Computer won't boot, EZ Debug DRAM light on

Solved
Anonymous user -  
 Anonymous user -
Hello, I just ordered components to build a computer:

Motherboard: Msi B365M Pro VDH
Processor: I5 9400 F
Graphics Card: Asus Geforce GTX 1660 ti
CPU Cooler: Deep Cool Gammaxx 400
Power Supply: Corsair RM 850
RAM: 2x8 GB DDR4 Corsair Vengeance 3000 MHz
Case: Empire Gaming Warfare 3 LED fan

I installed an old Seagate 1 TB HDD

I put everything together, and when I start, the EZ Debug LED on the motherboard lights up, specifically the DRAM LED lights up in steady white. So, black screen, no boot, no access to BIOS, etc...

At times, the CPU LED lights up for less than 1 second and then goes back to the DRAM LED.

The fans speed up when it switches to the CPU LED.

Yes, I specify that everything is powered, fans are spinning, including the CPU cooler. The GPU is powered. The USB ports are also powered.

Knowing that the motherboard only supports RAM from 2133 MHz to 2666 MHz and that my RAM is 3000 MHz, I thought it might be the issue. So I tested with 2400 MHz HyperX RAM.

Still the same problem, no boot, DRAM LED on.

I performed CMOS clears, disassembled/reassembled the PC, checked the processor (the pins and thermal paste) and found nothing. It's still the same.

I attempted a BIOS update of the motherboard by creating a bootable USB drive with the latest version.

Now I can't remove the motherboard because the standoffs are turning with the screws...

I wanted to try an outside-the-case assembly, to be sure it's not a short circuit, even though I had already done it and it yielded nothing.

I tested the RAM in all slots, one in the second, etc.

In short, I'm at my wits' end ^^

If anyone has an idea, thanks in advance ;)

Any help is appreciated.

6 réponses

jumulka Posted messages 12090 Registration date   Status Membre Last intervention   4 619
 
Hello,
I suspect a motherboard issue, check that you didn't install the CPU the wrong way around

have you already tested all the RAM slots with a single stick of RAM?

you will need to remove this motherboard, do all the standoffs come out with the motherboard?
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Anonymous user
 
Hello, thank you for your quick response.

The processor is indeed in the right direction, and I tested all the slots with a single RAM stick.

I think I can manage to remove the motherboard; it will take some time, but it should work out.

Just so you know, I already changed the motherboard once (same model); the previous one I received simply didn't work at all, I mean no power, nothing at all.

Maybe it's defective too, but having two in a row would be rare.

I'm wondering if putting my processor into this defective motherboard damaged my processor?

I'll remove the motherboard tomorrow morning and do a test outside the case with the minimum setup to see.
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Anonymous user
 
Oh, I should also add that the internal speaker doesn't beep; it does beep obviously when I start without RAM, for example. So it works fine.
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jumulka Posted messages 12090 Registration date   Status Membre Last intervention   4 619
 
2 defective motherboards of the same model; if you bought the same one, it’s not necessarily rare.
It’s also not impossible that the processor is faulty.
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Anonymous user
 
I took everything apart and checked (short circuit, pins, thermal paste) and still nothing. I'm increasingly leaning towards the motherboard, which is supposed to be compatible with my processor... or maybe the power supply... I'm going to see if I can find another motherboard.
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Anonymous user
 
Well, after some tests and others, it's my processor that fried because of my first motherboard. I just received a new processor, the i5 9400f, and everything is working perfectly. Thanks to you ;)
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