To whom it may concern, I just installed an 80 MHz osc. in place of the factory 66.6667 MHz osc. in my duo 280c and have been up and running for a few hours now with no observed adverse affects. The temperature is very similar. It varies according to how much the hard drive is running and how much the CPU is working, but I have not seen it go over 100 F yet. My house is cool today. I am sure it will run hotter out in my pickup where I mainly use it connected to a GPS receiver. Anyway, as Mad Dog said, it may be a roll of the dice whether or not any given 280c will run at 40 MHz (80 MHz osc.) but this one I am using works and with no downside as far as I can see. MacBench 1.1 gives it a processor score, floating point score (which the duo 280 doesn't even have) and most 'video related stuff' score of about 16 to 22 percent faster than stock. Greg ---------- Duo/2400 List, The friendliest place on the Net! A listserv for users and fans of Mac subportables. FAQ at <http://www.themacintoshguy.com/lists/DuoListFAQ.shtml> Be sure to visit Mac2400! <http://www.sineware.com/mac2400> To unsubscribe, E-mail to: <[EMAIL PROTECTED]> To switch to the DIGEST mode, E-mail to <[EMAIL PROTECTED]> Need help from a real person? Try. <[EMAIL PROTECTED]> ---------- Dr. Bott | 10/100 Ethernet for your 2400 is finally here! MPC-100 | <http://www.drbott.com/prod/mpc100.html> NineWire | If they are cool enough to host this list... Digital Solutions | ...you should check them out! http://www.NineWire.com/ Midwest Mac Parts ][ <http://www.midwestmac.com> After-market parts for Macs. ][ 888-356-1104 ][ MacResQ Specials: LaCie SCSI CDR From $99! PowerBook 3400/200 Only $879! Norton AntiVirus 6 Only $19! We Stock PARTS! <http://www.macresq.com>
