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Wizzard1
Joined: 05 Nov 2006
Posts: 930
Location: Boston MA USA
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 Posted: Mon Feb 25, 2008 6:27 pm Post subject: OH GOD!! I BROKE A PIN! PIII 1.4-s :-C Did I need it? |
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Broke a pin on one of my matched pair of PIII 1.4-S :-C
On the underside of the processor: pin TD0
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Do I cry? Do I replace it? Does it operate without it? Somebody Help!! |
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hugo929
Joined: 27 Oct 2006
Posts: 6163
Location: China
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Wizzard1
Joined: 05 Nov 2006
Posts: 930
Location: Boston MA USA
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| Posted: Mon Feb 25, 2008 9:11 pm Post subject: |
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I dont want to fry it  I believe it's the multiprocessor select pin... But I was reading an article about Pentium (Not II or III) and I didnt quite understand it.
Does anybody have a PIII pinout datasheet? |
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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| Posted: Mon Feb 25, 2008 9:33 pm Post subject: |
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http://download.intel.com/design/PentiumIII/datashts/24965705.pdf
If I'm not mistaken you broke Vss pin, so the chip may still work.
Edit: My mistake, I didn't see that you said that you broke TD0 pin.
Gennadiy
Last edited by gshv on Mon Feb 25, 2008 9:42 pm; edited 1 time in total |
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Mon Feb 25, 2008 9:39 pm Post subject: |
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Pin AN37, name TDO is the TAP output. I'm not sure what TAP is, but on page 23 of 24965704.pdf (IntelŪ PentiumŪ III Processor with 512KB L2 Cache at 1.13GHz to 1.40GHz Datasheet) it says:
| Quote: | | The CMOS, APIC, and TAP outputs are open drain and must be pulled to the appropriate level to meet the input specifications of the interfacing device. |
I don't know what TAP is, but there is only one TAP output pin, so I would say that it is unlikely to work properly (if at all) without that pin.
Edit:
I just checked the pinouts, and agree with Genna. The TD0 is on the other corner to the one you indicate, and the one you indicate does appear to be a Vss pin, which should be fine 
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Debs |
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Wizzard1
Joined: 05 Nov 2006
Posts: 930
Location: Boston MA USA
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| Posted: Mon Feb 25, 2008 11:05 pm Post subject: |
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Hmmmmmmmmm
Lemme double check...
Hazzah! I agree. Thanks for the datasheet 
I might try and re-attach it anyways... Solder keeps these on, right? Seems like a cold solder join, when looked at in it's broken state. |
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