Good call:Look at the SPD tab of CPU-Z. Gaming memory can't usually run 3200 Mhz at 1.2v, but some OEM/JEDEC timings ram can. I expect it will be at least 1.35v. If you're running default timings it may run at that speed, but since you're testing for stability here, effectively undervolting your RAM doesn't seem wise.

I'ts currently set to 1600Mhz (3200MHz) so looking at that I need to check what voltage my board has set and possibly adjust, brb, going to BIOS.