b850 pro-a wifi No POST

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   b850 pro-a wifi asrock, doesn't POST, it shows red LED, sends power to mouse but not keyboard through USB. After a few seconds it flicks directly to green light and is stuck there.

Nu signal to monitor.
Tested without GPU card, only through cpu and internal graphics.

Tested by reseating ram modules, tested with just one module in different slots.

Removed battery for cmos reset.

I'm a bit lost on what the leds are trying to tell might be the problem with the way it acts. 

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ztilleto Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Jul 2026 Location: Denmark Status: Offline Points: 45	Post Options Post Reply Quote ztilleto Report Post Thanks(0) Quote Reply Topic: b850 pro-a wifi No POST Posted: 17 Jul 2026 at 5:08pm
	b850 pro-a wifi asrock, doesn't POST, it shows red LED, sends power to mouse but not keyboard through USB. After a few seconds it flicks directly to green light and is stuck there. Nu signal to monitor. Tested without GPU card, only through cpu and internal graphics. Tested by reseating ram modules, tested with just one module in different slots. Removed battery for cmos reset. I'm a bit lost on what the leds are trying to tell might be the problem with the way it acts.

Xaltar Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 40638	Post Options Post Reply Quote Xaltar Report Post Thanks(0) Quote Reply Posted: 17 Jul 2026 at 6:12pm
	What are your full system specs? CPU: RAM: Power supply: GPU: Drive/s: What diagnostic lights come on when you power the system? There are 4 of them on the upper right corner of the board just above the 24pin power header. CPU, DRAM etc. A green light indicates that it completed power on self tests successfully for that particular component (CPU, RAM, Boot etc). Your RAM should be in slots A2 and B2 on the board. Make sure they are properly seated in the slots as they can be tight on new boards. Don't use too much force but enough to make sure they are fully inserted.


ztilleto Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Jul 2026 Location: Denmark Status: Offline Points: 45	Post Options Post Reply Quote ztilleto Report Post Thanks(0) Quote Reply Posted: 1 hour 51 minutes ago at 8:23pm
	The problem is that it doesn't do the POST leds. That is the main thing that I would like to know if there is something that could cause it to just light first led and then just keep it for a bit and then directly to green. With no POST led progression for memory or vga, and it doesn't send GPU signal either through GPU board or internal cpu.

ztilleto Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 17 Jul 2026 Location: Denmark Status: Offline Points: 45	Post Options Post Reply Quote ztilleto Report Post Thanks(0) Quote Reply Posted: 1 hour 21 minutes ago at 8:53pm
	Cpu: AMD Ryzen 7 9800X3D 4.7 GHz 8-Core Processor Cooler:Deepcool LS720 SE 85.85 CFM Liquid CPU Cooler Motherboard: ASRock B850 Pro-A WiFi ATX AM5 Motherboard Memory: TEAMGROUP T-Create Expert 32 GB (2 x 16 GB) DDR5-6000 CL30 Memory SSD: Samsung 990 EVO Plus 1 TB M.2-2280 PCIe 5.0 X2 NVME Solid State Drive GPU: Gigabyte WINDFORCE OC SFF GeForce RTX 5070 12 GB Video Card PSU: Deepcool PN850M 850 W 80+ Gold Certified Fully Modular ATX Power Supply