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Defective motherboard Asus Z170A Gaming Pro Carbon

Hi guys! First time posting on this forum. I have an Asus Z170A Gaming Pro Carbon that fails on CPU detection. Please help.

Symptoms:

  • CPU led lights up
  • The fans are spinning
  • Motherboard powers on
  • No image, no post code
  • The processor heats up a bit for 2 seconds and then cools down 

Components:

  • Asus Z170A Gaming Pro Carbon socket LGA1151
  • 1x 8GB DDR4
  • No bent pins
  • No connected peripherals, no HDD and no connected GPU 
  • x8 CPU power pin
  • Intel i5 gen 6

What I've tried so far:

  • I changed the processor with i5 generation 7 (both processors are tested and works just fine)
  • I tried to start the board using only 4 power pins (on left and right side individual)
  • Disconnecting CPU power while motherboard was still on (nothing happens)
  • Resetting CMOS using reset pins while motherboard wasn't plugged in and then removed battery for 5 mins.
  • Turning on the motherboard without RAM (same result)
  • Turning on the motherboard without CPU (same result)
  • I changed the PSU 3 times
  • I tried to put pressure on the processor using my hand

Motherboard worked just fine 2 days ago, then stopped working for no reason 

1620580861658373091930748607856.jpg

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do you not have a CPU Cooler hooked up?

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Tell us more about the memory you're using. Part Number/Rev? Have you tested it in another machine since this problem began? Which slots did you test in?

Main: AMD Ryzen 7 1700X, Nvidia RTX 2060, 16 GB 2400 MT/s DDR4 Fedora 34 x86_64

Secondary: Intel Xeon W3680, Nvidia GTX 660, 24 GB 1333 MT/s DDR3 Windows 10 Home x86_64

Server: 2x Intel Xeon X5670, 72 GB 1333 MT/s DDR3-R Ubuntu Server 20.04.1 LTS x86_64

Laptop: Intel Core i5-3320M, 16 GB 1600 MT/s DDR3 Fedora 34 x86_64

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2 minutes ago, tkitch said:

do you not have a CPU Cooler hooked up?

I do. I took out the cooler to take a picture 

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1 hour ago, svmlegacy said:

Tell us more about the memory you're using. Part Number/Rev? Have you tested it in another machine since this problem began? Which slots did you test in?

HyperX Fury Black 8GB, DDR4, 2400MHz, CL15, 1.2V, I tested memory on other computer and it works. Used this stick of memory on all slots, one by one

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