ThinkWiki - User contributions [en]

Unofficial maximum memory specs

2006-09-02T09:17:20Z

770x-fan: BIOS-version for 770x

Some ThinkPads are known to support more memory than their specs say. This page gathers information about those models, how much memory they can take and what special requirements that memory must fulfill.

Have a look at the [[Memory]] page for the official memory configs and partnumbers

==Tested Memory configurations==
The following table gives an overview of tested memory configurations that exceed the specified limits for that ThinkPad type.

{| border="1" cellspacing="0" cellpadding="2"
! ThinkPad !! max. Specs !! BIOS !! Embedded Controller !! Memory configuration successfully tested
|- style="vertical-align:top;"
| ThinkPad T30 2366-92U || 1 GB || 2.08 || 1.06 ||
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
but see [[problem with T30 not booting with 1 GiB memory module]].
|-
| ThinkPad 240 2609-40U || 320MByte || IRETWWW76 || n/a ||
* Any PC100/256MByte memory in 16 Chip Configuration will do
|-
| ThinkPad 570 2644-3AU || 320MByte || 1.16 IMET65WW 11/11/99 || n/a ||
* Kingston KTM-TP390X/256 256MB MODULE FRU 16P6327 - 16 Chips 8 each side
|-
| ThinkPad 770x 9549|| 448MByte || 1.11 IIET42WW 09/10/99 || n/a ||
* 448MB = 256MB PC-100 + 128MB PC-66 + internal 64MB using IBM 256MB MODULE FRU 33L3070 PC 100 CL2 - 16 Chips 8 each side.
* 512MB = 2x256MB PC-100 + 64MB internal booted up as well. 512MB is due to 440BX-Chipset limitations, 64MB are overlapping or unused.
|-
| ThinkPad 600 ? || 288 mb || ? || ? ||
* 416 mb = 256 mb '''low density''' PC-100 SODIMM + 128 mb PC-66 SODIMM + 32 mb PC-66 onboard (Note: that which SODIMM you put in which slot matters. This was first reported working on the [http://zurich.csail.mit.edu/hypermail/thinkpad/2004-04/0797.html Thinkpad Mailing List], and it worked error-free for me when I tested it.
|-
| ThinkPad A31p 2653-R || 1 GB || 1.09 || 1.05 ||
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
|-
|}

==External Sources==
*[http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-55644 IBM's official Memory compatibility page]

Problem with broken sound on some ThinkPads

2006-09-01T23:31:23Z

770x-fan: 770x kernel 2.6 ALSA-Sound parameters

Information about the phenomena of broken sound on some ThinkPad models.

==Problem description==
There are two sound chips in these machines, a PCI based [[CS4610|Crystal SoundFusion 4610]], and an ISA based [[CS4239|Crystal SoundFusion 4239]].

The Linux drivers for the CS4610 (both OSS and ALSA) expect to find it paired with an AC'97 codec chip, while instead the CS4610 is paired with the ISA CS4239. This was done, because at the time this allowed DOS games to output sound using SoundBlaster Pro emulation.

To get sound under Linux you will have to use the OSS cs4232 or ALSA snd-cs4236 driver for the ISA soundchip instead.

A good thread on the problem can be found in the [http://www.mail-archive.com/alsa-devel@lists.sourceforge.net/msg01181.html alsa-devel mailing list]

==Affected Models==
*ThinkPad {{600E}}
*ThinkPad {{770X}}, {{770Z}}

==Solutions==
===Activating the devices===
First you must make sure that the sound devices are activated.

Disable "Quick Boot" in your ThinkPad BIOS, otherwise the sound devices will not be activated by the BIOS.
To enter the BIOS, power cycle your ThinkPad and press F1 when the ThinkPad screen shows.

You can also manually activate the sound card once booted:
* With apm and pnpbios, this is done with setpnp from the pcmcia package:
:{{cmdroot|setpnp 0x0e on}}
:{{cmdroot|setpnp 0x0f on}}

* With acpi and pnpacpi, use these commands:
:{{cmdroot|echo 'activate' > /sys/devices/pnp0/00:05/resources}}
:{{cmdroot|echo 'activate' > /sys/devices/pnp0/00:06/resources}}

It seems that with very new kernels and ACPI enabled, you will need to manually enable the device even if you have correctly disabled "Quick Boot".

This only works with newer kernels that fully support pnpacpi, and provided that [http://bugzilla.kernel.org/show_bug.cgi?id=3912 this patch] has been applied (applied to Linus' tree in july 2005).

