MSI X99s won’t post/ boot?

[Boygor]

Hi there,

My PC decided to die on me the other day and I made the assumption it was the PSU and ordered a new one. Given that I’m posting here it wasn’t the issue!

The PC powers on but won’t display anything on my monitor. The motherboard, an MSI X99S, throws up LED numbers in this sequence: 04, AF, 60, 61, 66, 55 then hangs on 04 before repeating the same sequence until I turn it off.

I’ve referred to the manual and, assuming that either 55 or 04 are the errors it’s related to either “power on south bridge initialisation” or “early memory initialisation”...

Thing is I assume it should pick an error and stick with it so the fact it’s going in a loop has me flummoxed.

So... given I got a new PSU and a new HDD, have cycled through the RAM In each slot one at a time, what exactly are my options here?

I don’t want to replace the motherboard and CPU only to find out that it’s something else

Any help/ pointers that you guys can provide would be most helpful.

 

[Jamin280672]

Hi there,

My PC decided to die on me the other day and I made the assumption it was the PSU and ordered a new one. Given that I’m posting here it wasn’t the issue!

The PC powers on but won’t display anything on my monitor. The motherboard, an MSI X99S, throws up LED numbers in this sequence: 04, AF, 60, 61, 66, 55 then hangs on 04 before repeating the same sequence until I turn it off.

I’ve referred to the manual and, assuming that either 55 or 04 are the errors it’s related to either “power on south bridge initialisation” or “early memory initialisation”...

Thing is I assume it should pick an error and stick with it so the fact it’s going in a loop has me flummoxed.

So... given I got a new PSU and a new HDD, have cycled through the RAM In each slot one at a time, what exactly are my options here?

I don’t want to replace the motherboard and CPU only to find out that it’s something else

Any help/ pointers that you guys can provide would be most helpful.

Have you tried clear the cmos ? after a very strange power cut the other day in my area, I had to force shut down my PC that refused to switch off in a power outage, when I switched back on I got stuck on post code 55 too, I thought the power cut had killed something, but a clear of the cmos fixed it, MSI motherboard too.

 

[Boygor]

Hey, thanks for getting back. I found the issue... it was a stick of RAM. I must have tested the same (working) stick twice by accident...

I need to put them in more distinct piles if this happens again