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Search found 62 matches

by MooNWalker
Tue Nov 05, 2019 12:46 pm
Forum: ThinkPad Legacy Hardware
Topic: 750C HDD doesn't spin up
Replies: 7
Views: 4614

Re: 750C HDD doesn't spin up

Based on what's going on, I'd say the system board is bad. It sucks, since your other board doesn't put out video. I know it might not be an option, but there is a PCMCIA boot, where you can use a compact flash card as your boot up device. I don't remember if this is limited to 512MB or not, since ...
by MooNWalker
Tue Nov 05, 2019 12:42 pm
Forum: ThinkPad Legacy Hardware
Topic: 701C replacement batteries
Replies: 15
Views: 5446

Re: 701C replacement batteries

Using a spot welder is definitely not rocket science. I worked for a laptop battery rebuilder back in 2007, so I have first hand experience with them. It's a form of welding, but nothing like if I were building a farm trailer or farm equipment (I hire someone else who knows how to weld to do that s...
by MooNWalker
Mon Oct 07, 2019 10:52 am
Forum: ThinkPad Legacy Hardware
Topic: [SOLVED] 750C serial port max bit rate?
Replies: 2
Views: 3526

Re: 750C serial port max bit rate?

K, I'm not sure why, but while set to 38.4Kbps I've been getting a buttload of lost packets, but bumping the speed up to 115.2Kbps suddenly everything works fine, with packet loss being mere 1-2%. I don't understand why the packet loss would peak out at certain speed and then drop when speed is rais...
by MooNWalker
Sun Oct 06, 2019 10:29 am
Forum: ThinkPad Legacy Hardware
Topic: [SOLVED] 750C serial port max bit rate?
Replies: 2
Views: 3526

[SOLVED] 750C serial port max bit rate?

I've been playing around with some very old OS/software on my 750C, and part of the setup was getting network to work. Since the OS (very early, pre-2.0 Linux) doesn't yet support any of the PCMCIA network cards I have I've tried using PPP/SLIP with null modem cable. The setup works, but the maximum...
by MooNWalker
Thu Sep 26, 2019 1:18 pm
Forum: ThinkPad Legacy Hardware
Topic: 750C HDD doesn't spin up
Replies: 7
Views: 4614

Re: 750C HDD doesn't spin up

Did you also try to boot from a diskette? Yup, works fine. is the drive detected by bios? Nope, the only sign of something being connected there is the half-lit HDD indicator LED. AFAIR it's possible to test HDD and Mobo in BIOS. From what you tell, I assume it's indeed something wrong with the mot...
by MooNWalker
Mon Sep 23, 2019 9:52 pm
Forum: ThinkPad Legacy Hardware
Topic: 750C HDD doesn't spin up
Replies: 7
Views: 4614

Re: 750C HDD doesn't spin up

First thing to do is to clean the contacts. The contacts look clean upon visual inspection, but I'll clean them anyway, with Deoxit. Did you try to plug into 750c any other HDD asembly? Yes. Same result - works in another machine, doesn't work in this one. I have another 750C motherboard, but that ...
by MooNWalker
Mon Sep 23, 2019 3:09 am
Forum: ThinkPad Legacy Hardware
Topic: Preserving rubberized coating - what environmental factors to avoid?
Replies: 15
Views: 5837

Re: Preserving rubberized coating - what environmental factors to avoid?