It seems that the default dma numbers change when pnpacpi is used (to dma1=1 dma2=3, for instance).

If you're using acpi and pnpacpi, you can see which resources the sound card is using like this:
:{{cmdroot|cat /sys/devices/pnp0/00:05/resources}}
:{{cmdroot|cat /sys/devices/pnp0/00:06/resources}}

===Using ALSA===
Compile the sound driver as a module and load it after everything else.
You can add the following line to a boot script, ie. {{path|rc.local}} for that:
/sbin/modprobe snd-cs4236 index=0 port=0x530 cport=0x538 irq=5 dma1=1 dma2=0 isapnp=0

This is reported to work at least with kernel 2.6.9, 2.6.13 and 2.6.15.

On the 770x using kernel 2.6.16/2.6.17 you may try this:
/sbin/modprobe snd-cs4232 port=0x530 cport=0x120 irq=5 dma1=1 dma2=0 isapnp=0

There is a [[Script for configuring the CS4239 sound chip in PnP mode|nice script]] which can do all this for you, including activation of the device and detecting the correct resource settings to use.

===Using OSS===
Add the following lines to a boot script, ie. {{path|rc.local}}:
modprobe sound
insmod ad1848
insmod uart401
insmod cs4232 io=0x530 irq=5 dma=1 dma2=0

or try from commandline:

modprobe cs4232 io=0x530 irq=5 dma=1 dma2=0 mpuio=0x330 mpuirq=7 synthio=0x330 synthirq=7

In case an insmod or modprobe of cs4232 fails with the following error appearing at the console, via dmesg, or in {{path|/var/log/messages}}, double-check you have ''QUICKBOOT (in the BIOS) disabled''.
modprobe: FATAL: Error inserting cs4232: No such device

====Audio loops====
If your OSS module loads like it should, but audio loops or sounds choppy then reloading the module should help:
:{{cmdroot|rmmod cs4232 && modprobe cs4232}}

(For the modprobe command to work without IRQ/IO/DMA parameters, you'll probably want to add the correct parameters as an "options" clause in {{path|/etc/modprobe.conf}}).

Unofficial maximum memory specs

2006-09-01T23:05:45Z

770x-fan: Yes, my 770x runs stable with 448MB using a FRU-33L3070 256MB DIMM

Some ThinkPads are known to support more memory than their specs say. This page gathers information about those models, how much memory they can take and what special requirements that memory must fulfill.

Have a look at the [[Memory]] page for the official memory configs and partnumbers

==Tested Memory configurations==
The following table gives an overview of tested memory configurations that exceed the specified limits for that ThinkPad type.

{| border="1" cellspacing="0" cellpadding="2"
! ThinkPad !! max. Specs !! BIOS !! Embedded Controller !! Memory configuration successfully tested
|- style="vertical-align:top;"
| ThinkPad T30 2366-92U || 1 GB || 2.08 || 1.06 ||
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
* Kingmax 1GB 200-Pin DDR SO-DIMM DDR333 (PC2700) Model # MSAD42D-KI
but see [[problem with T30 not booting with 1 GiB memory module]].
|-
| ThinkPad 240 2609-40U || 320MByte || IRETWWW76 || n/a ||
* Any PC100/256MByte memory in 16 Chip Configuration will do
|-
| ThinkPad 570 2644-3AU || 320MByte || 1.16 IMET65WW 11/11/99 || n/a ||
* Kingston KTM-TP390X/256 256MB MODULE FRU 16P6327 - 16 Chips 8 each side
|-
| ThinkPad 770x || 448MByte || newest (2005) || n/a ||
* 448MB = 256MB PC-100 + 128MB PC-66 + internal 64MB using IBM 256MB MODULE FRU 33L3070 PC 100 CL2 - 16 Chips 8 each side.
* 512MB = 2x256MB PC-100 + 64MB internal booted up as well. 512MB is due to 440BX-Chipset limitations, 64MB are overlapping or unused.
|-
| ThinkPad 600 ? || 288 mb || ? || ? ||
* 416 mb = 256 mb '''low density''' PC-100 SODIMM + 128 mb PC-66 SODIMM + 32 mb PC-66 onboard (Note: that which SODIMM you put in which slot matters. This was first reported working on the [http://zurich.csail.mit.edu/hypermail/thinkpad/2004-04/0797.html Thinkpad Mailing List], and it worked error-free for me when I tested it.
|-
| ThinkPad A31p 2653-R || 1 GB || 1.09 || 1.05 ||
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
* Kingston 1GB 200-Pin DDR Model # KTM - TP9828/1G
|-
|}

==External Sources==
*[http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-55644 IBM's official Memory compatibility page]

PC-100

2006-09-01T22:50:31Z

770x-fan: oops, messed up the footnotes

__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-100 ===
This is 100MHz SDRAM memory in 144-pin SO-DIMM form-factor.

