Question New AM5 build. no post; only quick flash. Any ideas?

[BlindPumpkin]

I'm attempting to bench test my new am5 build.

gigabyte aorus b650 elite ax
AMD 7600x (with deepcool ak500 cooler)
2x16 gskill trident z5 in A2 and B2
corsair cx750m
gigabyte eagle rx6650xt
crucial p5plus 1000gb

Ive tried with and without the SSD installed, ive checked and rechecked the cables insertion, double checked the cpu installation, one ram stick at a time. I am at a loss.

Also, Ive tried without the gpu installed with the same result. quick flash, then nothing.

Any guidance would be much appreciated.

Thanks for reading.

 

[norcalsc]

Do you have the cpu cooler fan plugged into the correct header CPU_fan?

 

[BlindPumpkin]

Do you have the cpu cooler fan plugged into the correct header CPU_fan?

Yes.
The cooler is plugged into CPU_FAN.

Thanks for the reply.

 

[Karadjgne]

How long did you wait for post? After any power off situation, the memory goes through retraining, that can take a few minutes in which the monitor stays blank and you might get several reboots.

 

[BlindPumpkin]

How long did you wait for post?

I didn't wait long. I expected some fan movement and/or stable LEDs. Since I didn't get that I looked for smoke.

Is there a benefit to letting it sit not posting?

Pardon my ignorance if this is obvious.

Thanks for replying.

 

[Karadjgne]

AM5 doesn't use xmp timings as such, rather it uses them as a base model. After a full power off, when you first start up the pc, the bios runs a memory training. It's basically hunting for the best ram settings it can apply, like an Auto OC. It'll pick some timings, reboot, see if they are viable, try some new ones etc. It might go through 3 or 4 reboots before it likes the ram timings and can take several minutes for everything to officially startup and get a screen.

 

[norcalsc]

am5 does take ALOT longer to boot as mentioned above

 

[sonofjesse]

My AM5 took maybe a hair longer, but not bad, like a couple of reboots maybe. Posted pretty normal it seemed to me or I was not paying attention.

 

[Karadjgne]

View: https://youtu.be/L8OH5cTnZbg

If you watch the video, Jay talks about the memory training, after he forgot that that's what was happening.

 

[BlindPumpkin]

Thanks for this video. I don't believe this is my issue because I'm not getting anything. no lights. no fans. nothing except the quick flash.

Thanks for replying.

 

[sonofjesse]

Check the MB display readout or dummy lights to see where its getting stuck on in post.

 

[BlindPumpkin]

Check the MB display readout or dummy lights to see where its getting stuck on in post.

I get nothing. no lights. steady or flashing beyond a quick flash upon reset.

Thanks for the reply.