![]() and no, I didn't rub it in while using the scotch tape, lightly enough so the words on the CPU disappeared.Ĭlearing CMOS It caused power up afterwards with straight up power up when using the rocket switch on PSU without pushing the power button up front, but still only fans and CPU LED. ![]() So without swapping another CPU in, is there a way to tell it's the mobo or CPU? I could find another AM3/AM3+ CPU, but its hidden somewhere in the basement where I can't find it easy. So I heard that even without CPU, memory, and video put into mobo, the mobo is still supposed to beep or at least the other LEDs were supposed to light up. There's only the green Motherboard power LED and the Red CPU Led and the fans. Even though I didn't put in GPUs, Memory, nor GPU, the LEDs for Video, Memory, and boot device stayed off. Now I took everything off except CPU, heatsink and CPU fan. ![]() Tested with a different set of RAM, only one bar, but problem with same status remains. Tested with only one bar of RAM, you know it. Tested with another known good PSU, ditto. Only RAM, heat sink, and GPU, same red LED and fans and nothing else. I took everything apart and put the mobo on the mobo box and got to work. The system stayed on with fans and the LED and there was no emergency heat shut off by the system.įrustrated I started breadboarding. (Both the 24 and 8 heads power were connected on the mobo before anyone ask). So I decided to take off the heat sink and felt the CPU when I switched the thing on. no beep even though I put in the little speaker.Īt this point I decided to pull the second GPU out, no cigar. only way to shut off power is to use the rocket switch on the PSU.Ĥ. the optical drive has power and is able to pull itself out when I push the button.Ģ I try to push down Power button for a long time but the system does not turn off. there was no signal on monitor and I noticed the red CPU Led was lit and stayed lit. I put the system together and push power.ġ. Mobo:Asus Sabertooth 990FX Version 1, I think. Power button able to turn system on but not off. TL DR: Only CPU LED stays on, fans only, nothing else no matter what I do. Regardless of the CPU fault LED being Lit I am pretty sure now that the Mother board is the problem the Fault the replacement tested FX8350 did not work.My system won't boot and CPU LED stays on with no post and no other LED lit. ![]() Both AM3+ and transfer everything across pretty cheap but I would like to know what is happening. or maybe the Bios chip is corrupted/failed I can buy a bullet proof Giggabite GA series ot ASUS Sabertooth 990FX. I will leave things as they are for 24 hours see what other suggestion come in I am feeling that the fault could be a capacitor or some other part of the CPU circuit on the Board that is so close to the CPU it indicates as a CPU Fault. it was connected I removed it and tested it it's working. Another strange oddity is that the motherboard is designed to not boot up if the speaker is not connected. I have found numerous occurrences of my problem on youtube but people only appear to be able to confirm what has happened not why. ASUS and AMD have a symbiotic relationship as companies it is why their products work so well together. The power to MB green light comes on and the on/ off button illuminates that is all I get so for some reason the CPU so power is getting to the board. In my case the single beep does not occur the fan on the CPU starts as normal. When I turn on the normal result is a single Beep this is normal for all computers as you know it is the POST ( Power on Self Test) beep. The Board it's self has a Red fault LED that if lit indicates a general Motherboard fault this is not lit. The ASUS M5A99X motherboard is self diagnostic so just below and to the right of the CPU is a Red LED that if lit indicates a CPU fault or the section of the board directly associated with it.
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