I then, rub Nivea hand cream into the rubberized coating, then wipe it off like I didn't want it on to begin with. I buff it afterwards, with a blue, lint free, paper shop towel shop towel. Not only does it restore the coating to almost new condition, it reduces fingerprints. Wait, do you mean it r...
by MooNWalker
Mon Sep 23, 2019 3:03 am
Forum: ThinkPad Legacy Hardware
Topic: Thinkpad 701cs Upgrade AMD 5x86 133Mhz
Replies: 11
Views: 4602

Re: Thinkpad 701cs Upgrade AMD 5x86 133Mhz

No, I didn't install any heatsink on the CPU. Yes it's hot but I think it is acceptably. It doesn't freeze if I don't use floppy drive or sound card. It had been tested it in Quake for an hour or more. It's a pity that you don't have photos of your board, they could help me to find what else should...
by MooNWalker
Sun Sep 22, 2019 3:34 am
Forum: ThinkPad Legacy Hardware
Topic: 750C HDD doesn't spin up
Replies: 7
Views: 4614

750C HDD doesn't spin up

Subj. Pulling the HDD in the caddy as a whole single module from 750C and plugging it into 755C it spins up fine, but plugging it back into 750C results in a half-lit HDD indicator and no HDD sound of any kind. I suspect that there is simply no power to HDD connector on the motherboard, but I can't ...
by MooNWalker
Sun Sep 22, 2019 3:20 am
Forum: ThinkPad Legacy Hardware
Topic: Thinkpad 701cs Upgrade AMD 5x86 133Mhz
Replies: 11
Views: 4602

Re: Thinkpad 701cs Upgrade AMD 5x86 133Mhz

I do have an AMD 5x86 133MHz board, got it from the very same badabumm. But it's a lot of hassle to open up the machine to get to it. 701C(S) is probably the most difficult to disassemble/reassemble ThinkPad I've worked on. The comments in the post mention heat, and mine does get quite hot after run...
by MooNWalker
Sun Sep 22, 2019 2:57 am
Forum: ThinkPad Legacy Hardware
Topic: Preserving rubberized coating - what environmental factors to avoid?
Replies: 15
Views: 5837

Re: Preserving rubberized coating - what environmental factors to avoid?

RealBlackStuff wrote:
Sat Sep 21, 2019 12:49 am
If all else fails, try this: viewtopic.php?f=28&t=121754
That I'm reserving for those machines that are already gooeying away, those that don't yet stick to everything that touches them I'd like to preserve the best I can.
by MooNWalker
Fri Sep 20, 2019 9:52 am
Forum: ThinkPad Legacy Hardware
Topic: Preserving rubberized coating - what environmental factors to avoid?
Replies: 15
Views: 5837

Preserving rubberized coating - what environmental factors to avoid?

I have multiple ThinkPad from early nineties, on some of them the rubberized coating is still in a very nice condition, and on some it's gone tacky and sticky and stays on whatever touches the machine. I have some newer machines (like 760-series) that are more tacky than my good 750C, and I broken 7...
by MooNWalker
Sun Aug 18, 2019 4:06 pm
Forum: Marketplace - Forum Members only
Topic: (WANTED) A31P QUALITY CONDITION
Replies: 12
Views: 1841

Re: (WANTED) A31P QUALITY CONDITION

I can only wish you good luck - other than m-models, A-series machines appear to be extremely hard to find, especially the p-models, and even more so in good condition. A2Xp/m/e commonly suffer from power problems, and A3X(p) commonly suffer from desoldered RAM slots. After trying to collect A20p th...
by MooNWalker
Fri Aug 16, 2019 4:10 pm
Forum: Marketplace - Forum Members only
Topic: WTB: 770X/Z hinges for 13.7" screen
Replies: 0
Views: 836

WTB: 770X/Z hinges for 13.7" screen

Subj. The mentioned models can have either 14" 1024x768 screen or 13.7" 1280x1024 screen, the later using wider hinges that serve also as spacers between the smaller TFT panel and the lid. Alternatively, I'm willing to buy a whole machine with a 1280x1024 13.7" screen.
by MooNWalker
Sun Aug 11, 2019 11:46 am
Forum: ThinkPad W500/W510/W520 and W700/W701 Series
Topic: W510: What is the maximum RAM supported?
Replies: 16
Views: 5888

Re: W510: What is the maximum RAM supported?

