I have a pair of Samsung M391A1K … 43BB1-CRCQ , they’re 8GB 1Rx8 PC4-240 … 0T-ED1-11 ECC RAM. Plugged it into my Asrock A520M motherboard.
Booted up as 2400MHz 1.2V fine, I wanted to try overclocking it and did 3200MHz 1.35V. Did not POST. OK, no worries, I reset CMOS but… it won’t boot again with these sticks.
I removed one stick of RAM, it boots. One of the sticks of RAM is working, the other won’t boot, whether it’s the sole stick or one of multiple sticks.
Did I kill my ECC ram with a brief attempt at 1.35v 3200mhz overclock? Anything I can do?
You did not kill your ram with that low of a voltage, you probably have a bad ram stick, RMA it.
ECC ram is no different than regular ram besides the extra chip. I’ve had 2400mhz ECC between 1.4v-1.45v for years. Could go higher but it quickly loses stability from the heat.
There are hobby overclockers that’ll bring DDR4 to 1.8v with the proper cooling. Though this is enough power there may be possibly be long term issues with degradation on the CPU’s SOC, which is fragile.