RAM TYPES

HI

I have a few RAM chips with me - however i am confused to which type it belongs to in-case i want to replace or increase RAM size. I am aware that go by DDR 1,2,3 or 4 so can  you please find out what group these RAM chips below to:

1. WT101A PC333  256MB
D63264D2E25U3208TGAL

2. B402-INT M7221897 32MB

3. WT629A PC333 256
D63264D2E25U3208TGAL

4.MW32MB FC100

tx
shaunwinginAsked:
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Contigo1Commented:
Hi,

Do you know the make and model of the RAM?

If so you can probably find it on the Crucial Memory website:

http://www.crucial.com/uk/promo/index.aspx?prog=UKLP_RADIO&cpe=pd_msn_uk
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Lior KarasentiCommented:
Number 1 and 3 belong to DDR-1 group (PC333)

Number 2 and 4 doesn't looks like RAM models
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Gary CaseRetiredCommented:
Each of the module types have the keys (slots) located at slightly different points.
Older SDRAM modules have two slots.   All of the DDR modules have a single slot, but it's located at a different position depending on whether it's DDR, DDR2, or DDR3.

This shows a comparison of an SDRAM module with a DDR module:

SDRAM vs DDR
... and this shows the slot locations of the 3 different types of DDR modules:

DDR1-2-3 slots
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_Commented:
What systems are number 2 and 4 in?
They look like they are 32MB sticks, which would make them either PC-100, or maybe PC-133, SDRAMS. Check them against gary's first pic to verify.

If that is the case, you are going to have fun replacing or upgrading them.
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nobusCommented:
post pc model, or motherboard models they are used on
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_Commented:
Thank you much.    : )
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