Memory Frequency

T4x series specific matters only
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gunston
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Memory Frequency

#1 Post by gunston » Thu Jun 08, 2006 11:44 pm

hi,
i have just upgrade a new memory slot,
and found out the memory frequency 266mhz. Should it be 400mhz for T43, shouldn't it?
http://img224.imageshack.us/my.php?image=sdram7yn.jpg
1. T43 2668-B97 14" SXGA+ 1.5G RAM 9cells
2. X60s 1703-CA3 powerful

JHaislet
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#2 Post by JHaislet » Fri Jun 09, 2006 12:45 am

Actually it should be at 533mhz since it's DDR2.
What is 266mhz x2? ;)

Physical speed & apparent operating speed are different for DDR2.
Vista Business on T43 w/ Dell 2405FPW @ 1920 x 1200
Thinkpad T43 (2687-DSU) | PM 2.0GHz @ 1.068v | 100GB Hitachi 7K100 | 2.0GB Dual-Channel | X300 64MB | 14.1" SXGA | DVD+RW | Intel 2915 ABG | ThinkDock II & Mini-Dock |

gunston
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#3 Post by gunston » Fri Jun 09, 2006 1:22 am

yeah, i just wonder whether my friend had been cheated with this, the vendor said that this is a DDR2 ram, but the frequency that shown in the picture is actually 266mhz.
1. T43 2668-B97 14" SXGA+ 1.5G RAM 9cells
2. X60s 1703-CA3 powerful

Bgradid
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#4 Post by Bgradid » Fri Jun 09, 2006 1:30 am

No, the ram is working perfectly.
T42p 14" SXGA+/1.8/2gB/60gB-7200rpm
T23 14" SXGA+/1ghz/512/40gB
560,560x,560z

gunston
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#5 Post by gunston » Fri Jun 09, 2006 1:46 am

yeah, i know the RAM is working perfectly,
but it looks like it is not running as the clock speed that DDR2 suppose to be.
1. T43 2668-B97 14" SXGA+ 1.5G RAM 9cells
2. X60s 1703-CA3 powerful

JHaislet
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#6 Post by JHaislet » Fri Jun 09, 2006 2:09 am

Once again, What is 266mhz x2 ????? (answer is 533mhz) ;)

DDR2 runs at an OPERATING FREQUENCY of 266mhz, but an EFFECTIVE FREQUENCY of 533mhz.

I'm not sure if I can state this any clearer...maybe you should google DDR2 and read up on how this stuff actually works.
Vista Business on T43 w/ Dell 2405FPW @ 1920 x 1200
Thinkpad T43 (2687-DSU) | PM 2.0GHz @ 1.068v | 100GB Hitachi 7K100 | 2.0GB Dual-Channel | X300 64MB | 14.1" SXGA | DVD+RW | Intel 2915 ABG | ThinkDock II & Mini-Dock |

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