because I can get it to boot I think it rules out cpu, ram and gpu possibly hdd although I am not certain. I have tried different ram, different gtx 970, and different psu out of a working system with no difference. As soon as you move the pc upright or lie it flat it freezes totally and you have to pull the power and start again. when I reset the boot priority it would boot to windows and appears to run normally opening programs. I found that pressing the direct key to the bios would allow the pc to boot to bios as long as the pc was at an angle. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS or (2) the serial number of the product is defaced or missing. when it sticks like this the reset switch does nothing you have to cut the power and pull the cord. suspected a short or loose cable took everything out and carefully reinstalled but that seemed to make it worse it would not boot past the red cpu led. checked all the usual suspects no problems found, but notice the pc would boot if it was leaning at an angle (about 45 degrees so the mb is facing up). I'll contact AMD and asus though, thanks for the help.System was ok until it stuck at red cpu led on boot up cpu and gpu fan spinning. This current board has some mileage on it, (secondhand from someone else who treated it well) but it shouldn't be too serious. I had a working (but 4 EPU pin) PSU before that worked on my previous motherboard, it did not work on this one. You didn't mention, did the computer EVER run? or is this a new build? Obviously, if you can get it to boot with that PSU then the problem is your PSU. Just need know good power to see if you can get to the BIOS/Boot screen. At this point it doesn't even need to be the same power as the Golden Field. One last thing to try is to hook up a different psu one that is a known good, working unit. I would, as soon as able, contact manufactures. By registering your device, you can easily manage your product warranty, get technical support and keep track of your repair status. I have just checked the processor pins thoroughly (they're fine) and have done as you said for the thermal paste and there is no change, the same problem persists. However, reviews of it say that it is "all right in non-stressful environments" It's a 650W model. My PSU is the Golden Field ATX-S728 which I got locally but apparently is a PSU bought by a chinese company from other companies then rebranded. It is very rare, but we worked with another forum member this spring and summer and he did EVERYthing trying to track down a problem and finally AMD confirmed a bad CPU and did an RMA. Lastly, at least for now, there is a possibility that the CPU is defective. Can you provide the actual maker and model and the power it is supposed to deliver (Sticker on the side of the psu), please? It could be bad. Who makes that PSU? I have never heard of it. I use Arctic Silver 5, but there are lots of good versions available (see link): Too much TIM can be worse then none at all. The cooler and its bracket will spread the TIM adequately. My suggestion is do Not us as much TIM as is shown and don't spread it just place a drop about the size of a grain of rice in the middle of the CPU and attache the cooler. Follow this guide (with one small change that I will mention) and clean the CPU and cooler and again install with new TIM. Asus TUF 990FX Sabertooth R2 2901 Bios: Cooling: Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED: Memory: 16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1. Having the CPU fan on or off, plugged or unplugged does not make any difference.ġst, the cpu fan has to be connected or the board may not boot.Ģd Try removing the CPU again, and very carefully check for Any bent pins. I've followed the guides on resetting the CMOS, I flashed the BIOS, followed the guides on making sure that the EPU is connected, I've booted up with the ram in many different positions and pushed down. I put thermal grease on the cpu top and spread it evenly across its surface, I don't think I got any on the sides. So, I have this motherboard here, it's kept a red CPU light despite replacing the PSU and giving the system a new fan. Did you connect the CPU fan and, if you just installed the CPU, did it have thermal interface material (TIM or Thermal grease) on it or did you put some on it? Are any of the fans spinning up?
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