- Feb 23, 2007
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I've got my E6600 and my P5B-E Plus mboard with 4 * 1GB Corsair PC2-6400 RAM (CM2X1024-6400C4).
Just trying to work out my settings for OC.
Corsair says:
Tested at EPP SPD settings (4-4-4-12) at 2.1V
SPD programmed at:
JEDEC standard 5-5-5-18 values at 800MHz
EPP standard 4-4-4-12-2T, 2.1V values at800MHz
Why are there two sets of timings, 5-5-5-18 and 4-4-4-12-2T?
The ram will also do 5-5-5-15 with 2.2V and DDR2-1066 (according to Corsair) - http://www.xbitlabs.com/articles/memory/print/ddr2-800.html
So my RAM is definitely good up to 2.2V and 533MHZ.
At the moment I've got my FSB at 320MHz, my ram's at 4-4-4-12@2.1v, and it's stable after 20 hours of Orthos.
I've set the RAM divider to 5:4, so the RAM's running at its rated DDR2-800 speed. Is this a good idea? What is the purpose of RAM dividers. It seems like it makes the RAM faster than FSB, so essentially you need higher quality RAM, but I guess it might make the PC faster as the RAM is running at a higher frequency. Do RAM dividers aid in boosting overall CPU clockspeed at all? Or is it just to get a bit higher performance by driving the RAM faster?
In boosting my OC, what should I fiddle with? I don't want to push things too hard, no point in stressing things in getting an extra 100MHz of CPU.
I guess put RAM timings to 5-5-5-15, RAM volts to 2.2, and then tighten the timings when I get a stable OC. Should I use RAM dividers?
Obviously FSB is the main thing, but how about the other voltages?
I can fiddle with:
CPU Vcore - what's a conservative setting for this?
FSB termination voltage ???
Northbirdge VCore
Southbridge Vcore
ICH Chipset Voltage
Just trying to work out my settings for OC.
Corsair says:
Tested at EPP SPD settings (4-4-4-12) at 2.1V
SPD programmed at:
JEDEC standard 5-5-5-18 values at 800MHz
EPP standard 4-4-4-12-2T, 2.1V values at800MHz
Why are there two sets of timings, 5-5-5-18 and 4-4-4-12-2T?
The ram will also do 5-5-5-15 with 2.2V and DDR2-1066 (according to Corsair) - http://www.xbitlabs.com/articles/memory/print/ddr2-800.html
So my RAM is definitely good up to 2.2V and 533MHZ.
At the moment I've got my FSB at 320MHz, my ram's at 4-4-4-12@2.1v, and it's stable after 20 hours of Orthos.
I've set the RAM divider to 5:4, so the RAM's running at its rated DDR2-800 speed. Is this a good idea? What is the purpose of RAM dividers. It seems like it makes the RAM faster than FSB, so essentially you need higher quality RAM, but I guess it might make the PC faster as the RAM is running at a higher frequency. Do RAM dividers aid in boosting overall CPU clockspeed at all? Or is it just to get a bit higher performance by driving the RAM faster?
In boosting my OC, what should I fiddle with? I don't want to push things too hard, no point in stressing things in getting an extra 100MHz of CPU.
I guess put RAM timings to 5-5-5-15, RAM volts to 2.2, and then tighten the timings when I get a stable OC. Should I use RAM dividers?
Obviously FSB is the main thing, but how about the other voltages?
I can fiddle with:
CPU Vcore - what's a conservative setting for this?
FSB termination voltage ???
Northbirdge VCore
Southbridge Vcore
ICH Chipset Voltage