I DID do it! Put a 64meg (I think) sd100 chip in my PM7500 and powered up. Had a few probs like the floppy drive wouldn't work and ram doubler died. So I removed the chip, booted back up and reinstalled ram doubler and everything has been fine since. When I found out that the ram ran at different power (3.3v instead of 5v?)I count myself very lucky my mac is still alive and well.
I had the (na�ve?) thoguht that the only difference between the chips was the position of the gaps to prevent pc and mac chips being interchanged and to artificially keep seperat prices for the chips on the market....oops. On 2/11/03 9:26 PM, "(PCI PowerMacs)" <[EMAIL PROTECTED]> wrote: >> Date: Tue, 11 Feb 2003 10:04:46 +0800 >> From: Charlie Reyes <[EMAIL PROTECTED]> >> Subject: Re: SDRAMs for PM 4400 (7220)? >> >>>> This may have been posted but can 3.3 volt PC-66 or PC100 SDRAM DIMMs work >>>> on PM4400s? Specs call for 3.3 v EDO memory. > >> Someone here was adventurous enough to attempt it - he found SDRAM's slots >> alignment a few millimeters off-center with the DIMM sockets. He took a >> small rounded file to give extra clearance. When he powered on the DIMMs >> started smoking and ruined the motherboard at the same time. > > The fellow who tried that experiment, did he do that in a 4400? I've > got a 9600 board here which someone did something similar to, and the > DIMM socket in question in burnt. I'm not sure if the memory > controller is history as well. Hopefully it would just kill the > D-Path controller and not the Hammerhead. > > Jeff Walther > > -- 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
