Sabertooth 990fx, AMDFX4100 CPU LED flash once no boot. Tags: CPUs Motherboards LED Monitor Last response: May 30, 2012 7:04 AM in CPUs Share seiryustudio May 30, 2012 6:55:25 AM Hello, got a little problem after buying the parts for my computer, I'm guessing it's the motherboard. But the symptom is that the CPU LED when I pressed the power button only flashed once and never again even after I press the power button a few times. This is what I got so hopefully it will help out. Sabertooth 990fx mobo AMD FX 4100 Asus GTX550TI Corsair vengeance ram 8gb Antec 650w power supply 80 plus bronze I did the one ram installed method. I checked the CPU allignment and it's properly alligned no pins are bent and it's in perfect condition. During installation motherboard is grounded while it's inside the case along with myself since I'm constantly touching the case while I was installing the CPU. Everything is plugged in all the fans/videocard/HD/DVD drive. So I'm lost at what went wrong. I'm still guessing is the motherboard DOA. More about : sabertooth 990fx amdfx4100 cpu led flash boot amuffin a c 186 à CPUs a b V Motherboard May 30, 2012 6:58:51 AM 8 Pin PSU CPU Connector plugged in fully? m 0 l seiryustudio May 30, 2012 7:04:37 AM yes fully plugged in. m 0 l Can't find your answer ? Ask ! Publish Related resources New Build Asus Z87 sabertooth not booting, cpu, ram, gpu led lights continuous flash Forum SolvedSabertooth 990fx CPU led red Forum SolvedCPU Led on Asus Sabertooth 990FX R2.0 Forum Solvedred cpu led, all fans on, all drives on, no post sabertooth 990fx rev 2.0 fx 8320 Forum SolvedRed CPU LED (Sabertooth 990FX mobo) Forum SolvedASUS Sabertooth 990fx R2.0 no POST CPU LED red Forum Sabertooth 990fx boot led lit with no post. Forum Sabertooth 990fx R2.0 BOOT_DEVICE_LED Freeze Forum SolvedUsing Asus sabertooth 990fx R2.0 and my CPU LED blinks twice then shuts off on power up. Forum ASUS Sabertooth 990fx R2.0 - CPU Red LED (from improper shut down) Forum ASUS Sabertooth 990FX R2.0 ATX AM3 Boot Device LED and other issues Forum sabertooth 990fx 2.0 CPU red LED & red DRAM LED Forum sabertooth 990fx motherboard cpu led error, all fans are spinning Forum asus sabertooth 990fx motherboard cpu led error Forum SolvedBIOS Flash without CPU on ASUS SABERTOOTH 990FX R2.0 Forum 990FX Sabertooth R2.0 CPU LED On After Power On Forum Sabertooth 990fx CPU LED Forum Sabertooth 990fx Boot service led Forum SolvedNeed help once again, Gigabyte GTX 770 4g throwing CPU_LED on boot! Forum SolvedSabertooth 990FX R2.0 not booting with 8320, works with older 4core CPU Forum More resources Read discussions in other CPUs categories AMD Intel Intel i5 Intel i7 Phenom Cooling Performance !