What if i get more ram

Xfx79u / Xfx nforce 790i ultra 3-w...
April 27, 2009 at 04:20:03
Specs: Microsoft Windows Vista Ultimate, 2.5 GHz / 2045 MB
Hi there, recently got 2gb of Corsair 2000mhz EPP 2.0 SLI (TW3X2G2000C9DFNV) and with everything i use i need more ram. now i know that adding more ram will not let me to use it at 2000mhz anymore due to the fact that it has to be in the black slots to get that speed (there are 4 slots 2 black 2 grey), so does that mean i can buy another 2gb set of ram that runs at a lower speed like 1600mhz and have all 4 sticks at around 1600mhz or do i have to waste my money on the same ram but have to run it lower??

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April 27, 2009 at 05:11:45
It would be better to have 2 x 2GB rather than 4 x 1GB plus you should be more concerned about running the optimal CPU:DRAM frequency ratio rather than trying to run the RAM as fast as you can. The two ratios that are considered optimal for an Intel system are 1:1 & 1:2.

If you run your CPU at it's deafult frequency of 333MHz (1333MHz FSB), you should run the RAM frequency at 333MHz (DDR667) for 1:1 ratio. For 1:2 ratio, the RAM should be run at 667MHz frequency (DDR1333).

To take full advantage of DDR2000, you'd have to overclock the CPU frequency from 333MHz (1333MHz FSB) to 500MHz (2000MHz FSB). That would require changes to several BIOS settings (multiplier, voltages, etc) to be able to pull it off, IF you're able to pull it off at all.

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