View source for PC-133

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=== PC133 ===
This is SDRAM at 133 MHz in a 144-pin SO-DIMM form-factor.
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[[image:so-dimm.jpg|SO-DIMM]]
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=== Available DRAM modules from IBM ===
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|'''SDR type'''
|'''Option Part Number<br>(OPT)'''
|'''Field Replacement Unit<br>(FRU)'''
|-
|Non-ECC, unbuffered 1Rx8 64MB PC133 CL3
|19K4650
|19K4651
|-
|Non-ECC, unbuffered 1Rx8 128MB PC133 CL3
|19K4652
|19K4653
|-
|Non-ECC, unbuffered 1Rx8 256MB PC133 CL3
|19K4654
|19K4655
|-
|Non-ECC, unbuffered 2Rx8 512MB PC133 CL3
|19K4656
|19K4657
|}

=== Models that support this technology ===
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! Models !! Soldered<br>on motherboard !! SO-DIMM<br>Slot 1 !! SO-DIMM<br>Slot 2 !! Official<br>Max-Memory !! [[Unofficial maximum memory specs|Unofficial<br>Max-Memory]]
|-
| {{A30}}, {{A30p}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
|-
| {{T23}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
|-
| {{X30}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
|-
| {{X22}}, {{X23}}, {{X24}} || 128MB || Depends || N/A || 640MB{{footnote|2}} || 640MB{{footnote|2}}
|-
| {{R30}}{{footnote|3}}, {{R31}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
|}
{{footnotes|
#Attained via two 2Rx8 512MB PC133 non-ECC SO-UDIMMs, not possible with 1Rx8 512MB PC133 non-ECC SO-UDIMMs. Irrelevant uninteresting fun fact: 1GB PC133 SO-DIMMs exist, but they're generally ECC and registered/buffered. Sometimes, they come in 4Rx8 or 2Rx8 configurations, which may not be supported by the memory controllers used in normal laptops.
#Attained via one 2Rx8 512MB PC133 non-ECC SO-UDIMMs, not possible with 1Rx8 512MB PC133 non-ECC SO-UDIMMs.
#Comes with factory-installed PC133 SDRAM for some reason, but the memory controller is limited to PC100 speeds.
}}

== Available DRAM modules from other companies ==
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! Manufacturer !! Partnumber !! Description !! Tested on model
|-
| TBD || TBD || TBD || TBD
|}

[[Category:DRAM]]