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A couple Pentium D questions - Page 4

post #31 of 62
Quote:
Originally Posted by cowboyzkickazz
wow paul nice how did you pull 3-3-3-6 timings? I'm trying to do 4-4-4-12 with my ocz gold ddr2 - 800 at 2.1v and not getting anywhere. Stuck at 5-5-5-10
Change you memory to 1:1 will FSB, bring Mem to 2.3V, and you should be able to bring it down to 3-3-3-8.
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post #32 of 62
thanks paul i'll try that

It worked paul, actually I only up'd my volts to 2.15 I found out that my ratio was off it was 3:4 not 1:1 thanks
    
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post #33 of 62
I just thought I would ask, I have an ASUS P5LD2 motherboard with the BIOS version 1003, how do I change the ratio of FSB : DRAM? I want to try and change my ratio of 4:5 (default) to 1:1 and I am not sure where in my bios to do that and I have been reading the manual to my motherboard and am not sure.
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post #34 of 62
Quote:
Originally Posted by CanisSilvermoon
I just thought I would ask, I have an ASUS P5LD2 motherboard with the BIOS version 1003, how do I change the ratio of FSB : DRAM? I want to try and change my ratio of 4:5 (default) to 1:1 and I am not sure where in my bios to do that and I have been reading the manual to my motherboard and am not sure.
Although I have never worked with your motherboard, I expect the BIOS interface to be similiar to my ASUS board. Go to the Advanced Menu, to something called JumperFree Configuration. Set the overclocking to manual. You should see a option for your RAM speed. Set your RAM speed to 2x your FSB.
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post #35 of 62
hey paul another question, do you hink i can run these tight timing on like 4:5 or 2:3? or something besides 1:1?
    
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post #36 of 62
Quote:
Originally Posted by cowboyzkickazz
hey paul another question, do you hink i can run these tight timing on like 4:5 or 2:3? or something besides 1:1?
1:1 is the optimal ratio. You lose performance because the CPU is not sychranized to the RAM at other frequencies. The tightest timings you can get on 1:1 is the best. Go for 3-3-3-6 with 1:1 or even 3-3-3-4 1:1 like mine.

There is no reason to run it out of 1:1.
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post #37 of 62
ok thanks again
    
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post #38 of 62
Quote:
Originally Posted by pauldovi
1:1 is the optimal ratio. You lose performance because the CPU is not sychranized to the RAM at other frequencies. The tightest timings you can get on 1:1 is the best. Go for 3-3-3-6 with 1:1 or even 3-3-3-4 1:1 like mine.

There is no reason to run it out of 1:1.
Umm, no. You don't want to run your memory 1:1 when you use DDR2 memory, that defeats the purpose of the extra bandwith of DDR2 vs DDR1. A 4:5 devider should be the slowest you run your memory.


Run SuperPI again with the highest devider you can reach, like 3:5, and test that against 1:1 with the same CPU clock speeds, and see what's better. (since SuperPI is 50% CPU, and 50% memory)
    
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post #39 of 62
Quote:
Originally Posted by wowza
Umm, no. You don't want to run your memory 1:1 when you use DDR2 memory, that defeats the purpose of the extra bandwith of DDR2 vs DDR1. A 4:5 devider should be the slowest you run your memory.


Run SuperPI again with the highest devider you can reach, like 3:5, and test that against 1:1 with the same CPU clock speeds, and see what's better. (since SuperPI is 50% CPU, and 50% memory)
http://www.overclock.net/intel-cpus/...ing-guide.html

Quote:
Originally Posted by NoAffinity
4) On Intel systems, best performance is achieved through highest possible stable operation in synchronous (1:1) CPU:RAM operation. The higher the FSB in 1:1, the better performance. The only exception may be if you have severely limiting RAM and a CPU that is an excellent overclocker. That is up to you to determine, tho. Does a 5:4 divider at a super high CPU clock offer better performance than half the FSB in 1:1? Well then, stick with 5:4. At the same time, running RAM faster than the CPU offers absolutely no performance gains (the CPU is doing the processing, RAM merely receives data as it is fed to it...). I don’t know why motherboard manufacturers even offer dividers to run RAM faster than the CPU, but they do. So, please, for my sake, don’t go setting your CPU bus speed to 133 mhz and DRAM frequency to 200 mhz (or 400 mhz, depending on how your BIOS lists it).
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post #40 of 62
edit; nvm i'm just gonna leave it at what its at maybe try to tighten the 8 to 4
    
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