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Search found 18 matches

by zephray
Mon Aug 17, 2020 9:32 pm
Forum: 51nb and other modded Thinkpads
Topic: [Idea] Intel NUC boards in Thinkpads?
Replies: 46
Views: 5165

Re: [Idea] Intel NUC boards in Thinkpads?

Unfortunately still no idea how to make trackpad work. Looking at the connector there appear to be 3 + 4 + 4 traces from trackpad alone.. Easier to replace whole trackpad as a whole?.. How easy?.. on R60/T60.. There are T61 schematics online, you can find the pinout there. The touchpad connector ha...
by zephray
Mon Aug 17, 2020 9:08 pm
Forum: Marketplace - Forum Members only
Topic: LF: xiphmont's LED driver board (TLD)
Replies: 19
Views: 2653

Re: LF: xiphmont's LED driver board (TLD)

In the TLD3 board design, the feedback resistor is chosen as 0.332 ohms, with 0.2V of the reference voltage, this should translate to a 0.2/0.332=0.6A or 600mA, this is also confirmed by his own description on the website. He also mentions the LED backlight draws 4.8W at 600mA current, this means th...
by zephray
Mon Aug 17, 2020 8:33 am
Forum: 51nb and other modded Thinkpads
Topic: [Idea] Intel NUC boards in Thinkpads?
Replies: 46
Views: 5165

Re: [Idea] Intel NUC boards in Thinkpads?

Heatsink might be the one biggest challenge. I am not aware of any cheap heatsink customization/prototype/manufacturing sort of service online. For the circuits, things should be fairly straightforward, we need a battery charger chip, a DC-DC converter chip, and a microcontroller for power managemen...
by zephray
Mon Aug 17, 2020 8:16 am
Forum: Thinkpad X60/X61 Series incl. Tablets
Topic: Project Report: X61/X61s CPU Upgrade
Replies: 5
Views: 3279

Re: Project Report: X61/X61s CPU Upgrade

He he so you did use a pre-heater after all :) How did you go about interposter board though? Did you first BGA it on both sides and then put on the motherboard? It would seem that while doing so you'd melt solder balls on top side first? So they were liquid while you were setting the interposter b...
by zephray
Sun Aug 16, 2020 5:52 pm
Forum: Thinkpad X60/X61 Series incl. Tablets
Topic: Project Report: X61/X61s CPU Upgrade
Replies: 5
Views: 3279

Re: Project Report: X61/X61s CPU Upgrade

Breathtaking experience, thanks so much for sharing. Really impressive. So you actually managed both CPU removal and two BGA installations with a hot air gun only? I am also surprised it worked. I am using a hot air gun and a small board preheater (only covers half of the motherboard). None of them...
by zephray
Sun Aug 16, 2020 10:17 am
Forum: Thinkpad X60/X61 Series incl. Tablets
Topic: Project Report: X61/X61s CPU Upgrade
Replies: 5
Views: 3279

Project Report: X61/X61s CPU Upgrade

0. Introduction ThinkPad X61 is a classical machine, along with T61 they are the last 4:3 ThinkPads made by Lenovo. I bought my X61s used in 2010 (I simply couldn't afford it back in 2007 when it first came out) and keeps using it as my main laptop (I have a much more powerful desktop PC for most o...
by zephray
Fri Sep 28, 2018 5:46 am
Forum: Marketplace - Forum Members only
Topic: Selling off some of my ThinkPad collection
Replies: 25
Views: 8138

Re: Selling off some of my ThinkPad collection

ThinkPad560X wrote:
Thu Sep 27, 2018 11:49 pm
I don't know I never opened it up. where is the rom module at?
I remember it is in one of the slots in the back, the place where normally RAM would go on other thinkpads.
by zephray
Thu Sep 27, 2018 6:09 pm
Forum: Marketplace - Forum Members only
Topic: Selling off some of my ThinkPad collection
Replies: 25
Views: 8138

Re: Selling off some of my ThinkPad collection

I am interested in 701C, PS/2 700 and 560. Can you post some pictures or send them to me? Thank you.
by zephray
Sun May 13, 2018 4:05 am
Forum: Marketplace - Forum Members only
Topic: WTB IBM PC110
Replies: 31
Views: 9696

