No need to avoid A320 for 3200g unless you're not OCing.
No need to avoid A320 for 3200g unless you're not OCing.
I'm examining this spreadsheet and saw that for low-side VRMs with a mOhm value over 3, they're highlighted in red. That indicates the resistance exceeds 3 ohms, which typically causes higher temperatures. The MSI board is blue and has a lower mOhm rating, while the Gigabyte unit shows red, suggesting it's more sensitive to heat.
Lower resistance is always better. The author of the spreadsheet probably picked 4 mOhm as an arbitrary value from where to change the color. rdsOn is the resistance of the mosfet when it's on, when it behaves like a on/off switch. From there, in a very simplified way, the losses would be Power = I 2 x R so for let's say 10A of current going through the mosfet, you'd have P = 10x10 x 0.003 = 0.3 watts of heat produced. Again, it's more complex than that, lots of other things that are a part of the efficiency calculations... re previous questions, don't know about the asrock board, doesn't look that good to me. As for that gigabyte board ... hmm, probably not, it's with the b350 chipset, and it's probably older design than A320 chipset boards. With a 3200g it would probably be fine, but the vrm is weak (at least you get some heatsink on it, but it's still quite weak). These old B350 boards had problems with memory, some of them couldn't even run memory at 3200 Mhz and you had to go to 3000 or 2933 Mhz. Can't go into detail cause I'm at work now so I can't spend time researching.