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How to set my DDR2 RAM for better performance?

Hi all

I have recently overclocked my system and currently i am running:

CPU : Core 2 Duo E 7400 @ 3.6Ghz(bus speed 400Mhz,multiplier x8.5)
Motherboard : Asus P5Q
PSU : Thermaltake Purepower RX Cable Management 600W
RAM : #1 KINGSTON KHX6400D2K2/ (2X2GB) PC6400 800MHZ HYPERX DUAL CHANNEL KIT
.........#2 Corsair 4GB DDR2 Ram Kit(2X2GB) (TWIN2X4096-6400C5 G)
GPU : Sapphire Radeon HD6870 1GB GDDR5
HDD : #1 WESTERN DIGITAL WD5000AADS 500GB SATA2
........#2 WESTERN DIGITAL WD5000AAKS 500GB SATA2 .

My questions are regarding the Ram modules that i have.My FSB : DRAM is 1:1 but i'm not familiar with the timing and the latency.
The modules are running as show in the screen shot.These are the deafult settings i didn't change anything.

My questions is if i am running the modules properly and optimized for my sytem,and if not what changes should i make.
What do you suggest?
Sorry for my english.

Thanks in advance.
8 answers Last reply Best Answer
More about ddr2 performance
  1. Your RAM is set at a 1:1 ratio with the FSB making it run at it's full speed of 800Mhz. I would not try to overclock the RAM as it's not a matched set.

    I think you are at 3.4Ghz? 400 * 8.5 = 3.4

    The RAM is fine where it is. Core2 chips do best with a 1:1 RAM/FSB ratio.
  2. Your RAM has different latencies - it looks like you have the latencies set to AUTO; the Memory tab shows 5-5-5-15, even though you Kingston RAM is 6-6-6-18. Your system is OCing the Kingston RAM, and that can cause instability and BSODs. Check your BIOS RAM screen and set your latencies to 6-6-6-18, which are the settings of the weaker RAM.
  3. anort3 said:
    Your RAM is set at a 1:1 ratio with the FSB making it run at it's full speed of 800Mhz. I would not try to overclock the RAM as it's not a matched set.

    I think you are at 3.4Ghz? 400 * 8.5 = 3.4

    The RAM is fine where it is. Core2 chips do best with a 1:1 RAM/FSB ratio.


    You are right i'm running it @ 3.4Ghz. 3.6Ghz was my previous settings but got back to 3.4 due to instability problems and because i didn't wan't to get pass Intel's maximun recommended voltage (1.3625V).
  4. treefrog07 said:
    Your RAM has different latencies - it looks like you have the latencies set to AUTO; the Memory tab shows 5-5-5-15, even though you Kingston RAM is 6-6-6-18. Your system is OCing the Kingston RAM, and that can cause instability and BSODs. Check your BIOS RAM screen and set your latencies to 6-6-6-18, which are the settings of the weaker RAM.

    Thanks for the advice i'll try that first thing in the morning.
  5. alix78 said:
    Thanks for the advice i'll try that first thing in the morning.

    You're welcome.
  6. Best answer
    If your computer is stable I would leave the RAM alone. 5-5-5-15 is not much of an overclock from 6-6-6-18. The JDEC standard for DDR2 800 is 5-5-5-15. If it passes a Prime 95 test for 6 to 8 hours there is nothing to worry about.
  7. Thanks for the tips guys i''l give it all a try.
  8. Best answer selected by alix78.
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