Sabertooth Z77 Red Cpu LED Tags: Asus Sabertooth LED Monitor Motherboards Last response: February 7, 2013 12:10 PM in Motherboards Share GECKOBROWN February 4, 2013 7:39:43 PM Hey guys, just wondering if anyone could possibly help me. Earlier today i went to power on my pc which consists of: Sabertooth z77 mainboard i5 3570k ivybridge Corsair vengence 8gb (2x4gb) h100 cooler + stock fans sapphire 7870 and a single SSD ... everything was going fine, playing guild wars for about 2 hours, then suddenly it powered off like it was restarting after a update. but now it wont boot and the cpu led is constantly lit. any ideas where i should start troubleshooting, i know my way around a pc but ive never really troubleshooted something like this any help would be greatly appreciated More about : sabertooth z77 red cpu led alexoiu a c 146 Ĉ ASUS a c 537 V Motherboard February 4, 2013 8:30:48 PM Hi, The first thing to suspect is the power supply. I guess that the CPU fan isn't spinning when starting the board? GECKOBROWN February 4, 2013 10:42:17 PM the fans coming off the h100 pump are the only fans that power on. the rear fan and the two.smaller board fans dont. whats the best way to go about testing the psu? everything else seems to power on. Related resources Sabertooth z77 cpu led red - Forum Sabertooth Z77 Red L.E.Ds - Forum CPU LED on Sabertooth Z77 - Forum Sabertooth Z77 and i7 3770K - CPU Error LED - Forum SABERTOOTH Z77 Problem - Forum Can't find your answer ? Ask ! Get the answer alexoiu a c 146 Ĉ ASUS a c 537 V Motherboard February 5, 2013 3:51:50 AM Try this: http://www.youtube.com/watch?v=5FWXgQSokF4 Attach a fan to a molex also. But, if the fans do spin, the test is not reliable, as the PSU might fail under load. GECKOBROWN February 5, 2013 2:57:10 PM the fans that are connected to the molex work, but the fans conneced directly.to the board dont on start up. im gonna try a new psu as i think im due one, only.artmi didnt buy new when i built it last april. gonna see how it goes. fingers crossed GECKOBROWN February 7, 2013 12:10:09 PM yup was the psu, came today took and hour to install and change stuff around but everythings fine and dandy. cheers for the help GECKOBROWN February 7, 2013 12:10:14 PM yup was the psu, came today took and hour to install and change stuff around but everythings fine and dandy. cheers for the help Can't find your answer ? Ask ! Publish Related resources : ForumAsus Sabertooth Z77 ram issues Help (noob) ForumAsus Z77 Sabertooth VGA Error - Won't Boot ForumSabertooth Z77 + G.Skill Ares 1600 = Headache ForumPlease Help sabertooth z77 issue ForumPlease Help sabertooth z77 issue ForumAsus Z77 Sabertooth & Kingston Hyperx Red Compatibility... ForumSabertooth Z77 - Screeching/white screen. UPDATE: 460 works, 570 don't ForumHelp with sabertooth z77 ForumNew bulid ASUS Sabertooth Z77 with i7 Processor ForumSabertooth z77 won't boot ForumZ77 Sabertooth and Ram Issue ForumSabertooth 990fx & i get a solid red CPU LED ForumSabertooth 990fx support for solid red CPU led dont kno wwhat to try next ForumHelp updating BIOS ForumCPU fan error More resources Read discussions in other Motherboards categories BIOS Boot Chipsets ASRock Asus Chaintech DFI Elitegroup FIC Foxconn Gigabyte Intel MSI-Microstar !