chemistry_geek
Registered
Slashdot has an article here:
http://slashdot.org/articles/02/01/17/1823233.shtml
about overclocking the hell out of a Pentium 4 to 3.5GHz using liquid nitrogen.
Now, being a graduate student in chemistry, I have access to LOTS of liquid nitrogen and a PowerPC G3 that normally runs at 500MHz. I'm wondering if I could do something similar with my IBM 500MHz G3 that the guys over in Finland did. I've overclocked it before to 600 Mhz with absolutely no functionality in Mac OS X (did not startup), Mac OS 9 ran very fast for about 20 minutes then every program crashed. But reducing the overclock to 550Mhz, it ran in Mac OS 9 for 30 minutes before memory errors started cropping up and I got a kernel panick in Mac OS X during startup. Just for your information, my IBM G3 500MHz is a replacement processor of the original Motorola G3 400MHz. I ordered it from http://www.allmac.com and since they sent me the WRONG heat sink, the same one for the 400MHz G3, I placed a fan on my original heat sink to keep the IBM 500MHz G3 cool. So my new IBM G3 runs cooler than my original Motorola 400MHz G3 and I was never concerned about overclocking it 100MHz above factory specs. Any ideas if liquid nitrogen might work with a really overclocked G3? What I'm asking is, will there be serious timing errors within the processor that will prevent a successful run at 78 Kelvin (-319.27 degrees Fahrenheit = -195.15 degrees Celsius)? I think this would be so cool to have a G3 overclocked to something like 800MHz (the max allowed with the logic board I have - involves moving some jumper switches).
http://slashdot.org/articles/02/01/17/1823233.shtml
about overclocking the hell out of a Pentium 4 to 3.5GHz using liquid nitrogen.
Now, being a graduate student in chemistry, I have access to LOTS of liquid nitrogen and a PowerPC G3 that normally runs at 500MHz. I'm wondering if I could do something similar with my IBM 500MHz G3 that the guys over in Finland did. I've overclocked it before to 600 Mhz with absolutely no functionality in Mac OS X (did not startup), Mac OS 9 ran very fast for about 20 minutes then every program crashed. But reducing the overclock to 550Mhz, it ran in Mac OS 9 for 30 minutes before memory errors started cropping up and I got a kernel panick in Mac OS X during startup. Just for your information, my IBM G3 500MHz is a replacement processor of the original Motorola G3 400MHz. I ordered it from http://www.allmac.com and since they sent me the WRONG heat sink, the same one for the 400MHz G3, I placed a fan on my original heat sink to keep the IBM 500MHz G3 cool. So my new IBM G3 runs cooler than my original Motorola 400MHz G3 and I was never concerned about overclocking it 100MHz above factory specs. Any ideas if liquid nitrogen might work with a really overclocked G3? What I'm asking is, will there be serious timing errors within the processor that will prevent a successful run at 78 Kelvin (-319.27 degrees Fahrenheit = -195.15 degrees Celsius)? I think this would be so cool to have a G3 overclocked to something like 800MHz (the max allowed with the logic board I have - involves moving some jumper switches).