Pc Build: Power Supply and Booting Problems

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Ekliberty

Honorable
Oct 24, 2013
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10,510
Hi sorry if this is in the wrong category.
I'm new to building computers and I am currently building one and have installed all of the parts but when I try to boot it up for the first time the Power supply fan turns for about 4 seconds and thats it. No Power button LED turns on nothing. Just the Power supply fan turns on for 4 seconds. I'm pretty sure i have installed all of the parts correctly but maybe not.
What am i doing wrong? What can I do to fix this?
Please answer as soon as possible,
 
Solution
nostall
SR71 has pointed you in the right direction.
Your PSU is right on the minimum requirement for a system with that video card.
Check the power supply with a muti-meter (volt meter), but when I have done that the tester almost always tells me there is sufficient voltage; probably because there is not load on the PSU.
Make sure all the power connectors to the motherboard are securely attached, it's easy to not push them in all the way and it is possible to forget the auxillary power connection by the CPU (8-pin EATX 12V).
Best way to check the power supply is to try another KNOWN good PSU and see if the system boots; that would also check the mobo.
Jump back in here SR!!
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Ekliberty

Honorable
Oct 24, 2013
16
0
10,510


Processor: Intel Core i5-3470 Processor
Motherboard: MSI B75MA-P45 Motherboard
Graphics Card: XFX Radeon HD 7870 Graphics Card
Ram: 8GB Corsair Vengeance DDR3 RAM
Hard Drive: 1TB Western Digital Caviar Black Hard Drive
Case: NZXT Source 220 Case
Power Supply: 500W Corsair CX500 Power Supply
Optical Drive: Optical Drive - Lite-On DVD Burner
 
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Ekliberty

Honorable
Oct 24, 2013
16
0
10,510

Ohhh ok so would i need to get a new motherboard and power supply??If so I do not know which ones i should get and what is compatible with all of my specs
I'll be getting a power supply tester to see if it is dead or not.. is there anyway i can test the motherboard???
 
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nostall

nostall

Splendid
Nov 28, 2012
3,244
12
23,865
SR71 has pointed you in the right direction.
Your PSU is right on the minimum requirement for a system with that video card.
Check the power supply with a muti-meter (volt meter), but when I have done that the tester almost always tells me there is sufficient voltage; probably because there is not load on the PSU.
Make sure all the power connectors to the motherboard are securely attached, it's easy to not push them in all the way and it is possible to forget the auxillary power connection by the CPU (8-pin EATX 12V).
Best way to check the power supply is to try another KNOWN good PSU and see if the system boots; that would also check the mobo.
Jump back in here SR!!
 
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Solution
nostall

nostall

Splendid
Nov 28, 2012
3,244
12
23,865


Connect one of your case fans to the appropriate power lead (4 pin molex connector) from your PSU; this is to place an electrical load on the PSU.
Then try the paperclip test.
ATTACH EVERYTHING, INCLUDING THE PAPERCLIP, WITH THE PSU UNPLUGGED/OFF!!!
 
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Ekliberty

Honorable
Oct 24, 2013
16
0
10,510
Im sorry but i dont know know what this cable it like on my power supply and idk how to connect with none of them have prongs to connect to each other... Prongs to holes
 
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Ekliberty

Honorable
Oct 24, 2013
16
0
10,510
they used to be plugged in the motherboard but i unplugged everything now to try find out the problem and I think i plugged a few things into the wrong places.... because my fans work now and my processor fan works now... interesting....
 
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Ekliberty

Honorable
Oct 24, 2013
16
0
10,510
I got the hard drive on (I think) I got all fans and power supply on Graphics card is on but the other im not sure if it works also dont know if i connected my moniter right also i did not hear a beep.. i think i was suppossed to


 
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nostall

nostall

Splendid
Nov 28, 2012
3,244
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23,865
When you turn on the computer, does it show a boot or BIOS screen?
Does it ask if you want to "Boot from CD "or other media?
If it does show this message, did you have the disc in the drive so you could install the operating system?
Please read the below Tom's link and go through ALL the steps: Then repost here on this thread and we can try to help troubleshoot. Otherwise this will take forever - going back-and-forth.
http://www.tomshardware.com/forum/261145-31-perform-steps-posting-post-boot-video-problems
Hang in there, you will get it running.
 
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