Difference between revisions of "PC2700"

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(Available DRAM modules from Lenovo: corrected mistake)
 
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{{NOTE|As PC2700 is getting increasingly difficult to acquire, PC3200 can be used instead. Using PC3200 may or may not increase the performance of your model, as some models may underclock it to their respective original DRAM speeds.}}
 
=== PC2700 ===
 
=== PC2700 ===
This is DDR (Double Data Rate) memory in 200-pin SO-DIMM form-factor.<br>
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This is DDR SDRAM at 333 MT/s in a 200-pin SO-DIMM form-factor. DDR333 may also be interchangeably referred to as PC2700.
PC2700 memory is also called DDR333
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=== Available memory types from IBM or Lenovo ===
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=== Available DRAM modules from Lenovo ===
 
{| border=1 cellspacing=0 cellpadding=2
 
{| border=1 cellspacing=0 cellpadding=2
 
|- style="background:#ffdead;white-space:nowrap;"
 
|- style="background:#ffdead;white-space:nowrap;"
! Partnumber !! FRU !! Description
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|'''DDR type'''
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|'''Individual / Single-Pack<br>Option Marketing Part Number'''
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|'''25-Pack Option<br>Marketing Part Number'''
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|'''Field Replacement Unit<br>(FRU) Service Part Number'''
 
|-
 
|-
| 31P9828 || 31P9829 || 128MB PC2700 DDR-SDRAM CL2.5 SO-DIMM
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|Non-ECC, unbuffered 1Rx16 128MB PC2700 CL2.5
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|31P9828
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|N/A
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|31P9829
 
|-
 
|-
| 31P9830 || 31P9831 || 256MB PC2700 DDR-SDRAM CL2.5 SO-DIMM
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|Non-ECC, unbuffered 1Rx16 256MB PC2700 CL2.5
 +
|31P9830
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|N/A
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|31P9831
 
|-
 
|-
 
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|Non-ECC, unbuffered 1Rx8 512MB PC2700 CL2.5
| 31P9832 || 31P9833 || 512MB PC2700 DDR-SDRAM CL2.5 SO-DIMM
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|31P9832
 +
|N/A
 +
|31P9833
 
|-
 
|-
| 31P9834 || 31P9835 || 1GB PC2700 DDR-SDRAM CL2.5 SO-DIMM
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|Non-ECC, unbuffered 2Rx8 1GB PC2700 CL2.5
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|31P9834
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|N/A
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|31P9835
 
|}
 
|}
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Taken from [https://support.lenovo.com/us/en/solutions/migr-55644 Lenovo, Memory compatibility - Notebooks].
  
=== ThinkPads that support this technology ===
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=== Models that support this technology ===
 
{| border=1 cellspacing=0 cellpadding=2
 
{| border=1 cellspacing=0 cellpadding=2
 
|- style="background:#ffdead;white-space:nowrap;"
 
|- style="background:#ffdead;white-space:nowrap;"
! ThinkPad Models !! Soldered<br>on systemboard !! DIMM<br>Slot 1 !! DIMM<br>Slot 2 !! Official<br>Max-Memory !! Unofficial<br>Max-Memory{{Footnote|1}}
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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]]
 
|-
 
|-
| {{G41}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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| {{T41}}, {{T41p}}, {{T42}}, {{T42p}} || N/A || Occupied || Depends || 2GB{{footnote|1}} || 2GB{{footnote|1}}
 
|-
 
|-
| {{R50e}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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| {{X40}} || 256MB or 512MB || Occupied || N/A || 1.28GB{{footnote|2}} or 1.5GB{{footnote|2}} || 1.28GB{{footnote|2}} or 1.5GB{{footnote|2}}
 
|-
 
|-
| {{R50}}, {{R50p}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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| {{X32}} || N/A || Occupied || Depends || 2GB{{footnote|1}} || 2GB{{footnote|1}}
 
|-
 
|-
| {{R51}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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| {{R50}}, {{R50e}}, {{R50p}}, {{R51}} || N/A || Occupied || Depends || 2GB{{footnote|1}} || 2GB{{footnote|1}}
 