Re: WTB IBM PC110

Somewhat as an aside: what exactly is the failure/effect/environmental cause of the LCD panels getting destroyed seemingly just due to age? I have never seen, with any computer except a PC110, the type of damage that these screens often seem to have. For example, this unit was on Yahoo Auctions , a...
by zephray
Sun May 13, 2018 1:03 am
Forum: ThinkPad Legacy Hardware
Topic: Replacement cpu/gpu pcb for TP600X 2645-850
Replies: 8
Views: 3903

Re: Replacement cpu/gpu pcb for TP600X 2645-850

If you want to buy a 600X, I can offer to sell you one. It is a 600X with 500MHz PIII processor and 576MB screen. It is in working condition but rough shape. Asking for US$100 not including shipping from PA.
by zephray
Tue Apr 24, 2018 5:00 pm
Forum: ThinkPad Legacy Hardware
Topic: Thinkpad 750/755C/360 Battery pinout
Replies: 5
Views: 3463

Re: Thinkpad 750/755C/360 Battery pinout

Thinkpad4by3 wrote:
Tue Apr 24, 2018 9:29 am
12V from the battery or 12V from the outside? I wonder if it isnt sending the "smart data" so it is complaining.
From the outside, not the battery.
by zephray
Tue Apr 24, 2018 8:00 am
Forum: GENERAL ThinkPad News/Comments & Questions
Topic: Searching for old Thinkpads is a royal pain now.
Replies: 15
Views: 5840

Re: Searching for old Thinkpads is a royal pain now.

Though lenovo didn't made something like W710 or W730, 710T and 730TE are almost impossible to find now.
by zephray
Tue Apr 24, 2018 7:43 am
Forum: ThinkPad Legacy Hardware
Topic: Thinkpad 750/755C/360 Battery pinout
Replies: 5
Views: 3463

Re: Thinkpad 750/755C/360 Battery pinout

Just some addition. My 750C would run with 12V power supply, but 755C would not.
by zephray
Thu Apr 05, 2018 4:55 pm
Forum: ThinkPad Legacy Hardware
Topic: Looking for info on the Thinkpad 240Z
Replies: 12
Views: 7586

Re: Looking for info on the Thinkpad 240Z

You can simply replace it with a 240's or 240X's US English keyboard. That's what I did for my i Series 1124. Well I guess probably WorkPad Z50's keyboard is also compatible? Haven't tried yet, but they looked the same (except different labels on function keys). By the way, I think one "drawback" o...
by zephray
Sat Mar 31, 2018 7:42 am
Forum: GENERAL ThinkPad News/Comments & Questions
Topic: Recently got a ThinkPad 800
Replies: 1
Views: 1537

Recently got a ThinkPad 800

Just bought a ThinkPad 800 (Type 6020) from China. It was in a very rough shape and missing the top module (a camera?), screen seems to be dead and no power supply. Seller said that he could not test it and selling it as is, asking for around $50. I bought it right away. See the original posting if ...
by zephray
Mon Mar 26, 2018 10:52 pm
Forum: Marketplace - Forum Members only
Topic: WTB: ThinkPad 860
Replies: 30
Views: 6617

Re: WTB: ThinkPad 860

If you haven’t got it yet and interested in getting one from China, I will pay a visit to China in May, and I could probably help you get one.
by zephray
Mon Mar 26, 2018 10:48 pm
Forum: Marketplace - Forum Members only
Topic: Cheap/FREE! Old Thinkpads and Parts - You pay shipping.
Replies: 22
Views: 6395

Re: Cheap/FREE! Old Thinkpads and Parts - You pay shipping.

Are they still available? Interested in X201 or X301 is any of them is still there...
by zephray
Mon Mar 26, 2018 11:21 am
Forum: ThinkPad Legacy Hardware
Topic: Looking for info on the Thinkpad 240Z
Replies: 12
Views: 7586

Re: Looking for info on the Thinkpad 240Z

I got a 240Z several years ago. The keyboard was bad but I replaced it with a 240 keyboard and it works fine now. Mine comes with a 600MHz PIII, internal Ethernet, and an XGA screen. It uses the same sound card and graphic card as the 240X and operating system, drivers are basically directly compati...

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