Hi MooNWalker, Many thanks for sharing your max RAM experience with us for your W510! Is there any chance that you can try to run your W510 under Win10/Win8/Win7 64-bit to confirm that W510 supports 32 GB RAM? If you do confirm, we'll amend above posting by "w0qj" to reflect this. Many thanks in ad...
by MooNWalker
Sun Aug 11, 2019 8:41 am
Forum: ThinkPad W500/W510/W520 and W700/W701 Series
Topic: W510: What is the maximum RAM supported?
Replies: 16
Views: 5888

Re: W510: What is the maximum RAM supported?

Hi MooNWalker, Many thanks for sharing your max RAM experience with us for your W510! Is there any chance that you can try to run your W510 under Win10/Win8/Win7 64-bit to confirm that W510 supports 32 GB RAM? If you do confirm, we'll amend above posting by "w0qj" to reflect this. Many thanks in ad...
by MooNWalker
Fri Aug 09, 2019 11:55 am
Forum: ThinkPad W500/W510/W520 and W700/W701 Series
Topic: W510: What is the maximum RAM supported?
Replies: 16
Views: 5888

Re: W510: What is the maximum RAM supported?

Apologies for necroposting.
I'm running a W510 unit with 840QM (720QM originally) and 32GiB RAM. No issues so far, but I'm running Linux and not Windows, if that even matters.
by MooNWalker
Mon Aug 05, 2019 9:13 am
Forum: Marketplace - Forum Members only
Topic: WTB: 755CX, A20p
Replies: 2
Views: 796

Re: WTB: 755CX, 760CD, 760XD, 770X, 770Z

hwattys wrote:
Fri Jul 19, 2019 10:21 am
Just picked up a couple boxes of vintage Thinkpads from Bill Morrow. I know there is a 755CDV and a 770X or Z and a 760C or CD among them. I have yet to unpack and catalogue but will be doing that this weekend. Will post back. Stay tuned.
I can hardly contain my excitement!
by MooNWalker
Sun Aug 04, 2019 11:58 am
Forum: Marketplace - Forum Members only
Topic: Bill Morrow collection
Replies: 21
Views: 6381

Re: Bill Morrow collection

Could you tell us what's the screen on the 770Z? Is it 14.1" 1024x768 or 13.7" 1280x1024?
by MooNWalker
Thu Jul 25, 2019 2:41 pm
Forum: ThinkPad Legacy Hardware
Topic: 701C replacement batteries
Replies: 15
Views: 5446

Re: 701C replacement batteries

I'm kinda cringing, because you really should have used a spot welder, though both battery ends need to be flat. I guess it at least works, but I'd still be leery of your method. Though I have noticed some of the battery circuitry is spotty; I built a 760 LiIon battery, and mysteriously, 4 of my ce...
by MooNWalker
Wed Jul 24, 2019 1:50 am
Forum: ThinkPad Legacy Hardware
Topic: 701C replacement batteries
Replies: 15
Views: 5446

Re: 701C replacement batteries

Did you rebuild your primary battery? I regret tossing my leaked NiMH batteries over a decade ago, as I still have a 701C and CS, though both are stored away. Yes. I used 20 AWG wire to solder standard AA NiMH Eneloop cells together. Macgyvered a stand for said cells to hold them in place during so...
by MooNWalker
Thu Jul 18, 2019 1:57 am
Forum: Marketplace - Forum Members only
Topic: WTB: 755CX, A20p
Replies: 2
Views: 796

WTB: 755CX, A20p

These two models in the subj are the only ones that I haven't been able to find on eBay in any working or repairable condition, and I need them to consider my collection complete. Does anyone have any of the models in subj, or knows someone who might have and be willing to part with one? Or maybe th...
by MooNWalker
Fri Jul 12, 2019 12:33 pm
Forum: Marketplace - Forum Members only
Topic: Positive feedback for FAIR Traders
Replies: 3048
Views: 626559

