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DDR Vs HT Speed

post #1 of 9
Thread Starter 
just a Quick Question,
If the DDR Speed is equal or near to HT SPeed, what effect does it have, and hould it be less or greater than HT SPeed
at the moment i m running at,
2.5Ghz,
DDR/CPU RATIO 2/1.33
FSB 250
HT Multiplier x10
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post #2 of 9
Quote:
Originally Posted by ZJane
just a Quick Question,
If the DDR Speed is equal or near to HT SPeed, what effect does it have, and hould it be less or greater than HT SPeed
at the moment i m running at,
2.5Ghz,
DDR/CPU RATIO 2/1.33
FSB 250
HT Multiplier x10
DDR is the speed of your Ram and means Double Data Rate. This is double the rate of your FSB(HT). ie. on a 1:1 divider your Ram would be running at DDR500 (250*2).

You are currently running your Ram asyncronous with the HT rate, as you have set your divider to 2/1.33 (2/3rd) of 250Mhz which is 165Mhz. This figure should be as high as your memory can go.
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post #3 of 9
Thread Starter 
so i have 512 * 2 Dual Channel running at 128-bit now, so how far can i go with 2/2 and 2/1.33 ratio
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post #4 of 9
What is the default speed of the RAM, it's timings, and vdimm?
    
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post #5 of 9
I have found no diffrence between 800-1200fsb any where in between is good right now im going for highest overclock my ram and cpu can go. 240mhz is my max ram and 2650 cpu max im @236.5*2=473mhz ddr /--- cpu/289*9=2601mhz htx3=867x2=1734fsb. hope this helps.
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post #6 of 9
Thread Starter 
Quote:
Originally Posted by rcantec
I have found no diffrence between 800-1200fsb any where in between is good right now im going for highest overclock my ram and cpu can go. 240mhz is my max ram and 2650 cpu max im @236.5*2=473mhz ddr /--- cpu/289*9=2601mhz htx3=867x2=1734fsb. hope this helps.
where did this 867 Come from
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post #7 of 9
HT x3 = FSB x 3

in his scenario he has his FSB @ 289.......289 x 3 = 867
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post #8 of 9
Thread Starter 
man this is now confusing , if 289 is his FSB then whats this 236.5, ..........?
looks like i messed up everything i learned till now
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post #9 of 9
Quote:
Originally Posted by ZJane
man this is now confusing , if 289 is his FSB then whats this 236.5, ..........?
looks like i messed up everything i learned till now
His ram is running on a divider,which is lowering it to 236.5. Use this...

http://math.gogar.com/athlon64.cgi?showtable=1
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