I have a Gigabyte P55A-UD4P motherboard and it says it supports up to 4 1.5v DDR3 memory modules (in the manual).
I'm just wondering if it's safe to use 1.65v modules? I bought some Corsair memory designed for I7 and I5 processors, which I thought used 1.65v or lower (1.5v). So I went by that and assumed the mobo would support it, since it supported the processor. I assumed it would support both voltages.
The memory I bought was Corsair XMS DDR3 1600 C9 Model: CMX4GX3M2A1600C9
When I started up my build, I noticed it running at 1.5 volts and a lower speed.
Is it safe to switch it to 1.65v and the higher speed, or am I stuck at the lower speed?
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It should handle 1.65V. You can always go into the bios and see how high it will let you set the ram voltage.