Re: Positive feedback for FAIR Traders

Props to ckaufman - I was at first reluctant to make a purchase with money order, but he did well on his promise, and the machine arrived extremely quickly. According to him this is his first sale, and it continues his good reputation as a buyer. Well deserved, sir!
by MooNWalker
Wed Jun 19, 2019 5:49 pm
Forum: ThinkPad R, A, G and Z Series
Topic: A20p/A21p/A22p motherboards
Replies: 1
Views: 4851

A20p/A21p/A22p motherboards

I found a place that still sells the subj. Problem is they've made a mess out of FRU numbers - e.g. an FRU for an A21p mobo (with Rage Mobility 128 and 16MiB video RAM) is assigned to a mobo for A21e with Rage Mobility M and 4MiB video RAM. Pretty much the only board that doesn't seem to have that m...
by MooNWalker
Fri Jun 14, 2019 6:12 am
Forum: Marketplace - Forum Members only
Topic: Wanted: Ultrabay 2000 floppy disk drive [FOUND]
Replies: 1
Views: 727

Wanted: Ultrabay 2000 floppy disk drive [FOUND]

Subj - eBay comes back only with hits on SuperDrives, and I've heard over the grapevine those have reliability issues.
by MooNWalker
Tue Jun 11, 2019 11:02 pm
Forum: Marketplace - Forum Members only
Topic: Wanted: A31p [FOUND]
Replies: 3
Views: 883

Re: Wanted: A30p, A31p

Hmm I do have an A30p and an A31p. However, both have some form of motherboard problem. A30p doesn't charge any of the batteries (main or Ultrabay), but drains the battery just fine (which makes me think it is not a fuse problem), while the A31p has the famous RAM slot contacts issue. But both unit...
by MooNWalker
Tue Jun 11, 2019 10:45 am
Forum: Marketplace - Forum Members only
Topic: Wanted: A31p [FOUND]
Replies: 3
Views: 883

Wanted: A31p [FOUND]

Subj. So long as the motherboard and cooling system are in working condition and the body is not damaged beyond normal wear and tear - I'm willing to buy.
by MooNWalker
Tue Jun 11, 2019 10:28 am
Forum: ThinkPad T40/T41/T42/T43 Series
Topic: ThinkPad T41p screen size confusion (did I get a T42p instead of the claimed T41p?)
Replies: 9
Views: 6768

Re: ThinkPad T41p screen size confusion (did I get a T42p instead of the claimed T41p?)

Thanks to RealBlackStuff I now have a true T42p (with a T41p sticker on it :-D ) on the cheap. Now to get a proper T41p like I was originally intending...
by MooNWalker
Fri May 31, 2019 5:05 am
Forum: ThinkPad T40/T41/T42/T43 Series
Topic: ThinkPad T41p screen size confusion (did I get a T42p instead of the claimed T41p?)
Replies: 9
Views: 6768

Re: ThinkPad T41p screen size confusion (did I get a T42p instead of the claimed T41p?)

RealBlackStuff wrote:
Fri May 31, 2019 2:46 am
And there is also a nice Sharp UXGA screen from the Dell 800 series, such as this: https://www.ebay.com/itm/Sharp-15-Inch- ... 1174880840
See also this: viewtopic.php?p=779362#p779362
That is extremely helpful, thank you!
by MooNWalker
Thu May 30, 2019 7:51 pm
Forum: ThinkPad T40/T41/T42/T43 Series
Topic: ThinkPad T41p screen size confusion (did I get a T42p instead of the claimed T41p?)
Replies: 9
Views: 6768

Re: ThinkPad T41p screen size confusion (did I get a T42p instead of the claimed T41p?)

If both of the above questions have positive answers, then my guess is I got a T41p with a T42p CPU in a 15" T42p body, which effectively makes it a 15" T42p machine. If that's the case, is there anything other than sourcing and price that's stopping me from installing a 1600x1200 display panel in ...

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