|-
 
|-
| {{T41}}, {{T41p}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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| {{G41}} || N/A || Occupied || Depends || 2GB{{footnote|1}} || 2GB{{footnote|1}}
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|}
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{{footnotes|
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#Attained via two 2Rx8 1GB DDR non-ECC SO-UDIMMs, not possible with 1Rx8 1GB DDR non-ECC SO-UDIMMs. (if they exist)
 +
#Attained via one 2Rx8 1GB DDR non-ECC SO-UDIMMs, not possible with 1Rx8 1GB DDR non-ECC SO-UDIMMs. (if they exist)
 +
}}
 +
 
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== Available DRAM modules from other companies ==
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{| border=1 cellspacing=0 cellpadding=2
 +
|- style="background:#ffdead;white-space:nowrap;"
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! Manufacturer !! Partnumber !! Description !! Tested on model
 
|-
 
|-
| {{T42}}, {{T42p}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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| TBD || TBD || TBD || TBD
|-
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| {{X31}}, {{X32}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|2}} {{Footnote|3}}
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|-
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| {{X40}} || 256 or 512MB || Empty || NA || 1.25 or 1.5GB{{Footnote|4}} || 1.25 or 1.5GB{{Footnote|3}} {{Footnote|4}}
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|}
 
|}
{{Footnotes|
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# See [[Unofficial_maximum_memory_specs]]
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[[Category:DRAM]]
# Based on 2x 1GB DIMMs, might require removal of original base memory
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# DDR SO-DIMM modules exist at a maximum of 1GB. You cannot physically install more RAM than the official specs state. Chipset is limited to 2GB.
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# Based on base 256 or 512MB plus 1GB DIMM in Slot 1}}
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[[Category:Components]]
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Latest revision as of 14:22, 3 May 2020

NOTE!
As PC2700 is getting increasingly difficult to acquire, PC3200 can be used instead. Using PC3200 may or may not increase the performance of your model, as some models may underclock it to their respective original DRAM speeds.

PC2700

This is DDR SDRAM at 333 MT/s in a 200-pin SO-DIMM form-factor. DDR333 may also be interchangeably referred to as PC2700.

SO-DIMM

Available DRAM modules from Lenovo

DDR type Individual / Single-Pack
Option Marketing Part Number
25-Pack Option
Marketing Part Number
Field Replacement Unit
(FRU) Service Part Number
Non-ECC, unbuffered 1Rx16 128MB PC2700 CL2.5 31P9828 N/A 31P9829
Non-ECC, unbuffered 1Rx16 256MB PC2700 CL2.5 31P9830 N/A 31P9831
Non-ECC, unbuffered 1Rx8 512MB PC2700 CL2.5 31P9832 N/A 31P9833
Non-ECC, unbuffered 2Rx8 1GB PC2700 CL2.5 31P9834 N/A 31P9835

Taken from Lenovo, Memory compatibility - Notebooks.

Models that support this technology

Models Soldered
on motherboard
SO-DIMM
Slot 1
SO-DIMM
Slot 2
Official
Max-Memory
Unofficial
Max-Memory
T41, T41p, T42, T42p N/A Occupied Depends 2GB1 2GB1
X40 256MB or 512MB Occupied N/A 1.28GB2 or 1.5GB2 1.28GB2 or 1.5GB2
X32 N/A Occupied Depends 2GB1 2GB1
R50, R50e, R50p, R51 N/A Occupied Depends 2GB1 2GB1
G41 N/A Occupied Depends 2GB1 2GB1

FOOTNOTES [Δ]
  1. Attained via two 2Rx8 1GB DDR non-ECC SO-UDIMMs, not possible with 1Rx8 1GB DDR non-ECC SO-UDIMMs. (if they exist)
  2. Attained via one 2Rx8 1GB DDR non-ECC SO-UDIMMs, not possible with 1Rx8 1GB DDR non-ECC SO-UDIMMs. (if they exist)

Available DRAM modules from other companies

Manufacturer Partnumber Description Tested on model
TBD TBD TBD TBD