Difference between revisions of "PC2-4200"

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{{NOTE|As PC2-4200 is getting increasingly difficult to acquire, PC2-6400 can be used instead. Using PC2-6400 may or may not increase the performance of your model, as some models may underclock it to their respective original DRAM speeds.}}
 
=== PC2-4200 ===
 
=== PC2-4200 ===
−
This is DDR2 (Double Data Rate) memory in 200-pin SO-DIMM form-factor.<br>
+
This is DDR2 SDRAM at 533 MT/s in a 200-pin SO-DIMM form-factor. DDR2-533 may also be interchangeably referred to as PC2-4200.
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PC2-4200 memory is also called DDR2-533
 
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|}
 
|}
  
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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;"
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! Partnumber !! FRU !! Description
+
|'''DDR2 type'''
 +
|'''Individual / Single-Pack<br>Option Marketing Part Number'''
 +
|'''Field Replacement Unit<br>(FRU) Service Part Number'''
 
|-
 
|-
−
| 73P3840 || 73P3841 || 256MB PC2-4200 DDR2 NP CL4 SO-DIMM
+
|Non-ECC, unbuffered 2Rx16 256MB PC2-4200 CL4
 +
|73P3840
 +
|73P3841
 
|-
 
|-
−
| 73P3842 || 73P3843 || 512MB PC2-4200 DDR2 NP CL4 SO-DIMM
+
|Non-ECC, unbuffered 2Rx16 512MB PC2-4200 CL4
 +
|73P3842
 +
|73P3843
 
|-
 
|-
−
| 73P3844 || 73P3845 || 1GB PC2-4200 DDR2 NP CL4 SO-DIMM
+
|Non-ECC, unbuffered 2Rx8 1GB PC2-4200 CL4
 +
|73P3844
 +
|73P3845
 
|-
 
|-
−
| 73P3846 || 73P3847 || 2GB PC2-4200 DDR2 NP CL4 SO-DIMM
+
|Non-ECC, unbuffered 2Rx8 2GB PC2-4200 CL4
 +
|73P3846
 +
|73P3847
 
|}
 
|}
  
−
=== ThinkPads that support this technology ===
+
=== 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]]
 
|-
 
|-
−
| {{R51e}} || || Occupied || Empty || 2GB{{Footnote|2}} || Unknown
+
| {{T43}}, {{T43p}} || N/A || Occupied || Depends || 2GB{{footnote|1}} {{footnote|3}} || 2GB{{footnote|1}} {{footnote|3}}
 
|-
 
|-
−
| {{R52}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|3}}
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| {{X41}}, {{X41 Tablet}} || 256MB or 512MB || Occupied || N/A || 2GB{{footnote|2}} {{footnote|3}} || 2GB{{footnote|2}} {{footnote|3}}
 
|-
 
|-
−
| {{T43}}, {{T43p}} || || Occupied || Empty || 2GB{{Footnote|2}} || 2GB{{Footnote|3}}
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| {{R51e}}, {{R52}} || N/A || Occupied || Depends || 2GB{{footnote|1}} {{footnote|3}} || 2GB{{footnote|1}} {{footnote|3}}
 
|-
 
|-
−
| {{X41}}, {{X41T}} || 256 or 512MB || Empty || NA || 1.28 or 1.53GB{{Footnote|4}} || 2GB{{Footnote|3}} {{Footnote|5}}
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| {{Z60t}}, {{Z60m}} || N/A || Occupied || Depends || 2GB{{footnote|1}} {{footnote|3}} || 2GB{{footnote|1}} {{footnote|3}}
−
|-
+
|}
−
| {{T60p}} || || Occupied || depends || 4GB{{Footnote|6}} || 4GB{{Footnote|6}}
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{{footnotes|
 +
#Attained via two 2Rx8 1GB DDR2 non-ECC SO-UDIMMs, also possible with 1Rx8 1GB DDR2 non-ECC SO-UDIMMs.
 +
#Attained via one 2Rx8 2GB DDR2 non-ECC SO-UDIMMs, may not be possible with 1Rx8 2GB DDR2 non-ECC SO-UDIMMs.
 +
#The i915 series chipsets are completely incapable of addressing over 2GB, not because of an I/O space limitation, but due to Intel's intentional hardware limitation (a.k.a. crippling them). This is painfully obvious as the desktop i915 series chipsets are not affected by this limitation, since they can address past 2GB (up to 4GB).
 +
}}
 +
 
