Its been about 6 months since the last post but that doesn't mean I haven't been crunching. I've decided to update all the crunchers. I have two standard builds for x86_64 machines, one for CPU compute and the other for GPU compute, but also able to do CPU work if needed. The CPU compute machine were originally using a Ryzen 3900X but had been upgraded to Ryzen 5900X.
CPU compute
Motherboard: ASUS B850-Plus Wifi
CPU: Ryzen 7900
Memory: 96GB (2 x 48GB) DDR5-5200 MHz
Cooler: Noctua NH-U9S
SSD: Crucial P510 (DRAM-less) 2TB
I opted for 96GB of memory, however one machine locked up so I have put a 64GB kit in temporarily while I return the memory kit. It would boot with a single stick of 48GB memory but as soon as the 2nd stick was added it refused to boot.
GPU compute
Motherboard: ASUS B850-Plus Wifi
CPU: Ryzen 7600
Memory: 32GB (2 x 16GB) DDR5-5200 MHz
Cooler: Noctua NH-U9S
SSD: Crucial P510 (DRAM-less) 1TB
I'm reusing the RTX 3060Ti GPU for the time being. The next step up for the GPU looks like an RTX 5070 but I really don't like the 12VHPWR power connector that Nvidia has switched to using.
I have one more Ryzen 3600X machine that wasn't being used and might build it as a CPU compute machine if I can find a Ryzen 7900 (non-X) CPU. All the online stores I buy from seem to be selling the X version which has a higher base clock, higher boost clock and higher wattage. I reuse the case, cables and power supplies. The most expensive parts are the memory followed by the SSD's even though they are RAM-less these days.
Another quirk that I had was the new motherboards have a 2.5G network port built in, however when I connect it to a 2.5G switch they drop their network connection. It works fine when plugged into a 1G switch using the same cable. I thought it might be drivers but I have the correct one installed. The old machines all used PCIe add-in cards so I have simply put them in the new machines. Strange thing is most of the PCIe network cards have the same Realtek chipset as the motherboard and they work fine.
