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CPU or Mainboard defective

Plermpel
By Plermpel
in CPUs, Motherboards, and Memory
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Posted

Ahoi,

 

I got a friends prebuild here to repair, first it started to shut down while gaming, then it sometimes didn't detect the SSD and after a while it completly refused to boot.

So I took the thing home to test a few things, first put his M.2 in my testbench, wasn't detected so I got a new one. Now it also doesn't detect the new SSD, which works perfectly fine on my test bench.

I don't have any spare Intel 9000 Series arround, so now I am not shure, if the Board or the CPU is dead.

I looked up the i5 9400 and found out it only has 16 PCIE lanes so I think it would be the board?

What do you guys think?

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https://linustechtips.com/topic/1381295-cpu-or-mainboard-defective/
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I would start with the motherboard. Unless you can test the cpu in a board you have.

Sorry I probably edited my post. Refresh plz. Build Specs Below.

System

  • CPU
    Ryzen 9 5900x
  • Motherboard
    ASUS ROG STRIX X570-F
  • RAM
    32 GB (2X8) Trident Z Neo 3600MHz CAS 16
  • GPU
    ASUS ROG STRIX RTX 3070
  • Case
    Corsair 4000D Airflow
  • Storage
    Sabrent 1 TB TLC PCI 4.0 NVMe M.2
  • PSU
    NZXT C850 Gold PSU
  • Display(s)
    BenQ MOBIUZ EX2710Q 27"
  • Cooling
    Corsair H100i RGB Pro XT 240mm
  • Operating System
    Windows 11
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The problem is that you would need at least one spare CPU of the same generation and a spare motherboard of the same chipset to test. 

 

Either find a way to borrow one or like rent it from a hardware store or something. The fact that most repairmen require at least one sample of each type of part can get expensive. 

Fuck you scalpers, fuck you scammers, fuck all of you jerks that charge way too much to tech-illiterate people. 

Unless I say I am speaking from experience or can confirm my expertise, assume it is an educated guess.

Current setup: Ryzen 5 3600, MSI MPG B550, 2x8GB DDR4-3200, RX 5600 XT (+120 core, +320 Mem), 1TB WD SN550, 1TB Team MP33, 2TB Seagate Barracuda Compute, 500GB Samsung 860 Evo, Corsair 4000D Airflow, 650W 80+ Gold. Razer peripherals. 

Also have a Alienware Alpha R1: i3-4170T, GTX 860M (≈ a 750 Ti). 2x4GB DDR3L-1600, Crucial MX500

My past and current projects: VR Flight Sim: https://pcpartpicker.com/user/nathanpete/saved/#view=dG38Jx (Done!)

A do it all server for educational use: https://pcpartpicker.com/user/nathanpete/saved/#view=vmmNcf (Cancelled)

Replacement of my friend's PC nicknamed Donkey, going from 2nd gen i5 to Zen+ R5: https://pcpartpicker.com/user/nathanpete/saved/#view=WmsW4D (Done!)

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CPUs rarely fail. 99 times out of 100, the point of failure in this situation is the motherboard. This is not a failing on manufacturers or some magic that AMD and Intel use in their chips. There's just a lot more that can go wrong on a motherboard compared to a CPU.

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