</div>
|style="vertical-align:top" |
[[image:so-dimm.jpg|SO-DIMM]]
|}

=== Available memory types from IBM ===
{| border=1 cellspacing=0 cellpadding=2
|- style="background:#ffdead;white-space:nowrap;"
! Partnumber !! FRU !! Description
|-
| 20L0253 || 20L0263 || 32MB PC100 SDRAM NP SO-DIMM
|-
| 20L0254 || 20L0264 || 64MB PC100 SDRAM NP SO-DIMM
|-
| 20L0255 || 20L0265 || 128MB PC100 SDRAM NP SO-DIMM
|-
| 33L3069 || 33L3070 || 256MB PC100 SDRAM NP SO-DIMM
|}
{{NOTE|As PC-100 memory is getting increasingly difficult to aquire, [[PC-133]] memory may be substituted on some models. Using PC-133 memory will not increase system performance, as it will be run at only PC-100 speed. PC133 memory cannot be used on T20, T21, or T22 models.}}

=== ThinkPads that support this technology ===
{| border=1 cellspacing=0 cellpadding=2
|- style="background:#ffdead;white-space:nowrap;"
! ThinkPad Models !! Soldered on systemboard !! DIMM Slot 1 !! DIMM Slot 2 !! Official Max-Memory !! Unofficial Max-Memory{{Footnote|1}}
|-
| {{240X}} || 64MB || Empty || NA || 192MB{{Footnote|5}} || Unknown
|-
| {{390X}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{570E}} || 64MB || Empty || NA || 320MB{{Footnote|6}} || Unknown
|-
| {{600X}} || 64MB || Occupied || Empty || 576MB{{Footnote|3}} || Unknown
|-
| {{770X}} || 64MB || Occupied || Empty || Unknown || 448MB{{Footnote|7}} or 512MB{{Footnote|2}}
|-
| {{A20m}}, {{A20p}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{A21e}} || || Occupied || Empty || 256MB{{Footnote|4}} || Unknown
|-
| {{A21m}}, {{A21p}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{A22e}} - Celeron || || Occupied || Empty || 256MB{{Footnote|4}} || <384MB
|-
| {{A22e}} - Pentium III || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{A22m}}, {{A22p}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{S30}}, {{S31}} || 128MB || Empty || NA || 256MB{{Footnote|5}} || Unknown
|-
| {{T20}}, {{T21}}, {{T22}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{TransNote}} || 64MB || Empty || NA || 320MB{{Footnote|6}} || Unknown
|-
| {{X20}} || 64MB || Empty or 64MB DIMM|| NA || 320MB{{Footnote|6}} || Unknown
|-
| {{X21}} || 64 or 128MB|| Empty|| NA || 320MB or 384MB{{Footnote|6}} || Unknown
|-
| {{i1200}} || 32 or 64MB|| Empty|| NA || 160 or 192MB{{Footnote|5}} || Unknown
|-
| {{i1210}} || 32MB|| Empty|| NA || 160MB{{Footnote|5}} || Unknown
|-
| {{i1230}}, {{i1250}}, {{i1260}} || 64MB|| Empty|| NA || 192MB{{Footnote|5}} || Unknown
|-
| {{i1300}}, {{i1330}}, {{i1370}} || 64MB|| Empty|| NA || 192MB{{Footnote|5}} || Unknown
|-
| {{i1422}}, {{i1442}}, {{i1482}}, {{i1483}}, {{i1492}} || || Occupied|| Empty || 256MB{{Footnote|4}} || Unknown
|-
| {{i1542}}, {{i1562}}, {{i1592}} || || Occupied|| Empty || 256MB{{Footnote|4}} || Unknown
|}
{{Footnotes|
# See [[Unofficial_maximum_memory_specs]]
# Based on 2x 256MB DIMMs, might require removal of original base memory
# Based on base 64MB plus 2x 256MB DIMM in Slots 1 and 2
# Based on 2x 128MB DIMMs, might require removal of original base memory
# Based on base memory plus 128MB DIMM in Slot 1
# Based on base memory plus 256MB DIMM in Slot 1
# Based on base 64MB plus 1x 256MB and 1x 128MB DIMMs in Slots 1 and 2}}
[[Category:Components]]

PC-100

2006-09-01T22:48:52Z

770x-fan: Yes, my 770x runs stable with 448MB using a FRU-33L3070 256MB DIMM

__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-100 ===
This is 100MHz SDRAM memory in 144-pin SO-DIMM form-factor.

