Can I use the HDD and the CPU from a T42p in a T43?

[ginahoy]

I decided to retire my wife's T42P after the fan fuse blew. I don't have time to buy a new computer and set up the O/S and all her software, so I'm planning to buy her a nice T42 or T43 and just plug in her HDD. Also, I had upgraded her CPU to the 765 (2.1 GHz), so I'll probably want to eventually swap that as well. Can someone confirm that HDD and CPU are interchangeable between T42 and T43?

Also, I installed an N card for her ThinkPad and had to use the no-1802 patch. I read elsewhere in this forum that won't work with T43. Does anyone know if there's a patch for T43? Otherwise, I'll limit my search to T42's.

Thanks

[ajkula66]

CPU is a no-go. HDD is, but there's a good chance that a T43 will not boot and/or run properly with an OS install from T42/p. Fresh install is highly recommended.

There's a modded BIOS that allows for use of non-approved wireless cards in T43/p units. The "no-1802" patch does not work.

[RealBlackStuff]

HDD yes, but you'll need to update a bunch of IBM/Lenovo drivers.
CPU no way.
BIOS mod for T43/R52: look for TTAV134's modded BIOS here: http://www.thinkwiki.org/wiki/Problem_w ... hard_disks

[ginahoy]

Thanks for quick replies. You guys are awesome! I'll just stick to T42P's. The CPU isn't that big of a big deal, I could probably find a T43 with similar, but I *really* don't want to have to mess with drivers and such, and . If I had time to do a fresh install, I'd buy something modern. I just want to plug in the drive and say you're welcome. I can run the no-1802 patch later when I have time to swap out the wireless card.

One more thing... she has 14" display but I'd like to get her a 15". Is a different driver needed, and if so, will her HDD (original factory install) have the driver?

[Neil]

One more thing... she has 14" display but I'd like to get her a 15". Is a different driver needed, and if so, will her HDD (original factory install) have the driver?

Are you asking about simply swapping the HDD from her 14" T42p into a 15" T42p machine? If so, it will probably just work like it is, since the system boards are almost identical, and the OS will detect the different LCD and adjust accordingly.

[ginahoy]

Are you asking about simply swapping the HDD from her 14" T42p into a 15" T42p machine? If so, it will probably just work like it is, since the system boards are almost identical, and the OS will detect the different LCD and adjust accordingly.

Yup, that's correct. Thanks.

Since chassis is wider, is keyboard different? What about mouse pad? I just put a new keyboard and mouse pad in her computer last year. Would be good if I can keep those as spares.

[ajkula66]

Since chassis is wider, is keyboard different?

Yes they are. Not interchangeable.

What about mouse pad? I just put a new keyboard and mouse pad in her computer last year. Would be good if I can keep those as spares.

If by "mouse pad" you mean palmrest/touchpad, these are different as well and size-specific, so anything from a 14" is worthless for a 15" unit and vice versa.

[brchan]

Since chassis is wider, is keyboard different?

The 15" and 14.1" models use different keyboards.

[ginahoy]

If by "mouse pad" you mean palmrest/touchpad, these are different as well and size-specific

Sorry, I meant touchpad assembly with two buttons on bottom. When I replaced the touchpad, I just slipped it into the existing palm rest and attached with 4 screws. Presumably it would work with 15" palm rest?

[ajkula66]

Presumably it would work with 15" palm rest?

I don't have any of these machines on hand to compare, but would say that these are likely different between 14" and 15" units.

[ginahoy]

Ok. Not worth worrying about. I guess I'll find out when I get another machine.

[kfzhu1229]

CPU in a T42p can be used for OVERCLOCK PURPOSE ONLY in a T43. I saw a forum somewhere saying that by connecting a jumper to certain pins will make the T42 processor overclock in T43 but also overheats. If your T42p's processor is a top-of-the-line version (2.1ghz Pentium M 765 or something) it will most likely overheat more than overclock. Just get a Pentium M 780 for T43 which costs around $15 today on eBay and they work fine as long as you choose a good thermal compound and a good fan(I have no idea how the long fan in T42p work in T43 but I am pretty sure the short fan won't work with ATI model of T43).

[ginahoy]

Kfzhu, as noted in earlier post, I decided to go with T42p since my HDD would not likely work in a T43 without some driver hasssles.

So I purchased a nice T42p from a fellow forum member, and just as I had hoped, I was able to plug in my HDD and run. There were a couple of 'new hardware found' alerts and I had to reset the display resolution.

This T42p has the Pentium M745. At some point I plan to install the M765 from the previous T42 and my N-class wireless card. And just to correct an earlier post by someone, the keyboard and touchpad for the T42p 15" are the same as my original T42 14.1" so I'll keep them as spares.

[RealBlackStuff]

And just to correct an earlier post by someone, the keyboard and touchpad for the T42p 15" are the same as my original T42 14.1" so I'll keep them as spares.

The keyboards from 14.1" and 15" T4x/R5x ARE different, they have different mounting studs on the bottom, but their layout is identical.
The touchpad/mousekey combo in the palmrest might be the same for both size, never tried that.

[ginahoy]

The keyboards from 14.1" and 15" T4x/R5x ARE different, they have different mounting studs on the bottom, but their layout is identical.

Ok, I haven't removed the kb from the 15" yet. I was going by the kb frame, as visible from the top. Thanks for clarifying.

The touchpad/mousekey combo in the palmrest might be the same for both size, never tried that.

The palmrest is obviously different since 15" chassis is wider. I guess I won't know for sure about the touchpad/key assembly until I open 'er up, but I can't imagine any reason that part would be different.

[Neil]

The keyboards look the same, but the screw posts are in different positions. The keyboard bezel and palm rest are different sizes since the chassis is larger.

[MrMaguire]

Why won't the CPU work, different socket?

[RealBlackStuff]

Same socket 479 but different insides.
T42 has FSB 400 MT/s, T43 has FSB 533MT/s.

[MrMaguire]

What happens when you put a 400MHz FSB Pentium M in a T43?

[RealBlackStuff]

It may run for a few minutes, and then freezes or crashes. NOT recommended.

[kfzhu1229]

What happens when you put a 400MHz FSB Pentium M in a T43?

You can try and search up. If your Pentium M non-Sonoma Dothan CPU runs more than 2ghz it is not recommended. There is a post somewhere on the web saying that by connecting certain 2 pins together with that CPU on a T43/R52 can result in overclocking. But you'd be better off spending around $15 on a Pentium M 780.

[kfzhu1229]

The keyboards from 14.1" and 15" T4x/R5x ARE different, they have different mounting studs on the bottom, but their layout is identical.

Ok, I haven't removed the kb from the 15" yet. I was going by the kb frame, as visible from the top. Thanks for clarifying.

The touchpad/mousekey combo in the palmrest might be the same for both size, never tried that.

The palmrest is obviously different since 15" chassis is wider. I guess I won't know for sure about the touchpad/key assembly until I open 'er up, but I can't imagine any reason that part would be different.

I don't know about the touchpad and fp scanner themselves but I noticed that on a 15" T43 the front panel is a single piece (you do NOT have a separate palm rest) when I was trying to change the heatsink/fan. Also the sleep button on a 14" is closer to the screen cable while you have about a cm space from the sleep button of a 15" T4x to the screen cable.