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New built computer not working, monitor gets no signal.

Last response: in Motherboards
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May 26, 2013 5:47:28 AM

So I'm new to building computers, and I think I built one successfully, but when I plug in DVI and boot it up my screen gets no signal, so it switches from analog to digital continuously and goes on sleep mode. I have my motherboard powered by plugging in the 24pin power connector, and the 4 pin p3. My sata hdds are powered but my graphics card isn't (It didn't have a pci-e power plug slot).
But all the fans spin, I get no CMOS beeps and the computer looks like it works.

My specs are:
Graphics Card : AMD Radeon 6450
MotherBoard: MSI 790GX-G65
RAM : 8GB patriot DDR3
CPU: AMD Phenom 2
PSU : Stealth X Stream 2 Power Supply with OCZ tech.

I made sure the motherboard and the other parts aren't discharged.
a c 93 V Motherboard
a b C Monitor
May 26, 2013 5:54:12 AM

1) reset your bios (CLRCMOS)
2) try the onboard video, pull the gpu out, and see if you get picture
3) try a different psu
4) pull the whole thing appart and make sure there is nothing behind your mb grounding it out. then reseat the cpu, cpu cooler, and ram, then put motherboard back in and try again

let us know how it works.
May 26, 2013 6:20:51 AM

I've pressed the CLRCMOS button then tried, and got the same results.
I tried the Onboard DVI after unplugging GPU, no signal still.
I will try another PSU, but I've asked lots of experienced PC builders and asked the store if this psu work with this motherboard and they all told me it will work.
My Case is the Ghost case so it has the bumps the act as the standoffs, and I also have on standoff in the middle. I also checked if there is any wires under the motherboard and Checked if the CPU is set correctly and also checked if the CPU cooler is installed correctly.
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a c 93 V Motherboard
a b C Monitor
May 26, 2013 6:29:02 AM
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junewi123 said:
I've pressed the CLRCMOS button then tried, and got the same results.
I tried the Onboard DVI after unplugging GPU, no signal still.
I will try another PSU, but I've asked lots of experienced PC builders and asked the store if this psu work with this motherboard and they all told me it will work.
My Case is the Ghost case so it has the bumps the act as the standoffs, and I also have on standoff in the middle. I also checked if there is any wires under the motherboard and Checked if the CPU is set correctly and also checked if the CPU cooler is installed correctly.


1) try the psu... we need to make sure the psu isn't broke.
2) pull out all the ram, then try 1 stick in each slot. repeate with the next stick of ram, till you've tried all the ram/slots

at this point i'd bring the MB and the CPU back to where you got it and return it as broken
May 26, 2013 6:49:09 AM

ingtar33 said:
junewi123 said:
I've pressed the CLRCMOS button then tried, and got the same results.
I tried the Onboard DVI after unplugging GPU, no signal still.
I will try another PSU, but I've asked lots of experienced PC builders and asked the store if this psu work with this motherboard and they all told me it will work.
My Case is the Ghost case so it has the bumps the act as the standoffs, and I also have on standoff in the middle. I also checked if there is any wires under the motherboard and Checked if the CPU is set correctly and also checked if the CPU cooler is installed correctly.


1) try the psu... we need to make sure the psu isn't broke.
2) pull out all the ram, then try 1 stick in each slot. repeate with the next stick of ram, till you've tried all the ram/slots

at this point i'd bring the MB and the CPU back to where you got it and return it as broken


Well I'm sure the PSU works because I've tested it with the cathode lights, and I tried the RAM individual as well..... If it is broken that not a good sign.. :'( 
Thank you so much for your response, I appreciate it.
a c 103 V Motherboard
May 26, 2013 12:01:51 PM

Looking at your board, there looks like a 4-pin power connecter too. Have you plugged that one in as well?

Edit:
My bad. I just re-read the thread and realized that you do have all the MB power connecters plugged in.
June 1, 2013 2:43:03 PM

So, Thank you everyone for your answers, but I went to NCIX and asked for a new power supply because my PSU was very bad and cheap, so I got a Corsair CX430 430W PSU for 45 bucks, since my GPU barely takes energy and it doesn't have a pci-e power plug, And it works perfectly!
a c 93 V Motherboard
a b C Monitor
June 1, 2013 2:51:11 PM

junewi123 said:
So, Thank you everyone for your answers, but I went to NCIX and asked for a new power supply because my PSU was very bad and cheap, so I got a Corsair CX430 430W PSU for 45 bucks, since my GPU barely takes energy and it doesn't have a pci-e power plug, And it works perfectly!


gratz!
!