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#1 2005-03-03 2:46 pm
- paxswill
- Mmmmm...
- From: Where the "N" is for knowledge
- Registered: 2001-12-05
- Posts: 432
OC a Wallstreet
I'm thinking of overclocking my Wallstreet. I have a scratch processor that fried itself so I had to downgrade to 233Mhz from 300. I also want to up the bus speed on it from 66 to 83. To pull this off and not kill my laptop, I'm going to install another fan. I looked here but my processor looks different. Yet another snafu, when I last had to replace a component, the left speaker starts buzzing whenever the fan spins up. Thanks
Last edited by paxswill (2005-03-03 2:47 pm)
iMac: 500MHz G3, headless mod, 20GB main, 60GB media, 320MB RAM, Tiger (server)
MacBook Pro: 2.5GHz C2D, 250GB (160 for OS X, 60 for Vista, 15 for Ubuntu), 4GB RAM, Leopard (main)
20GB 4G iPod, Apple OS
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#2 2005-03-04 10:27 am
Re: OC a Wallstreet
I don't know exactly what you mean that yours looks different... but if you mean that the numbers silkscreened onto the board are different then that is still OK... Clock the PLL but leave the bus clock alone for now... at least that is what I would do/did.. anyway... the bus to CPU adjustments (aka PLL or CPU multiplier) are in the same corner as shown in the Paradise site... take a look at his chart... the inner row and the outer row are still likely the same on your CPU as laid out for the 233MHz clock xsss sxxx... the first series (xsss) is the inner row... the second (sxxx) the outer row... change the config so as to look like this: xsxs (inner row) sxsx (outer row). I just clocked a 233 to 300. It runs until heat gets it. I can web surf and listen to iTunes ect but with full screen iTunes visualizer running it crashes... still working out if I should clock back to 266 or if I can monkey around with some sort of alternate cooling (ie. cram a Pismo heat pipe into it somehow...a modified one that is).
Tips: use a good solder iron/pencil... heat controlled if you have one. A mag glass help as those resistors are so tiny... careful when you tug on them as you can lift a trace if you detach one end and not the other (but basically heat to one end then to the other frees them nicely). Tweasers are cool. I also clocked a 266 to 300 recently. I dropped one of the resistors on the floor and it was GONE!!! So... I used my silver-conductive pen to draw a bridge between the points. The stuff comes out quickly even though it ha a fine point (trace width of 1/32" OR SO IT SAYS)...practice on some scrap paper cause it goops. Otherwise it seems OK and offers only 0.2 ohms resistance. If you goop and try to scrape off the excess take care as some trace wires seem to pass under the gaps between the bridge points so don't scrape to deeply... uh... I did not need any additional solder as the old conntacts seem to have had suffucient... just heat and drop-place the resistor (0 Ohm resistors... uh... that is a bridge right... or a jumper).
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