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Longevity of 1.5v Rated SB RAM Running at 1.65v?

Mar 20, 2010
I bought new Corsair Vengeance 4GB DDR3 1600 RAM for my new build:

CORSAIR Vengeance 4GB (2 x 2GB) 240-Pin DDR3 SDRAM...

It is rated at 1.5v. Looking at reviews, most reviewers are able to get 1866mhz out of it by adjusting the timings from 9-9-9-23 to 9-11-9-27 and upping the voltage from 1.5v to 1.65v. I was able to get it stable per Memtest86 at 9-10-9-27 at 1866, 1.65v.

Is this still a "safe" voltage for my RAM or would it cause a premature death later this year? The airflow in my case is generally good and I have three fans blowing in cold air, two exhaust fans at the top and back of my Antec 300 case.


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Corsair sells those same sticks of RAM marked as something else with voltages of 1.65v. It's perfectly safe and within the IC's voltage boundaries.
Oct 12, 2008
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Here's a rule of thumb I've found for safe ram voltages. Whatever your ram's base voltage is, you can add .15v safely for 24/7 operation. So if you have a 1.5v kit, you'd be safe going to 1.65v