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Tom's Hardware > Forum > Motherboards & Memory > Memory > [Solved] 1.65v on a 1.5v recommended AMD board.

[Solved] 1.65v on a 1.5v recommended AMD board.

Forum Motherboards & Memory : Memory [Solved] 1.65v on a 1.5v recommended AMD board.

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bret   02-01-2012 at 09:13:54 PM

Hello,

I've been having memory problems with my current ram. I am going to RMA my current ram and use old RAM that I have laying around. The old ram that I have is rated at 1.65v, but my mobo recommends 1.5v. Would it be a problem to run 1.65v on my AMD 1.5v board?

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inzone   02-01-2012 at 09:34:37 PM

Yes you want to run the 1.5v ram on your motherboard because it will directly affect the cpu which is why they sugest the 1.5v ram.

Reply to inzone
need4speeds   02-01-2012 at 09:57:24 PM

Most boards let you set the memory voltage, timings and speed manually. Unless the board wont go to 1.65volts, once you have the memory set properly it should run just fine.

I am running 1.65volt mem on a FM1 board that defaults at 1.5volts. The board's default was 1.5volts, ddr3-1066 with ddr3-1600 1.65volt mem which is a big speed penalty. The system did boot up fine and i was able to go into the bios and correctly set the memory.


Message edited by need4speeds on 02-01-2012 at 10:03:05 PM
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kinggraves   02-01-2012 at 10:00:15 PM

Is there any options in the BIOS to undervolt the memory? What's the motherboard?

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need4speeds   02-01-2012 at 10:11:37 PM
Best answer

Most memory would be rated at something like ddr3-1600 1.65volts, ddr3-1333 1.60volts, ddr3-1066 1.50volts. It will be different for each brand/model and speed of memory.

You have to google the memory sticks you have, find their speed/timings/voltage chart on their site. Most will tell you the max safe voltage and lowest voltage/speed the memory will work at.

Mine are kingston sticks.

My board is a gigabyte A75M-UD2H

It will vary from board to board on what settings they offer in the bios.

Reply to need4speeds
bret   02-01-2012 at 10:56:15 PM

I can change voltage and timings on mobo. I tried memtest on the sticks and it gets tons of errors on both 1.65v and 1.5v with right timings.

Reply to bret
Nikorr   02-02-2012 at 02:06:14 AM

This topic has been closed by Nikorr

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