ASR B450 Pro4 new build - No post

[cragny]

New Build Asr B450 Pro4
Ryzen 5 2400G
8gb G.SKILL Aegis 8GB 288-Pin DDR4 SDRAM DDR4 3000 (PC4 24000) Memory (Desktop Memory) Model F4-3000C16S-8GISB
RAIDMAX HYBRID 2 RX-530SS 530W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply, New Version with Build-in LED Fan On/Off Switch (Newegg Desc.)

Issue: No Post No display
All Parts Listed brand new
Symptom:
Cpu fan spins up, no post, no display, Cpu fan slows and recycles
TS:
1. Replace Psu (Ocz Modular 500W) No change (nc)
2. Alt mem slots, (nc)
3. Alt display (nc)
4. Reseat psu ports (all seated firmly)
5. Remove check and remove other header pinned items (pled etc) (nc)
6. Let system remain on for 3 minutes (no heat on cpu heatsink) (nc)
7. throw it outside from my second floor deck into a snow drift (system cpu fan no longer spins)
OK That one I didn't try

1st thought is incompatible memory (not on qvl)
Other thoughts?
Anyone else see this cpu fan cycling like this?

 

[alexoiu]

Also betting on memory. Try testing different module (lower speed).

 

[cragny]

Yeah, I looked online today for the fastest rated on the Qvl. I found many 16gb/2400, but was really looking for faster... Anything faster was very limited on the QVL. and harder to find online.

 

[alexoiu]

Maybe a BIOS update is needed for faster RAM to be supported, but the system would have to POST for that.

 

[cragny]

Maybe a BIOS update is needed for faster RAM to be supported, but the system would have to POST for that.

No change:
reseated everything again.
removed mem module
connected hdmi
No beeps
fan spins, slows, then spins up againl cycles
tried alternate speaker
tried reversing speaker cable
returned to original brand new psu
No change - no post - no beeps with or without memory, no display
Looks like the B450 is D O A
frickin crap

 

[alexoiu]

Try returning both board and CPU, if under warranty.

 

[cragny]

RMA'd Mem & MB...NEXT:
ASRock X470 Master SLI/AC Vs. GIGABYTE X470 AORUS ULTRA GAMING Vs. MSI B450 GAMING PRO CARBON AC

 

[alexoiu]

Maybe Gigabyte...

 

[aardwork]

New Build Asr B450 Pro4
Ryzen 5 2400G
8gb G.SKILL Aegis 8GB 288-Pin DDR4 SDRAM DDR4 3000 (PC4 24000) Memory (Desktop Memory) Model F4-3000C16S-8GISB
RAIDMAX HYBRID 2 RX-530SS 530W ATX12V V2.2/ EPS12V SLI Ready CrossFire Ready Modular Power Supply, New Version with Build-in LED Fan On/Off Switch (Newegg Desc.)

Issue: No Post No display
All Parts Listed brand new
Symptom:
Cpu fan spins up, no post, no display, Cpu fan slows and recycles
TS:

1. Replace Psu (Ocz Modular 500W) No change (nc)
2. Alt mem slots, (nc)
3. Alt display (nc)
4. Reseat psu ports (all seated firmly)
5. Remove check and remove other header pinned items (pled etc) (nc)
6. Let system remain on for 3 minutes (no heat on cpu heatsink) (nc)
7. throw it outside from my second floor deck into a snow drift (system cpu fan no longer spins)

OK That one I didn't try

1st thought is incompatible memory (not on qvl)
Other thoughts?
Anyone else see this cpu fan cycling like this?

Same thing happened to me, same motherboard, same cpu but with Adata xpg M.2 card and Ballistix Sport memory.
But it wasn't a bad mobo or a bad processor ... so, for what it's worth:

1. Absolutely nothing, no power, no fans.
2. Everything out, psu and case fan working.
3. Everything re-seated including cpu and stand-offs but symptoms now the same as Cragny's - all fans working then recycling and no post
4. Everything retested and re-seated (except the cpu). Same result.
5. It must be a bad motherboard. Surely it couldn't be the cpu?
6. Seated the Ryzen 5 2400G ultra-ultra carefully for the third time and ... everything worked.

ASRock no-beep error codes indicate bad memory or 'bad cpu' (you'll need a separate case beeper) which I suppose covers misplaced.
This is the first time that I've used an AMD socket - I found the PGA processor much more fickle to place with its lever and tray arrangement; maybe this (twice) caused a tiny pin misalignment before the third successful attempt. Can it also bend the pins?
Anyhow, it was dumb human error and if the same thing happened again I'd look straight at the CPU seating before anything else - although I still think Intel processors with their notched sides much easier to waggle on to the socket pins without error.
The PC, £630 including monitor and retail Windows 10, is now running smoothly, quietly and very, very quickly.