PC not starting. power button turns on case fans and psu only.

[kairel]

Today I was in the middle of playing a game and my screen went black, sound cut out and my system stopped working. The case fans and power supply where still whirring. Even the power LED turned off and won't turn back on, yet the dvd drive still lit up and opened/closed. At first I tried changing display ports from my graphics card to my mobo and then i tried changing from my monitor to my tv.

I unplugged everything and held the power button (like every forum told me, i suppose to get rid of any electricity still in the system?). I cleaned out all dust inside the case, and also removed and switched around the memory sticks and that didn't appear to be the problem. I also removed the CMOS battery for about 20 minutes (another forum poster recommended this), and that didn't help either. I left it off for about 3 hours before trying to turn it back on. I haven't been able to listen for post beeps because there is no speaker plugged into my mobo, although it doesn't seem like my mobo is functioning at all.

this is a list of the PC's components:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4430 3.0GHz Quad-Core Processor ($179.99 @ Amazon)
Motherboard: MSI B85M-P33 Micro ATX LGA1150 Motherboard ($53.99 @ SuperBiiz)
Memory: A-Data XPG V1.0 8GB (2 x 4GB) DDR3-1600 Memory ($68.99 @ NCIX US)
Storage: Crucial M500 120GB 2.5" Solid State Drive ($71.99 @ B&H)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($49.88 @ OutletPC)
Video Card: EVGA GeForce GTX 760 2GB Video Card
Case: Cooler Master N200 MicroATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: EVGA 500W 80+ Bronze Certified ATX Power Supply ($32.98 @ NCIX US)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($15.88 @ OutletPC)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($88.98 @ OutletPC)
Other: TP-LINK TL-PA4010KIT High-speed AV 500Mbps Nano Powerline Adapter Starter Kit ($39.99)
Total: $642.66
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-18 19:02 EST-0500



I need help ASAP. I haven't had anyother major issues with this PC.

 

[h2tahoe]

You could try to externally flash the bios if your MOBO allows that

 

[kairel]

You could try to externally flash the bios if your MOBO allows that

can you provide a bit deeper of an explanation as to what you mean and how I would check that?

 

[h2tahoe]

Some Motherboards have a safeguard recovery feature if a bios corrupts then you can recover the bios even if the bios is corrupted how ever some higher end motherboards have it and some don't. a hint if there is a button on the back that looks like a circle with arrows download bios onto a USB and plug it into the port it hints at and hit the button

 

[Smudgy]

probably not but worth try check your 24 power pin make sure its seated into your board

 

[h2tahoe]

a power-supply not connected properly would deffintly cause a fatal start up error. keep in mind before a pc stars up it scans each component for proper working ability and could crash if one fails

could also be an aux 4 or 8 pin at the top

are the fans connected to the psu of the MOBO. if not connected to the mobo the MOBO could be fatally damaged

 

[Darkbreeze]

Try unplugging the power from the graphics card, removing the graphics card from the motherboard, connecting the motherboard graphics output to the monitor and attempt to start the system.

If that fails to help, we can move to the next step.