In a message dated 9/23/02 12:21:39 PM, [EMAIL PROTECTED] writes:
<< Hi again, just read the most recent threads and realised that my chip is one of the aforementioned PC100 chips , the keys are the one space awaytho is is EDO DRAMM >> There are four keying combinations: 1) 5 volt RAM, 2) 3.3 volt RAM, 3) 5 volt cache, and 4) 3.3 volt cache. There may be others. PCxxx sticks are 3.3 volts ONLY, hence the difference in keying. Most early EDO and FPM is true 5 volt chips. Most late EDO and FPM is 3.3 volt chips, using an on-stick regulator(s) so as to operate from 5 volts. The 7200 was the only PCI Mac which *appeared* to make a provision for 3.3 volt sticks. The (unused) pads for the regulator and associated components are adjacent to the RAM slots. -- PCI-PowerMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | -- Sonnet & PowerLogix Upgrades - start at $169 | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> PCI-PowerMacs list info: <http://lowendmac.com/lists/pci-powermacs.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/pci-powermacs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
