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RAM Voltage

post #1 of 7
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What would you guys say is the high end of voltage for RAM with good heat spreaders? My tower has excelent cooling with a Full tower made of aluminum, 2 120mm fans, one in one out, and 3 80mm fans. I dont have any heat sensors for my RAM and dont want to ruin it, but I dont mind taking a risk.
post #2 of 7
You appear to have DDR (http://www.patriotmem.com/products/index.jsp?source=1) so I'd say you shouldn't go over 2.8V.
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post #3 of 7
it depends on what ICs are used in your RAM.
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post #4 of 7
Quote:
Originally Posted by soloz2
it depends on what ICs are used in your RAM.
What he said.
My sticks are BH-5 and warranted to 3.0v, but I've read of many people putting 3.2v+ threw them because they love voltage. Mine wont even boot at a voltage less than 2.8

You really need to find out what chips your ram uses, and what the manufacture warrants them to.

I checked for you, assuming its the same stuff, Patriot extreme performance 4800xbl is warranted up to 2.9v
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post #5 of 7
An easy way to tell what type of memory you have without removing the heatspreaders are by looking at the manufacturer's default speed/timings. In this case the Patriot eXtreme PC4800 DDR memory is rated to run at 600 MHz with 2.5-4-4-8 timings which indicate that they use Samsung TCCD memory. Only Samsung memory can run at such high speeds and to achieve that, timings have to be loosened.

Virtually no Winbond memory (at least not in large quantities without 3.6V+) can run 300 MHz and most do not react very well to such lax timings, I have a set of older BH5 which won't even boot if I tried those timings. Winbond based memory usually come in at the lower end of the speed scale and never have a rating than PC4000.

Psyleck seeing as how you use Samsung memory I wouldn't push the voltage past 2.8V, it doesn't like it in general.
Quote:
I checked for you, assuming its the same stuff, Patriot extreme performance 4800xbl is warranted up to 2.9v
Manufacturers can't tell how much voltage has gone through the memory if you RMA them.
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post #6 of 7
I believe it's TCCD and 2.9 seems to be a safe max... it does not seem to respond well to voltages above 3v.
Regardless of the chips, a pasive cooling solution is a good idea when ocing the RAM.
    
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post #7 of 7
if it's TCCD 2.9 is usually the max that they like. for default speeds you should give them about 2.7-2.75v

my OCZ platinum rev. 2 uses TCCD and is warrantied up to 3.0v
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