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Aorus B550 PRO not booting up, unidentified LED sequence

Alkor
By Alkor
in Troubleshooting
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Posted

Hi all,
It has been a while since I assembled a new PC, I never encountered this kind of problem.
CPU ryzen 9 5900X
CM AORUS B550 PRO
RAM HyperX Fury 3000Mhz CL15 16Go x2
2SSDs SATA and one NVMe (NVMe gen3 on PCI-E 2 slot)
GPU GTX 1660 Ti
Most of the stuff is brand new but the graphics card waiting for an upgrade (I know it's working properly, at least).

The problem : everything seems to start, fans are all on (CPU, case, GPU) but nothing appears on display, can't even get a boot screen.
There seems to be a LED error sequence on the MB that looks like VGA (10secs) - CPU (.5sec) - RAM (5secs) and then loops indefinitely.
Tested each RAM one by one on different mem slots.
Tested 2 different PCI-E slots for graphics card.

Can't find much info on the LED error sequence, documentation is pretty light and there seems to be a pattern. Don't know what to do or test next.
Any input ?
Thanks !

B.

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I dont think its the sequence but just which LED stays on is the issue.

Kinda weird it loops...

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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reseat your cpu. also, does your motherboard support zen 3 right out of the box? some don't and need a bios update.

PC specs:

Ryzen 9 3900X overclocked to 4.3-4.4 GHz

Corsair H100i platinum

32 GB Trident Z RGB 3200 MHz 14-14-14-34

RTX 2060

MSI MPG X570 Gaming Edge wifi

NZXT H510

Samsung 860 EVO 500GB

2 TB WD hard drive

Corsair RM 750 Watt

ASUS ROG PG248Q 

Razer Ornata Chroma

Razer Firefly 

Razer Deathadder 2013

Logitech G935 Wireless

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  • Author

Thanks for your answers, I thought B550 motherboards were supposed to support the 5000 series out of the box, but I might have misunderstood that they needed to be flashed first.
I'll probably try reseating the CPU and Q-flashing the bios while it's out. Thanks !

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Just now, Alkor said:

Thanks for your answers, I thought B550 motherboards were supposed to support the 5000 series out of the box, but I might have misunderstood that they needed to be flashed first.
I'll probably try reseating the CPU and Q-flashing the bios while it's out. Thanks !

CHECK before you do anything with the bios. (it should tell you which CPU are supported for which version)

Certain version support only certain CPU's.
There is no update to catch all. ;)

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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39 minutes ago, HanZie82 said:

CHECK before you do anything with the bios

I checked on the website, bios F10 and up should support ryzen 5000, but how can I check which bios is currently installed if I can't boot at all ?

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17 hours ago, Alkor said:

Thanks for your answers, I thought B550 motherboards were supposed to support the 5000 series out of the box, but I might have misunderstood that they needed to be flashed first.
I'll probably try reseating the CPU and Q-flashing the bios while it's out. Thanks !

You don't need to remove CPU in order to USB flash the board. It's just an option.

CPU: Ryzen 5800X3D | Motherboard: Gigabyte B550 Elite V2 | RAM: G.Skill Aegis 2x16gb 3200 @3600mhz | PSU: EVGA SuperNova 750 G3 | Monitor: LG 27GL850-B , Samsung C27HG70 | 
GPU: Red Devil RX 7900XT | Sound: Odac + Fiio E09K | Case: Fractal Design R6 TG Blackout |Storage: MP510 960gb and 860 Evo 500gb | Cooling: CPU: Noctua NH-D15 with one fan

FS in Denmark/EU:

Asus Dual GTX 1060 3GB. Used maximum 4 months total. Looks like new. Card never opened. Give me a price. 

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4 hours ago, Alkor said:

Solved.

The bios Q-flashing did the job.
Thanks again for your answers.

Thanks for reporting back. :)

When i ask for more specs, don't expect me to know the answer!
I'm just helping YOU to help YOURSELF!
(The more info you give the easier it is for others to help you out!)

Not willing to capitulate to the ignorance of the masses!

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