imdaman6909

When i overclock, do i have to play with the 'memory clock ' as well as the FSB? Do i heighten or lower MEM Clock for higher speeds? My MEM is 3 gigs of DDR2 667.

Thanks for your help,
Mike

Rick Arter

In general raising memory speeds will give you better performance. This is the trickiest type of OCing IMO.

The timings are the most difficult part most stick with the first 4 of them. The sub timings can give or take performance real quick, while some do hardly anything. It is a line between stability and performance mostly. Since you have 667 RAM I assume its lower end generic type modules. These tend not to go as high as high end modules.

Start by raising the speed of memory by 5-10mhz depending on settings available. Test with memtest and then in windows with orthos or prime95 on blend for 6 hours at least.

You should start by manually setting everything to specs. Voltage to spec keep under 2.1-2.15v 24/7 with active cooling. Keep the RAM cool and it will OC better and live longer. Set first 4 timings now at 5-5-5-15 to start and OC it a bit to say 700mhz and test it. Some sticks don't respond to high overvolting so don't expect to gain a bunch after 2.1v.

My 675 Corsair modules hit 850MHz 5-5-5-15 stable at 2.06v. If you can reach 800mhz-850mhz on those I praise you its a nice OC if you have never OCed RAM before.

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