I just built my first budget gaming pc this weekend, you can see my parts below. I am having issues with my monitor though. If I use HDMI, it will turn black every so often for about 2 seconds then come back on. On DVI it is fine. However, in the last two days while using DVI, my screen has shown a few lines then turns completely white, and the only way to fix it is to reboot the computer. This has happened three times, all while using Firefox (twice while on Facebook and once on YouTube). I have had the thing turned on for a few hours at a time idle and playing FarCry 3 with no issues. The DVI cable is the one that came with the monitor, the HDMI cable is one of my own. Any ideas on either issue?
ASRock Z77 Extreme4 LGA 1155 Intel Z77
Intel Core i5-3570K 3.4GHz Quad-Core
SAMSUNG Spinpoint F3 ST1000DM005/HD103SJ 1TB 7200 RPM SATA 3.0Gb/s 3.5" Internal Hard Drive
ASUS VH236H Black 23" Full HD Widescreen LCD Monitor w/ Speakers
G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM
ASUS DRW-24B1ST/BLK/B/AS Black SATA 24X DVD Burner
Microsoft Windows 7 Home Premium SP1 64-bit - OEM
ZALMAN CNPS9500 AT 2 Ball CPU Cooling Fan/Heatsink
XFX Double D FX-795A-TDFC Radeon HD 7950 3GB
COOLMAX NW-650B 650W ATX12V
How long have you had this monitor ? If it's new like the rest of your build then send it back , you have 30 days , and get another. It's a lot easier to return an item in the first 30 days then to go through the warranty later on.