Display problems, new build - help please!

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Joined
18 Jun 2009
Posts
66
Location
Scotland
Hello everyone.

I built this system earlier on today:

XFX ATI Radeon HD 4890 1GB GDDR5 PCI-Express Graphics Card

Gigabyte GA-MA790XT-UD4P (Socket AM3) PCI-Express DDR3 Motherboard

PC Power & Cooling Silencer 750 Quad-Crossfire PCI-E 750W Power Supply

AMD Phenom II X2 Dual Core 550 3.10GHz Black Edition (Socket AM3) - Retail

Western Digital Caviar Black 640GB SATA-II 32MB Cache - OEM
(WD6401AALS)

OCZ Platinum 4GB (2x2GB) DDR3 PC3-10666C7 1333MHz Dual Channel (OCZ3P13334GK)

Antec 300 Three Hundred Ultimate Gaming Case - Black (No PSU)

Sony Optiarc AD-7201S 20x DVD±RW SATA Dual Layer Lightscribe ReWriter
(Black) - OEM

Arctic Cooling Freezer 64 Pro PWM CPU Cooler (Socket 754/939/940/AM2)

It all appears to be working fine, powers up, LEDs are on etc etc, however i am having problems with my monitor. My monitor is an 20" LG (not sure of the exact model, think it's a monitor/TV, might be able to find out), and it keeps going straight to standby mode when the computer is powered up.

The cable i had been using with my old computer didn't fit the ports on my new graphics card, so i managed to find one which did fit which came with my monitor when i bought it a couple of years ago. The lead fits into the DVI port on the back of my monitor and i had to switch to DVI input to get any signal at all (just goes straight to standby mode).

Could this just be that i need a new cable, or a cable adaptor, or is it something more serious like a graphics card problem?

All replies are greatly appreciated.
Thanks,
-Doug. :)

P.S. Sorry for the vague and kinda jumbled post, very tired :(
 
Thanks for the replies everyone!

It turns out i hadn't plugged in the extra 8 pin power connector into the motherboard which skippy2421 pointed out and everything seems to be working fine now :)

I had no idea about any other connection other than the 2 x 6 pin power connectors on the graphics card, read right through the graphics card manual too and there was no mention of it! :p

Thanks for the support guys, learnt so much from building this rig, and from all you guys :)

Just the OS and drivers etc to go now! :D
Thanks,
-Doug.
 
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