I'm reading through the Core 2 Overclocking guide very carefully as this is all brand new to me. I've been through it a number of times and one thing just doesnt click for me with the memory portion.I will have a AsusP5BDeluxe but I want to understand the timing issue mentioned on the bottem here regarding setting Timing: 5-5-5-15 vDIMM: 2.2V when 1FSB:1RAM is overclocked above the rated frequency. I'm missing something that helps me recognize when exactly this is the case. Could someone please clarify this? I'm deciding between Corsair ddr2-675 or ddr2-800, both with 4-4-4-12 timing. Would either of these be cases to switch the timing to 5-5-5-15 based on what the guide is advising? I'm somehow missing the connection with the example at the bottem of when to do so. I'm simply trying to clearly see what connection I'm missing with the concept of 1FSB:1RAM. And finally, which is a better choice of memory(the ddr2-800 is $70 more) in this instance including cost factor(it's for a 6400 or 6600)? Thanks in advance
Parts From Guide:
ASUS: Set ‘DRAM Frequency’ to DDR2-533 @266Mhz FSB (1FSB:1RAM operation)
As you increase the FSB, the RAM will follow in the pattern of 1:1 shown in BIOS.
1. Set ‘DRAM Timing’ to manual or disable SPD (use SPD for P5W DH)
2. In BIOS you will see 4 separate timing digits, change them to the ones specified on your RAM
When 1FSB:1RAM is overclocked above the rated frequency of your RAM use the following values
Timing: 5-5-5-15
vDIMM: 2.2V
e.g. DDR2-667 4-4-4-12 1.9V operating at ~400Mhz will need to be set to 5-5-5-15 2.2V
Parts From Guide:
ASUS: Set ‘DRAM Frequency’ to DDR2-533 @266Mhz FSB (1FSB:1RAM operation)
As you increase the FSB, the RAM will follow in the pattern of 1:1 shown in BIOS.
1. Set ‘DRAM Timing’ to manual or disable SPD (use SPD for P5W DH)
2. In BIOS you will see 4 separate timing digits, change them to the ones specified on your RAM
When 1FSB:1RAM is overclocked above the rated frequency of your RAM use the following values
Timing: 5-5-5-15
vDIMM: 2.2V
e.g. DDR2-667 4-4-4-12 1.9V operating at ~400Mhz will need to be set to 5-5-5-15 2.2V