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Lower RAM voltage than recommended?

Last response: in Overclocking
a b K Overclocking
April 27, 2012 1:55:07 AM

Due to space constraints limiting (air) cooling options in my case, I overclocked my rig with the lowest possible voltages to maximize processor speed while minimizing heat. (See sig for settings)

Anyway, I bumped my Patriot sector 5 RAM up to 1343 and loosened the timings to 9-9-9-24 per Patriots recommended specs.

Well almost. I never bumped the voltage. Patriot recommends 1.65 volts, but I left it at 1.5 volts.

I have ran memtest with multiple passes and been using these settings for a couple months with no problems. (That I know of)

If there was a problem with this lower-than-spec voltage, what type of symptoms should I look out for?

I don't want to bump voltage if I don't need to, but I'm not sure how to be "sure" a voltage bump isn't needed.


April 27, 2012 2:30:57 AM

Question: Is your memory rated at 1333 or 1600?
I've ran into this, where I can run my 1600 ram @ 1333 at 1.5v with no problems. That may be because it is rated at 1.65v but at 1600. Either way, I exchanged it for some 1600@1.5v so I do not have to worry about the issue any more.

Edit: If it passes memtest and a few hours of prime95 I would think you can take that as a good sign. If it works with the 1.5v, you will not be doing any harm by running it that way.
a b K Overclocking
April 27, 2012 11:57:34 AM

It comes "out of the box" at 1066 with 777 20 timing @ 1.5v. However it's rated for 1333 with 999 24 timing and 1.65v.

I can bump up the voltage if needed, but I'm not sure how to "know" it's needed.