Computer randomly goes to sleep


Aug 26, 2011
Hey everyone,

I just started experiencing a problem when I starting using a new monitor I purchased.

While I am using the computer (Surfing the internet, typing, gaming) The computer will go to sleep and sometimes will say something to the effect of "no DVI signal." Upon wiggling the mouse, the computer wakes up but this can happen 4-5 times in a 60 second period which can be very annoying.

I thought it was the monitor so I requested a replacement, but that is doing the same thing. I tried my old monitor, same thing. I even reinstalled windows and a day or so later, same thing.

I've also done more obvious things, like shutting off all the sleep/display power down options (set them to never).

Also, I've had this computer for a few months now and this problem just started happening

Anyone experiencing this or know how I can fix this?

My specs are as follows:

-Windows 7 64 bit
-ASUS VE247H Black 23.6" Full HD HDMI LED BackLight LCD Monitor (I don't think this is the problem)
-AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz Socket AM3 125W Six-Core Desktop Processor
-G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1333 (PC3 10666) Desktop Memory
-SAPPHIRE 100311SR Radeon HD 6970 2GB 256-bit GDDR5 PCI Express 2.1 x16 HDCP Ready CrossFireX Support Video Card with Eyefinity
-Western Digital 1 TB Caviar Blue SATA 7200 RPM 32 MB Cache Bulk/OEM Desktop Hard Drive
-ASUS M4A87TD EVO - AM3 - AMD 870 - DDR3 - USB3.0 SATA 6 Gb/s - ATX Motherboard
-CORSAIR CMPSU-750TX 750W ATX12V v2.2 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC