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What is better? Single Sided vs. Double Sided DIMM?

By wtkaic ·
Hi out there,

I am into fixing an old PC to give it to a friend (Fujitsu-Siemens, PIII, ATX, D1107)and I am about to buy a 256MB-(168pin,PC133, CL3).
Could anyone pls tell me what is better a single sided DIMM or a double sided?

Thanks

Callie

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by dryflies In reply to What is better? Single Si ...

DIMM is Dual inl;ine memory module with the dual meaning both sides of the DIMM have chips. I know, some of them only have chips on one side but that is because higher densities are making that viable. there is really no difference, get either.

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by dryflies In reply to What is better? Single Si ...

DIMM is Dual inl;ine memory module with the dual meaning both sides of the DIMM have chips. I know, some of them only have chips on one side but that is because higher densities are making that viable. there is really no difference, get either.

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by wmr02 In reply to What is better? Single Si ...

From personal experinece, as long as the module is of the right type physical other characteristics (such as wether chips are on one side ot on both sides) will only be a factor in actually fitting the module into the computer. I have had cases where a DIMM with chips on both sides was too thick to sit properly in to the case.

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by softcorp.us In reply to What is better? Single Si ...

Hello Callie,

As the others have said here, there is nothing inherently better about chips being on one side vs. both sides.

That said, not all DIMMs that appear to have the same specs are alike. Many PCs using PC133 RAM cannot use DIMMs that are made using "high density" chips. For those PCs, the DIMMs must be made using "lower density" chips. And, in order to get the large DIMM sizes that people want these days (256MB in one DIMM was huge when your PC was made), there must be so many "low density" chips that they must be physically arranged on both sides of the DIMM in order to physically fit.

Recommendation: Go to crucial.com and buy your memory there. They have a nice system that determines the correct memory for your PC. And, they guarantee compatibility.

Disclosure: I have no relationship with Crucial :-).

-----Steve Jackson

CEO/CSA
Software Corporation (Softcorp)
http://www.softcorp.us/probono
Advanced pro bono tools and utilities free for personal use

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by softcorp.us In reply to

Be sure to rate the answers you receive and close your question when you're done. Thanks.

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by willcomp In reply to What is better? Single Si ...

Most PIII mobos require low density RAM. Some will work only with single density and some accept double density. There are no single density 256MB modules that I know of (would take 32 chips). A double density 256MB module will have 16 chips and be double sided.

Single sided 256MB modules are quad (high) density.

What is you chipset? If it is Intel 440BX, 810 or 815, then low density is only option.

Advice to use Crucial's selector is sound.

You may be able to find used memory at a considerable savings. I'm seeing quite a bit of PC100 and PC133 RAM on the used market. Most is either single or double density.

Dalton

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