Help - PC Won't boot cant diagnose

ReedME11

Distinguished
Oct 13, 2011
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18,510
Hi Guys,

I have been building computers for years and due to my old i7 930 dying on me the other day I have had to replace my computer. So I pulled out the old X58 board and my old RAM/GTX260 and left my Antec 850W PSU/ SSD 120gb hdd and 1tb WD drive in, I proceeded to install my new ASUS P8Z68-V along with a brand new i7 2600k and 2 x 8GB Patriot Viper Xtreme DDR3 2000 mhz RAM and my 2 new GTX 460 cards in an SLi configuration, plugging in everything as required, once done I plugged it all in and went to boot, the pc appears to post because it runs and there are no beeps. However nothing displays on the screen (I've tried 4 different monitors) so I took the gfx cards out and plugged my cable into the motherboards DVI port to no avail, I have also tried VGA and HDMI just to test those once again no vision. The only thing I noticed was a RED LED which said under it "Boot_Device_LED" was lit whilst it was running?

Anyone got any ideas?