Asus z170 pro gaming BOOT DEVICE LED (BUT WORKING!)

nikovroullis

Prominent
Jan 6, 2018
10
0
520
Hello,

I just got Asus z170 pro gaming mobo and it has problems. At first i couldnt get it post because DRAM Led was on. I found out that B channel not working (i now have 2 x 8 gb ram in A channel). I checked cpu socket pins and they were okay. I also checked cooler tightness, And found no problem either. I got Cpu (i5 6600k) and ram (in A and B channel) which were working perfectly together so there's almost no change for bad cpu. After everything computer works and loads windows but when i look to my mobo i see Boot device led on. Bad mobo?
 
Solution
Pins look ok. Now, with board outside the case, try installing the CPU, CPU cooler, RAMs and see if same issue.
If still the same, I'd RMA both board and CPU.