</div>
|style="vertical-align:top" |
[[image:so-dimm.jpg|SO-DIMM]]
|}

=== Available memory types from IBM ===
{| border=1 cellspacing=0 cellpadding=2
|- style="background:#ffdead;white-space:nowrap;"
! Partnumber !! FRU !! Description
|-
| 20L0253 || 20L0263 || 32MB PC100 SDRAM NP SO-DIMM
|-
| 20L0254 || 20L0264 || 64MB PC100 SDRAM NP SO-DIMM
|-
| 20L0255 || 20L0265 || 128MB PC100 SDRAM NP SO-DIMM
|-
| 33L3069 || 33L3070 || 256MB PC100 SDRAM NP SO-DIMM
|}
{{NOTE|As PC-100 memory is getting increasingly difficult to aquire, [[PC-133]] memory may be substituted on some models. Using PC-133 memory will not increase system performance, as it will be run at only PC-100 speed. PC133 memory cannot be used on T20, T21, or T22 models.}}

=== ThinkPads that support this technology ===
{| border=1 cellspacing=0 cellpadding=2
|- style="background:#ffdead;white-space:nowrap;"
! ThinkPad Models !! Soldered on systemboard !! DIMM Slot 1 !! DIMM Slot 2 !! Official Max-Memory !! Unofficial Max-Memory{{Footnote|1}}
|-
| {{240X}} || 64MB || Empty || NA || 192MB{{Footnote|5}} || Unknown
|-
| {{390X}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{570E}} || 64MB || Empty || NA || 320MB{{Footnote|6}} || Unknown
|-
| {{600X}} || 64MB || Occupied || Empty || 576MB{{Footnote|3}} || Unknown
|-
| {{770X}} || 64MB || Occupied || Empty || Unknown || 448MB{{Footnote|7}} or 512MB{{Footnote|2}}
|-
| {{A20m}}, {{A20p}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{A21e}} || || Occupied || Empty || 256MB{{Footnote|4}} || Unknown
|-
| {{A21m}}, {{A21p}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{A22e}} - Celeron || || Occupied || Empty || 256MB{{Footnote|4}} || <384MB
|-
| {{A22e}} - Pentium III || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{A22m}}, {{A22p}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{S30}}, {{S31}} || 128MB || Empty || NA || 256MB{{Footnote|5}} || Unknown
|-
| {{T20}}, {{T21}}, {{T22}} || || Occupied || Empty || 512MB{{Footnote|2}} || Unknown
|-
| {{TransNote}} || 64MB || Empty || NA || 320MB{{Footnote|6}} || Unknown
|-
| {{X20}} || 64MB || Empty or 64MB DIMM|| NA || 320MB{{Footnote|6}} || Unknown
|-
| {{X21}} || 64 or 128MB|| Empty|| NA || 320MB or 384MB{{Footnote|6}} || Unknown
|-
| {{i1200}} || 32 or 64MB|| Empty|| NA || 160 or 192MB{{Footnote|5}} || Unknown
|-
| {{i1210}} || 32MB|| Empty|| NA || 160MB{{Footnote|5}} || Unknown
|-
| {{i1230}}, {{i1250}}, {{i1260}} || 64MB|| Empty|| NA || 192MB{{Footnote|5}} || Unknown
|-
| {{i1300}}, {{i1330}}, {{i1370}} || 64MB|| Empty|| NA || 192MB{{Footnote|5}} || Unknown
|-
| {{i1422}}, {{i1442}}, {{i1482}}, {{i1483}}, {{i1492}} || || Occupied|| Empty || 256MB{{Footnote|4}} || Unknown
|-
| {{i1542}}, {{i1562}}, {{i1592}} || || Occupied|| Empty || 256MB{{Footnote|4}} || Unknown
|}
{{Footnotes|
# See [[Unofficial_maximum_memory_specs]]
# Based on 2x 256MB DIMMs, might require removal of original base memory
# Based on base 64MB plus 2x 256MB DIMM in Slots 1 and 2
# Based on 2x 128MB DIMMs, might require removal of original base memory
# Based on base memory plus 128MB DIMM in Slot 1
# Based on base memory plus 256MB DIMM in Slot 1}}
# Based on base 64MB plus 1x 256MB and 1x 128MB DIMMs in Slots 1 and 2
[[Category:Components]]