Newly built computer turns on all fans run

November 12, 2011 at 18:48:05
Specs: Windows XP, AMD FX 8120/ 8 gigs
Computer turns on but im not getting any video to the monitor

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November 12, 2011 at 19:59:41
Did you reset BIOS to defaults? Can you even get BIOS set up to show on monitor?
Start with the basics. Remove all components except what is absolutely needed, in fact, if the MB has built in video, use that for initial set up (remove video card). If that does not work, remove even the hard drive and all but one stick of RAM and see if you can post and access BIOS set up.

Post back results and detailed specs.

You have to be a little bit crazy to keep you from going insane.

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November 13, 2011 at 08:58:58
I have a Gigabyte Ga-990xa-UD3
2 sticks of corsair vengeance 4 gig for total of 8 gigs
HIS Radeon HD 6770 IceQX video card
AMD FX 8120 cpu
Corsair GS800

I can get anything on the monitor im going to get a speaker to check the bios beeps, the mobo doesnt have built in video and I've tried with only one stick of ram cpu and video card and still nothing. Whats weird also is the mouse i plugged in would get power then lose it, the light on the bottom would flicker then turn off so i tried a different one that that one seem to be working other than i cant see it on the monitor working. Same with keyboard no lights or anything but i dont have another one laying around. I even tried bread boarding it as recommended by the toms hardware trouble shooting to check if the MB was shorting on the case but still nothing

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November 13, 2011 at 20:53:13
Look at:
and click in Memory Support List and make sure your memory is listed.
Look at:
to make sure your thermal compound was applied correctly (unless preapplied to heat sink).

Your video card:
HD 6770 System Requirement:

PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended (600 Watt and two 6-pin connectors for AMD CrossFireX™ technology in dual mode).
Certified power supplies are recommended. Refer to for a list of Certified products
Minimum 1GB of system memory
Installation software requires CD-ROM drive or DVD-ROM drive, a keyboard, a mouse, and a display
DVD playback requires DVD drive and a DVD
Blu-ray™ playback requires Blu-ray drive
For an AMD CrossFireX™ system, a second AMD Radeon™ HD 6770 Graphics card, an AMD CrossFireX™ Ready motherboard and one AMD CrossFireX™ Bridge Interconnect cable is required
Use of 3 or more displays with AMD Eyefinity technology requires a DisplayPort-capable panel or an AMD Eyefinity validated dongle. See for a list of validated DisplayPort dongles.
Note:"450 Watt or greater power supply with one 75W 6-pin PCI Express® power connectors recommended"
Your power supply:
Corsair CMPSU-800G Gaming Series GS800 800W Power
Form Factor: ATX

Wattage: 800W

SLI/Crossfire: SLI Ready

Energy Efficiency: 80 PLUS

Fan: 140 mm

Input Voltage: 90V ~ 264V

+3.3V: 25 A

+5V: 25 A

+12V 1: 65 A

-12V: 0.8 A

+5VSB: 3 A

MTBF: 100,000 Hours

20+4-Pin Connector: 1

Motherboard Connector: 24-Pin

4-Pin/8-Pin EPS Connector: 1

Motherboard Power Connector: 4/8-Pin EPS x1

8-Pin PCI-Express Connector: 4

4-Pin Floppy Connector: 2

4-Pin Peripheral Connector: 8

SATA Power Connector: 8
Note: " +12V 1: 65 A" and " 8-Pin PCI-Express Connector: "
According to the specs, your wattage should be enough, but your 12 volt amperage may not be enough (65Watts instead of 75Watts) PLUS you need a 6pin PCIe connector and you have an 8 pin PCIe connector that does not appear to be convertible to 6pin as far as I can tell. Do you have a 6pin plug connected to your video card?

Are you able to test the power supply on another working computer?

You have to be a little bit crazy to keep you from going insane.

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November 14, 2011 at 08:55:33
Yes there is a 6 pin PCIe connected to the video card, and i noticed the 75 amp for the video card and was wondering if i had enough. and no i dont have another computer to test it on.

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