reconfigure motherboard P4VXASD2+ from 100mhz to 133mhz

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Douglas J

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Nov 26, 2013
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Motherboard P4VXASD2+ running unix software p4 2.8gb 1GB 2X512MB PC133 133MHZ SDRAM 168PIN MEMORY RAM Non-ECC NEW Memory RAM looking to change for speed 100mhz to 133mhz what are the adjustments to the mother board also changing memory from ddr 1mg 163pin to the above.
please advise
 
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Do you want to change the memory clock from 100 to 133 MHz? There's no such thing as 163-pin memory modules; that motherboard supports 168-pin SDRAM modules and 184-pin DDR modules. In what slots are the old modules installed (DDR1 and DDR2 or DIMM1 and DIMM2)? When changing the type of modules, you have to set jumper JP1 accordingly (2.5v or 3v), J2A, J2B, J2C, J2D, J3A, J3B, J3C, J3D (the manual says J4D, but that's incorrect). There are jumpers to set the processor to 100 or 133 MHz, but memory speed can be set in the BIOS (refer to page 27 of the manual).
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GhislainG

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Jul 16, 2008
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Do you want to change the memory clock from 100 to 133 MHz? There's no such thing as 163-pin memory modules; that motherboard supports 168-pin SDRAM modules and 184-pin DDR modules. In what slots are the old modules installed (DDR1 and DDR2 or DIMM1 and DIMM2)? When changing the type of modules, you have to set jumper JP1 accordingly (2.5v or 3v), J2A, J2B, J2C, J2D, J3A, J3B, J3C, J3D (the manual says J4D, but that's incorrect). There are jumpers to set the processor to 100 or 133 MHz, but memory speed can be set in the BIOS (refer to page 27 of the manual).
 
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Douglas J

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Nov 26, 2013
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Looking to get the most out of the machine page 16 it refers to 164 pin & 168 pin I have 2 motherboards one with memory of 1gb for ddr1 ddr2 and one with 1gb for dimm1 dimm2 this runs a plasma cutter and I was looking for the most speed its running at 100mhz so go to 133mhz will help what about the memory which will be the best 1 board is for backup both have p4 2.8gig processor and boards are both v-5 the OS is UNIX.

Please advise
Doug
 
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GhislainG

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Jul 16, 2008
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Page 16 refers to 184 (DDR) and 168 (SDRAM) modules. I'll presume memory is configured in the BIOS to use SPD settings; therefore the modules probably are 100MHz; otherwise they would run at 133MHz. To determine their speed, did you check at POST or run Memtest? To be sure the modules can run at 133MHz, you'll have to remove them to check the part numbers. Getting new 133MHz modules will not significantly improve performance. Out of curiosity why are such old systems still in production? What 2.8GHz P4 processor is installed (you should be able to see that info in the BIOS)?
 
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Douglas J

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Nov 26, 2013
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To update newer machine & software it runs $8500.00 to $11000.00 when all is done so everything works fine just trying to get most out of what I have. The memory I have for the DDR is NT512d6458HB1G-6K 12MB DDR-333MHZ-CL2.5
PC 2700U-25330 0449.JM904C0303B.A41427-1.C9.IT I have two sticks. I also have two sticks of the DIMM 512MB PC133 SDRAM in converting from 100mhz to 133mhz to operate a plasma cutter with lots of graphics which memory would do the best job.(Thank you for your input)

Please advice

Doug
 
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GhislainG

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Jul 16, 2008
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NT512d6458HB1G-6K could run at 166MHz (DDR1 is double rate: 2x166.7MHz=333MHz), but the PC is limited to a 133MHz clock and I don't believe you can increase the frequency in the BIOS (though it costs nothing to check if manual settings would allow a faster clock). At the same clock speed, DDR1 is faster because it runs at twice the frequency, but you may not see a significant difference. Since you have both systems, you should be able to determine if DDR1 improves your application's performance.
 
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