 +
== Available DRAM modules from other companies ==
 +
{| border=1 cellspacing=0 cellpadding=2
 +
|- style="background:#ffdead;white-space:nowrap;"
 +
! Manufacturer !! Partnumber !! Description !! Tested on model
 
|-
 
|-
−
| {{Z60m}}, {{Z60t}} || || Occupied || Empty || 2GB{{Footnote|2}} {{Footnote|3}}|| 2GB{{Footnote|2}} {{Footnote|3}}
+
| TBD || TBD || TBD || TBD
 
|}
 
|}
−
{{Footnotes|
 
−
# See [[Unofficial maximum memory specs]]
 
−
# Based on 2x 1GB DIMMs, might require removal of original base memory
 
−
# Due to Intel 915 chipset limitation, addressable memory is 2GB
 
−
# Based on base 256 or 512MB plus 1GB DIMM in Slot 1
 
−
# Based on base 256 or 512MB plus 2GB DIMM in Slot 1
 
−
# Due to Intel 945 chipset limitation, addressable memory will be (4GB - I/O space) ~ 3.1GB}}
 
  
 
[[Category:DRAM]]
 
[[Category:DRAM]]

Latest revision as of 14:50, 5 November 2020

NOTE!
As PC2-4200 is getting increasingly difficult to acquire, PC2-6400 can be used instead. Using PC2-6400 may or may not increase the performance of your model, as some models may underclock it to their respective original DRAM speeds.

PC2-4200

This is DDR2 SDRAM at 533 MT/s in a 200-pin SO-DIMM form-factor. DDR2-533 may also be interchangeably referred to as PC2-4200.

SO-DIMM

Available DRAM modules from Lenovo

DDR2 type Individual / Single-Pack
Option Marketing Part Number 		Field Replacement Unit
(FRU) Service Part Number
Non-ECC, unbuffered 2Rx16 256MB PC2-4200 CL4 73P3840 73P3841
Non-ECC, unbuffered 2Rx16 512MB PC2-4200 CL4 73P3842 73P3843
Non-ECC, unbuffered 2Rx8 1GB PC2-4200 CL4 73P3844 73P3845
Non-ECC, unbuffered 2Rx8 2GB PC2-4200 CL4 73P3846 73P3847

Models that support this technology

Models Soldered
on motherboard		 SO-DIMM
Slot 1		 SO-DIMM
Slot 2		 Official
Max-Memory		 Unofficial
Max-Memory
T43, T43p N/A Occupied Depends 2GB1 3 2GB1 3
X41, X41 Tablet 256MB or 512MB Occupied N/A 2GB2 3 2GB2 3
R51e, R52 N/A Occupied Depends 2GB1 3 2GB1 3
Z60t, Z60m N/A Occupied Depends 2GB1 3 2GB1 3
FOOTNOTES [Δ]
  1. Attained via two 2Rx8 1GB DDR2 non-ECC SO-UDIMMs, also possible with 1Rx8 1GB DDR2 non-ECC SO-UDIMMs.
  2. Attained via one 2Rx8 2GB DDR2 non-ECC SO-UDIMMs, may not be possible with 1Rx8 2GB DDR2 non-ECC SO-UDIMMs.
  3. The i915 series chipsets are completely incapable of addressing over 2GB, not because of an I/O space limitation, but due to Intel's intentional hardware limitation (a.k.a. crippling them). This is painfully obvious as the desktop i915 series chipsets are not affected by this limitation, since they can address past 2GB (up to 4GB).

Available DRAM modules from other companies

Manufacturer Partnumber Description Tested on model
TBD TBD TBD TBD
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