Boot Hanging and/or Super-Slow

[Discipulus1]

Motherboard:  ASUS Prime X570-P -- (Purchased New)
CPU:  AMD Ryzen-7 2700 -- (Purchase Used)
GPU: ASUS Dual AMD Radeon RX580 8GB -- (Used)
Memory: G.SKILL TridentZ Series 32GB (2x16GB) 288-Pin DDR4 3200 (PC4 25600) -- (New) 
CPU Cooler:  Cooler Master Master Liquid LC240E RGB AIO -- (New)
PSU:  Rosewill Quark 750W 80+ Bronze, Full-Modular -- (Used)
Boot Drive:  Samsung 970 EVO 500GB - NVMe PCIe M.2 2280 SSD -- (New)
Data Drive:  Toshiba KXG502NVI 1TB - NVMe PCIe M.2 SSD -- (Used) 
Storage Drive:  HGST Travelstar 2.5-inch Mechanical 1TB 7200rpm SATA -- (Used) 
Storage Drive:  TOSHIBA DT01ACA100 3.5-inch Mechanical 1TB 7200rpm SATA -- (Used) 
Case:  Fractal Design Meshify C -- (New)

 

Computer was working fine for several months, then I decided to add some new components --

Memory:  G.SKILL Trident Z Neo Series 32GB (4x8GB) 288-Pin RGB DDR4 3600 (PC4 28800) -- (New)
PSU:  Seasonic Focus GX-850, 850W 80+ Gold, Full-Modular -- (New)

 

-- Since installing new components the computer is hanging and or loading super-slow on boot.

 

I get the BIOS splash screen and am able to go into BIOS.  But it is somewhere after the BIOS that the boot hangs.  If I give it fifteen or twenty minutes sometimes the Windows 10 splash screen will come, but the hang continues there.  If I just leave the computer alone for an hour, the system timesout.

 

When I installed the new components I had some difficulty getting the DRAMs seated and had to power the system off and on a few times (listening to error beeps) without letting the boot fully cycle.  Maybe I damaged something?

 

To swap PSUs I had to change all cables and completely rewire.  Did I miss something?

 

I tried booting from a recovery flash drive and there was no difference.

 

Thanks in advance for any help. 

[Ringtail Jax]

Old xmp profile might be causing instability, reset the bios either with the pins and/or removing the cmos battery and let it sit for a minute without the power cable.

 

Then put in the cable and cmos battery and power it up and go into the bios.

 

Make sure the xmp profile is off initially, if it starts acting up enable the xmp profile.

[Discipulus1]

On 6/7/2020 at 4:19 PM, 178Sonic said:

Old xmp profile might be causing instability, reset the bios either with the pins and/or removing the cmos battery and let it sit for a minute without the power cable. Then put in the cable and cmos battery and power it up and go into the bios.

 

 

It worked.  You are a gentleman, a saint, and a scholar.  Thank you for your help, I will pay it forward.