PC-133 - Revision history

Bugmenot2: removed 25-pack part number, it DOESN'T exist for these RAM sticks

2020-11-05T13:48:06Z

removed 25-pack part number, it DOESN'T exist for these RAM sticks

Bugmenot2: /* Models that support this technology */ corrected mistake

2020-05-03T12:58:30Z

‎Models that support this technology: corrected mistake

Bugmenot2: added more information

2020-05-03T12:58:06Z

added more information

Bugmenot2: changed category

2020-05-02T08:14:59Z

changed category

Tonko: /* PC-133 */

2006-01-16T20:44:47Z

‎PC-133

Tonko: /* ThinkPads that support this technology */

2005-12-15T05:11:39Z

‎ThinkPads that support this technology

Tonko: /* ThinkPads that support this technology */

2005-12-15T03:56:32Z

‎ThinkPads that support this technology

Tonko: /* ThinkPads that support this technology */

2005-12-15T03:56:17Z

‎ThinkPads that support this technology

Tonko at 03:50, 15 December 2005

2005-12-15T03:50:04Z

New page

__NOTOC__
{| width="100%"
|style="vertical-align:top" |
<div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
=== PC-133 ===
This is 133MHz SDRAM memory in 144-pin SO-DIMM form-factor.

</div>
|style="vertical-align:top" |
|}

=== Available memory types from IBM ===
{| border=1 cellspacing=0 cellpadding=2
|- style="background:#ffdead;white-space:nowrap;"
! Partnumber !! FRU !! Description
|-
| 19K4650 || 19K4651 || 64MB PC133 SDRAM CL3 NP SO-DIMM
|-
| 19K4652 || 19K4653 || 128MB PC133 SDRAM CL3 NP SO-DIMM
|-
| 19K4654 || 19K4655 || 256MB PC133 SDRAM CL3 NP SO-DIMM
|-
| 19K4656 || 19K4657 || 512MB PC133 SDRAM CL3 NP SO-DIMM
|}

=== ThinkPads that support this technology ===
{| border=1 cellspacing=0 cellpadding=2
|- style="background:#ffdead;white-space:nowrap;"
! ThinkPad Models !! DIMM Slot 1 !! DIMM Slot 2 !! Official<br>Max-Memory !! Unofficial<br>Max-Memory{{Footnote|1}}
|-
| {{A30}}, {{A30p}} || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
|-
| {{R31}} || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
|-
| {{T23}} || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
|-
| {{X22}} || 128MB<br>soldered to systemboard || Empty or<br>128MB SO-DIMM || 640MB{{Footnote|3}} || Unknown
|-
| {{X23}} || 128MB<br>soldered to systemboard || Empty || 640MB{{Footnote|3}} || Unknown
|-
| {{X24}} || 128MB<br>soldered to systemboard || 128MB SO-DIMM || 640MB{{Footnote|3}} || Unknown
|-
| {{X30}} || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
|}
{{Footnotes|
# See [[Unofficial_maximum_memory_specs]]
# Based on 2x 512MB DIMMs, might require removal of original base memory
# Based on base 128 plus 512MB DIMM in Slot 2}}
[[Category:Components]]

@@ Line 14: / Line 14: @@
 |- style="background:#ffdead;white-space:nowrap;"
 |'''SDR type'''
-|'''Individual / Single-Pack<br>Option Marketing Part Number'''
+|'''Option Part Number<br>(OPT)'''
-|'''25-Pack Option<br>Marketing Part Number'''
+|'''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
 |}

@@ Line 50: / Line 50: @@
 | {{X30}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
 |-
-| {{X22}}, {{X23}}, {{X24}} || 128MB || Depends || N/A || 1GB{{footnote|2}} || 1GB{{footnote|2}}
+| {{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}}

@@ Line 3: / Line 3: @@
 |style="vertical-align:top" |
 <div style="margin: 0; margin-right:10px; border: 1px solid #dfdfdf; padding: 0em 1em 1em 1em; background-color:#F8F8FF; align:right;">
-=== PC-133 ===
+=== PC133 ===
-This is 133MHz SDRAM memory in 144-pin SO-DIMM form-factor.
+This is SDRAM at 133 MHz in a 144-pin SO-DIMM form-factor.
 </div>
 |style="vertical-align:top" |
@@ Line 11: / Line 10: @@
 |}
-=== Available memory types from IBM ===
+=== Available DRAM modules from IBM ===
 {| border=1 cellspacing=0 cellpadding=2
 |- style="background:#ffdead;white-space:nowrap;"
-! Partnumber !! FRU !! Description
+|'''SDR type'''
 |-
-| 19K4650 || 19K4651 || 64MB PC133 SDRAM CL3 NP SO-DIMM
+|Non-ECC, unbuffered 1Rx8 64MB PC133 CL3
 |-
-| 19K4652 || 19K4653 || 128MB PC133 SDRAM CL3 NP SO-DIMM
+|Non-ECC, unbuffered 1Rx8 128MB PC133 CL3
 |-
-| 19K4654 || 19K4655 || 256MB PC133 SDRAM CL3 NP SO-DIMM
+|Non-ECC, unbuffered 1Rx8 256MB PC133 CL3
 |-
-| 19K4656 || 19K4657 || 512MB PC133 SDRAM CL3 NP SO-DIMM
+|Non-ECC, unbuffered 2Rx8 512MB PC133 CL3
 |}
-=== ThinkPads that support this technology ===
+=== Models that support this technology ===
 {| border=1 cellspacing=0 cellpadding=2
 |- 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}}
+! 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}} || || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
+| {{A30}}, {{A30p}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
 |-
-| {{R30}}{{Footnote|4}} || || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
+| {{T23}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
 |-
-| {{R31}} || || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
+| {{X30}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
 |-
-| {{T23}} || || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
+| {{X22}}, {{X23}}, {{X24}} || 128MB || Depends || N/A || 1GB{{footnote|2}} || 1GB{{footnote|2}}
 |-
-| {{X22}} || 128MB || Empty or<br>128MB SO-DIMM || NA || 640MB{{Footnote|3}} || Unknown
+| {{R30}}{{footnote|3}}, {{R31}} || N/A || Occupied || Depends || 1GB{{footnote|1}} || 1GB{{footnote|1}}
-|-
+|}
-| {{X23}} || 128MB || Empty || NA || 640MB{{Footnote|3}} || Unknown
+{{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.
-| {{X24}} || 128MB || 128MB SO-DIMM || NA || 640MB{{Footnote|3}} || Unknown
+#Attained via one 2Rx8 512MB PC133 non-ECC SO-UDIMMs, not possible with 1Rx8 512MB PC133 non-ECC SO-UDIMMs.
 |-
-| {{X30}} || || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
+| TBD || TBD || TBD || TBD
 |}
 [[Category:DRAM]]

@@ Line 51: / Line 51: @@
 # Based on base 128 plus 512MB DIMM in Slot 2
 # Ships with PC-133 memory, but runs memory at PC-100 speed}}
-[[Category:Components]]

@@ Line 30: / Line 30: @@
 |-
 | {{A30}}, {{A30p}} || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
 |-
 | {{R31}} || Occupied || Empty || 1GB{{Footnote|2}} || Unknown
@@ Line 47: / Line 49: @@
 # Based on 2x 512MB DIMMs, might require removal of original base memory
 # Based on base 128 plus 512MB DIMM in Slot 2}}
 [[Category:Components]]