/editline] [QUOTE=ShitBalls;20923211]Plug the screen in the other plug.[/QUOTE] Nothing.
Have you tested to run the PC using the integrated motherboard graphics? Do you see the screen then?
1) Check for BIOS updates. 2) Disable PS/2 devices in the BIOS.
Sounds like you plugged in a cable from the PSU to the motherboard in the wrong place.. if you haven't messed with any of the cables, maybe one of them went faulty? Maybe you could replace your PSU...
[QUOTE=Swebonny;20923482]Have you tested to run the PC using the integrated motherboard graphics? Do you see the screen then?[/QUOTE] I would've, but it doesn't have one. [QUOTE=Mister TBD;20923502]1) Check for BIOS updates. 2) Disable PS/2 devices in the BIOS.[/QUOTE] 1) How does one check for BIOS updates if one's computer doesn't even boot up? There's nothing on the screen. 2) Same problem. [QUOTE=kEat0n;20923589]Sounds like you plugged in a cable from the PSU to the motherboard in the wrong place.. if you haven't messed with any of the cables, maybe one of them went faulty? Maybe you could replace your PSU...[/QUOTE] Yeah, I haven't messed with them at all. They've been in the same places since the day I built it. I really hope I don't have to replace my PSU, but I guess it looks like I have to.
[QUOTE=Zeldy;20923683] 1) How does one check for BIOS updates if one's computer doesn't even boot up? There's nothing on the screen. 2) Same problem. [/QUOTE] I was not thinking. :downs:
I guess I'll try getting a new PSU. If that doesn't work... Well then sucks to be me I guess. :v: Thanks for the help, guys. Rated everyone heart.
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