if i add a 2gb strip will the total be seen as 5gb

fireberd said:

Here is the memory configuration from the Inspiron 531 manual.

thanks very much for diagram.

i will do that. today i received a Kingston ddr2 for tower pc but it wont fit,b is that cause of the pin numbers?. its the right form

thanks

can anyone tell me pls how to get the correct one. what info must i provide to get the notch in right place. not have any luck researching this onthe web


speccy says i have ddr2 but below is the spec of the one [also ddr2] i purchased which will not fit. any ideas?



Kingston KVR667D2D8F5/2G 2GB PC2-5300 DDR2 667MHz RAM Memory

Brand:
Kingston
Bus Speed:
PC2-5300 (DDR2-667)
Type:
DDR2 SDRAM
Total Capacity:
2GB
MPN:
KVR667D2D8F5/2G
Number of Modules:
1
Form Factor:
DIMM 240-pin
Capacity per Module:
2GB





thanx

iko22 said:

You firstly need to open out the side clamps fully (on the motherboard). Then you rotate the DIMM sticks so they are facing the right way. If you get this wrong, you need to rotate the DIMM sticks 180 degrees so that they are facing the opposite way. Once you have aligned the sticks, then you press down so that you apply force evenly. The side clamps should contract fractionally. Press the side clamps into the DIMM sticks to test that they have been inserted fully.

Here is a video for a visual explanation: How to install RAM Memory in your Computer - YouTube

did i give the impression that i was having trouble with straightforward fitting of the items?. the key notches are in different places, this is the problem . below are the 2 items concerned, i need to know what part of the spec indicates the position of the notches. thanx



Memory Module Specifications
KVR800D2N5/1G
1GB 128M x 64-Bit DDR2-800
CL5 240-Pin DIMM

Memory Module Specifications
KVR667D2D8F5/2G
2GB 256M x 72-Bit PC2-5300
CL5 ECC 240-Pin FBDIMM

The JEDEC DIMM specification gives the physical specification. Both your sticks are 240 pin DIMMs and therefore should fit a DDR2 slot on the motherboard. Basically if the memory sticks are the same width, then they should fit the same DDR slot. If you still are having problems then I will be thinking that the memory sticks are being inserted the wrong way round.

However FBDIMM has notch in different place compared to DIMM module. A FBDIMM (Fully buffered DIMM) will not work in a motherboard meant for registered DIMM. If you have both then they are not matched.

solved now the idiots forgot to say it was from a server, its been a lot of work solving this , thanks every one who assisted. kingston eventually called me back

I suggest to buy DDR2 800 (PC6400). Even if the MB only work with lower clocks, the DDR2 800 will also work with a lower clock and with better timings (CAS etc).