Best OC settings???

Xfx79u / Xfx nforce 790i ultra 3-w...
April 8, 2009 at 04:00:26
Specs: Microsoft Windows Vista Ultimate, 2.625 GHz / 4093 MB
Hi there, i wanna get the most out of my computer since i spent so much on it.
i just got sum new ram, Corsair TW3X2G2000C9DFNV, it has sli support and is ment to operate at 2000MHz at latencies of
9-9-9-24 at 1.90V.
also i have a intel quad core 2 Q9300 2.5ghz and a xfx 790i ultra mobo with a xfx 9800gtx black edition graphics card.
everything has sli support including the psu so i heard its ment to perform harder?
now can sumone plz help me here with sum numbers and voltages, i no nothin bout what im doing???
cheers for any help

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April 8, 2009 at 05:05:32
For graphics, SLi is the technology for pairing up two nVidia based video cards to theoretically double the performance. It rarely works out that way though.

An SLi power supply just means that it's capable of handing the power requirements of two video cards & has the necessary PCI-e power connections for the two cards.

SLi RAM has nothing to do with SLi at really should be called EPP. I've seen it described as either Enhanced Profile Protocol or Enhanced Performance Profiles, not sure which is correct. But basically it refers to additional performance memory settings programmed into the EEPROM chip on the memory module, along side the standard JEDEC memory settings. If the motherboard supports EPP, you can enable it & use the settings, otherwise you have to manually configure the RAM settings (which IMO is what you should do anyway). Basically, EPP makes it easier for people who aren't familiar with configuring their RAM.

Your RAM is probably beyond what is actually necessary for your CPU, unless you plan on overclocking. The Q9300 runs at 1333MHz FSB (333MHz frequency), your RAM runs at either 1333MHz DDR (667MHz freq)/JEDEC or 2000MHz DDR (1000MHz freq)/EPP. That means that with the CPU running at default & the RAM running the JEDEC settings, the CPU:DRAM ratio is 1:2, which is ideal.

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April 14, 2009 at 01:30:26
why is it that when i put the FSB up to 1600 i have heaps of issues tryin to start the computer, it seems to run fine atm at 1500 FSB but my mobo says it can support 1600FSB so why cant i use it??? does it require voltages changes. i want 3.0Ghz and i just cant quite reach it

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April 27, 2009 at 04:55:55
"does it require voltages changes"

Yes, you have to increase the CPU voltage. Are you new to overclocking?

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