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What type of memory

By techless ·
I have a P266 (new 10/9 and a P2-400 (new 7/99) that both have 64 mb of memory. I wish to add more memory. They both have open slots on the mother board.
How do I know what kind of memory to buy?

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What type of memory

by MCiha In reply to What type of memory

Check out the site <www.crucial.com>.
They have a configuration tool there that seems to list EVERY machine made. (Obviously this is an exageration.)
But the list is VERY extensive. And if it isn't there, their tech support folks can help.
My machine wasn't listed, I e-mailed them what I knew about my machine (Brand, model, processor, etc) and they told me what it needed.

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What type of memory

by techless In reply to What type of memory

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What type of memory

by CWRobin6971 In reply to What type of memory

Most likely both systems are using DIMMs but just to be sure here is what to look for:

A DIMM slot has 168 pin connection points and is, therefore, much longer than the older SIMM memory type.

A SIMM module only has a single indentation in itsedge for allignment during insertion while a DIMM has 2 indentations for allignment. The slots on your motherboard(s) should have corresponding outcroppings in the center of the slot to correspond to this.

SIMM modules are usually inserted initially at an angle and then pushed forward in to the clips that hold them in place. A DIMM module is inserted straight in to the slot while restraining clips on either edge of the DIMM will snap in to place on indentations on the edge of the chips. If you see clips that seem to be spring loaded or flexible you most likely have SIMM slots but if you see slots that have little (sometimes loose feeling) clips that may look and feel like a toggle switch.

As far as memory types are concerned then you need to know the following:

SIMMs can either come in 30 or 72 pin configurations (72 is much more common in your timeframe) and you have the possibility of EDO memory types as well as speed considerations... Try to contact the manufacturer ora web site find the details.

DIMMs are still only one real type (until the DDR RAM hits) so as long as you get PC-100 or PC-133 RAM you should be fine.

Finally, be more concerned with the type of memory slot than anything at this point and buywhat is appropriate.

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What type of memory

by techless In reply to What type of memory

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What type of memory

by Lo In reply to What type of memory

Hi - If you have manuals for your MB it should tell you what kind and what mix/match will work (if possible). If suggestions above don't yield a solution try:
1) take the memory out (may be able to read while inserted, easier if you remove. It myeither have mfg part, name, etc. Write down and check on Internet or take to a store (Fry's Elect, CompUSA, etc.) They may be able to recognize or lookup.
2) take the memory out and take to store. They can probably indicate compatible chip.

lo

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What type of memory

by techless In reply to What type of memory

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What type of memory

by rthoma10 In reply to What type of memory

p 266 72 pin sims at least 32 mb/ on your p2 select the same pc 66/100 168 pin dim 128mb is good remember your computer will run as fast as the slowest piece of gear installed if you want more information e-mail me at rthoma10@san.rr.com

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What type of memory

by techless In reply to What type of memory

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What type of memory

by gshollingsworth In reply to What type of memory

Just wanted to mention that some motherboards do not some combinations of memory types. ie. Fast-paged & EDO, even though each type is supported individually. This applies mostly to SIMM memory. I have also seen MB's with both SIMM and DIMM slots that did not allow the use of both slot types simultaneously. One more thing, earlier SIMM MB's required pairs or banks for slots to be filled. Try a general web search for fast-paged RAM, I ran across a site that listed the history of RAM and had advice you could use. Sorry I cannot find the link to taht site or remember the name.

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