Timeline for How to determine IBM USB 6 pin header pinout?
Current License: CC BY-SA 4.0
22 events
| when toggle format | what | by | license | comment | |
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| Jan 21, 2019 at 0:37 | vote | accept | Molasar | ||
| Jan 19, 2019 at 14:54 | answer | added | james | timeline score: 3 | |
| Jan 17, 2019 at 23:13 | history | edited | Molasar | CC BY-SA 4.0 |
added 198 characters in body
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| Jan 17, 2019 at 23:08 | history | edited | Molasar | CC BY-SA 4.0 |
added 198 characters in body
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| Jan 17, 2019 at 22:34 | comment | added | Molasar | @SunnyskyguyEE75 Have updated original question with readings, etc. | |
| Jan 17, 2019 at 22:34 | history | edited | Molasar | CC BY-SA 4.0 |
Added readings
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| Jan 17, 2019 at 19:07 | comment | added | D.A.S. | What voltages,resistance on each pin? you can see 100 Ohms?? and a cap.or polyfuse? and series R? | |
| Jan 17, 2019 at 18:11 | comment | added | Molasar | @SunnyskyguyEE75 Out of stock. No price yet. They will ask IBM. Here's a pic of the servers: scontent.fmex11-2.fna.fbcdn.net/v/t1.0-9/… | |
| Jan 17, 2019 at 18:00 | comment | added | D.A.S. | Ask the merchant | |
| Jan 17, 2019 at 17:58 | comment | added | Molasar | @SunnyskyguyEE75 One has 3GHz CPU and the other 3.55GHz CPU. maximummidrange.com/46K7435.html also shows the cable but both connectors are different. | |
| Jan 17, 2019 at 17:50 | comment | added | D.A.S. | cool.. 800MHz RAM? 3GHz CPU? 112it.com/p/46K7435 | |
| Jan 17, 2019 at 17:47 | comment | added | Molasar | @jsotola The IBM part number is 46K7435 but I've seen the same cable with different connectors... | |
| Jan 17, 2019 at 17:47 | comment | added | Molasar | @SunnyskyguyEE75 I got these machines locally for US$250 and US$325, both 8 core 32 threads, 32GB and 64GB RAM, etc. Running SuSE and Fedora perfectly. I jumped on them on the spot. Blazing fast database performance. | |
| Jan 17, 2019 at 17:46 | comment | added | Molasar | @KH, Yes, I am just limited to a multimeter. I'll try the method you mention. | |
| Jan 17, 2019 at 13:55 | comment | added | D.A.S. | OK. TY Marcus for keeping me honest. I wonder how where he found these 2 expensive machines. | |
| Jan 17, 2019 at 8:28 | comment | added | Marcus Müller | @SunnyskyguyEE75 That photo shows a cable assembly that definitely doesn't fit in this connector (just count the wires...) | |
| Jan 17, 2019 at 5:58 | comment | added | D.A.S. | ebay.ca/itm/… | |
| Jan 17, 2019 at 4:56 | comment | added | jsotola | do you know the part number for the cable? | |
| Jan 17, 2019 at 3:20 | comment | added | K H | Once you know which are power and ground you may be able to just connect the data wires both ways to see which one works. One of the answers to this question does not imply that devices will be damaged, but that is hardly a guarantee. I assume your measurement tools are limited to a multimeter? | |
| Jan 17, 2019 at 3:19 | comment | added | K H | You can start by attempting to find the ground pin. Power down the mobo obviously, and meter voltage (to confirm 0) and resistance to ground on all 6 pins. Hopefully one should have much lower impedance. For +5V, you can power the motherboard and meter voltage on all 6 pins, and the remaining 4 pins should be 2 data sets. Inspect thoroughly to figure out which of those 4 are paired with each other if you can, and hopefully someone around here has a method of determining data wire polarity. Devices may not detect if they're reversed, I'm just not sure of potential for damage. | |
| Jan 17, 2019 at 3:05 | review | First posts | |||
| Jan 17, 2019 at 4:54 | |||||
| Jan 17, 2019 at 3:00 | history | asked | Molasar | CC BY-SA 4.0 |
