Motherboard with FIXED 2.5x multiplier can I clip BF0 for 3x

Don't ask how to over-clock.
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rmay635703
Chip off the ol' block
Posts: 68
Joined: Thu Apr 04, 2002 6:25 pm

Hi I have a laptop motherboard that has a fixed 2.5x multiplier, I have gotten a socket 7 pin diagram once more and plan on hard wiring it to 3x.

I have a pentium 200mmx chip that has two "working" multipliers 2.5x and 3x

Anyway, is it possible to take 2.5x
BF0 - 0
BF1 - 0

and set it to 3x
BF0 - 1
BF1 - 0

by clipping the BF0 pin off this CPU?
Or do I have to run a wire to ground, I can't remember

Cheers
Ryan
KachiWachi
The New Guy
Posts: 1451
Joined: Fri Mar 29, 2002 10:32 pm
Location: Pennsylvania, USA

Hey Ryan -

If I remember right, we went around about this for an M520 over at the PCChips Lottery...I think you need to pull it high if I remember correctly... Go try a search over there for what we did.

Good Luck!!
rmay635703
Chip off the ol' block
Posts: 68
Joined: Thu Apr 04, 2002 6:25 pm

thanx, I will have to take a look, but...

That will involve clipping the pin enough so it doesn't contact the socket, then putting a wire to +3.3 I'm uncertain if I can do that.

The traces going to the socket are difficult to trace :) and I haven't figured out what goes where yet, so modifying the inputs will be sketchy at best.

Cheers
Rainbow
The UniFlasher
Posts: 3122
Joined: Wed Mar 20, 2002 4:16 pm
Location: Slovakia
Contact:

Search for resistors around which are connected to that pin in the socket. I guess that the mulitplier is hardwired using these resistors somewhere.
Patched and tested BIOSes are at http://wims.rainbow-software.org
UniFlash - Flash anything anywhere
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