Are you hearing any spashing sounds? Did you do a lot of tipping of your case, the rad on top with outlets facing down can produce a large a bubble in the rad.
https://koolance.com/gpu-210-video-card-vga-chipset-water-block
50mm hole spacing are within the range of the hold down arms.
https://koolance.com/files/products/diagrams/gpu-210_d1.pdf
Used this
https://www.ebay.com/itm/MAZE4-DLX32-INTEL-CHIPSET-RD600-240-/233340737743?_trksid=p2047675.l2557&nma=true&si=HQaXjOfNB0TEdi5zo6%2B5Ahk2FLk%3D&orig_cvip=true&nordt=true&rt=nc
and this
https://www.ebay.com/itm/30pcs-Aluminum-Heatsink-Cooler-Adhesive-Kit-for-Cooling-Raspberry-Pi/362597555469?_trksid=p2485497.m4902.l9144
on my 1660 gtx. gpus are
easy to cool.
Very nice loop!!!
Here is my Ryzen 1600, Ambient 23c, 70c max core. A 120 rad (Swiftech 1st gen.) 1 gentle typhoon 1800,1 comair rotron mc12b3. Blocks are ek supremacy mx and koolance gpu210 with a d5 pump, all in a lan party case.
ASUS A88XM-E BIOS Beep Codes
BIOS Beep sound
Description
1 short beep
VGA detected
Quick boot set to disabled
No keyboard detected
2 short beeps
When using Crashfree to recover BIOS, the new BIOS is successfully recognized
1 continuous beep followed by 2 short beeps then a pause (repeated)
No memory detected
1 continuous beep followed by 3 short beeps
No VGA detected
1 continuous beep followed by 4 short beeps
Hardware component failure