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DDR2 Voltage

post #1 of 3
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Let's say: I've slightly increased voltage to CPU and Chipset (because the FSB is overclocked to 1066MHz), but do I also have to increase voltage to RAM since I'm not planing to overclock it (maybe change timings but nobody told me yet if that requires increased voltage). Please help me with this, it is my first OC and I don't want to fry such an expensive equipment.
Thanks!
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post #2 of 3
Nice, (266x15) 3.99ghz.

Anyhow, your RAM should be set to either 3:4 or 2:3 ratio and a 2.1v or 2.2v. Timings? Are they at: 4-4-4-8 or 4-4-4-12 which usually is the common for those ratios.

Have you tried 3:5 with 4-4-4-12 and 2.2Vdimm?

You're not going to fry anything, I've fiddled with mine for several occasions and the worst I've gotten is the BIOS got screwed up but nothing that a floppy disk and drive can fix. Although after BIOS v0606 that hasn't happened.

***Edit***

From your other thread:

Quote:
Originally Posted by materti
Ok, how do I get 1:1 ratio between OCed mobo which runs at 1066 (266) Mhz, and I have 667 (333) MHz DDR2 RAM. Clearly, 266:333 is not 1:1, so do I downclock the RAM to 533 (266) MHz (is such thing possible at all?) or what do I do? Just tell what to tweak out in BIOS...
RAM as fallows:
DDR2 400 = 200mhz
DDR2 533 = 266mhz
DDR2 667 = 333mhz

RATIOs @ stock speeds.
200:200 = 1:1
200:266 = 3:4
200:333 = 3:5

200:400 = 1:2 just like my system runs at......anyhow

A 1:1 ratio is not good, best are 3:5 and then 3:4 and in some cases 2:3.

So, if you're doing 266fsb then:

CPUfsb 266: RAM should be: 443mhz for a 3:5 ratio or 354mhz for a 3:4 ratio. I would definitely recommend the 3:5 with a 2.2v
post #3 of 3
Ok ? I'm at 307 FSB with same ram 667 Now to get higher fsb I would want 1:1 right?
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