First post, by SodaSuccubus
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So I found a dismantled early Compaq socket 5 based machine, a"Compaq Presario 7170"in storage and decided to make it complete again.
http://www.uncreativelabs.de/th99/m/C-D/33436.htm
Here's a spec sheet for its motherboard.
I'd like to toss a P133 or 166 in the machine but unfortunately can't seem to get it running at full speed. Only 100mhz max.
I found another thread here about someone else apperently trying to do the same thing and came across this post:
SSTV2 wrote on 2019-09-18, 02:23:Soldering isn't even necessary. You can just wrap a single wire strand around Vss (ground) and a BF0 pin to set CPU multiplier t […]
Soldering isn't even necessary. You can just wrap a single wire strand around Vss (ground) and a BF0 pin to set CPU multiplier to 2x, inserting a thin wire between Vss and BF0 in the socket would also do the trick. I used this trick on a IBM 330-p75 to set CPU multiplier to 3x. If your 133MHz P1 was manufactured in 1997+, it has a good chance of running @ 166 or even 200MHz freq.
|BF0|BF1|mult.|
| 1 | 1 |1.5x |
| 0 | 1 |2.0x |
| 0 | 0 |2.5x |
| 1 | 0 |3.0x |*1 - high, 0 - low.
Does anyone have a visual on that?I have some copper wire, so do I just strip it a bit and stick that in the respective holes on the socket before putting in the CPU? Iv never done this before
Here's a picture of the socket on the board in-question: