Safe Voltage for memory

[FIRESTARR357]

I'm using ddr1600 and i wanna oc it what would be a some what safe voltage i'm using a Epox 8KHA+ thx

[Dissolved]

Originally posted by FIRESTARR357
I'm using ddr1600 and i wanna oc it what would be a some what safe voltage i'm using a Epox 8KHA+ thx

well the higher you oc it the higher voltage ull need... but pc1600 shouldnt take more then 2.7v u should hit 133 easy with 2.5~2.7v

[oc jason]

i use pc2400 and id not go over 2.9, even though the board will do 3.2, maybe 3.0 or more with ramsinks (which i got) but still dont wanna risk it

[Big Sando]

I am using Crucial PC2100 at 2.8V. It has been there or higher for 4 months now without any problems. The only time it goes higher is when I try to go over a FSB of 150MHz. My mobo goes up to 2.9V. With a voltage mod, I can get it up to around 3.3V, but I am not sure whether I want ot do that yet.

Good luck!

:)

[ZooomIT]

how do you really change the voltage and oc the memory...i have oem pc2100 256mb

[Big Sando]

It is really quite easy. On my mobo, the voltage is changed through the use of jumpers and the FSB speed is changed within the BIOS (in the Frequency / Voltage Control Menu). Most BIOS will have this menu or something very similar. On some mobo's both can be done from within the BIOS.

A rule of thumb for FSB / Voltage is as follows.

133MHz - 2.5V (or default)
145MHz - 2.7V (2.8V if stability issues)
155MHz - 2.9V
166+ - 3.0V

My mobo only goes to 2.9V, so if I want to hit 3V, I would have to do a voltage mod, which is something I am considering.

Without getting too crazy, you can increase you FSB about 2MHz at a time until it stops booting into windows. At that point up the voltage one notch and repeat. You might also want to run some benchmarking programs (such as 3DMark2001, SiSoft Sandra, and Prime 95) along the way to check stability.

Hope this helps

:)

[CrackedSKull]

Some people say you will kill your RAM if you leave it at 2.8v+ for a long period of time.
I get 150mhz CAS2 @2.7 just fine, but I did have it at 2.8 when I had 160mhz fsb for a little while.

A real wierd story: My ram seemed to be fried for about a 2 weeks, and then never had problem since, mid last month. It failed every memory test, and the computer would constatly restart randomly, almost sounds like a psu problem, but the same thing happen when I underclocked it. Then it worked fine, really bizare.

[Maximus Nickus]

My memory is at 170FSB @ Cas2 (its Crucial PC2100 memory) and its running @ 3.2V.

Its totally safe if you cool it, Memory cooling kits are rubbish (sometimes they trap heat) I have strapped a Delta blowing down through my memory and it stays at Room Temp @ 3.2V

Heat KILLS, NOT VOLTAGE.


My $0.02


Nick