My Reply follows quote. On 07/06/2005 13:44 [EMAIL PROTECTED] said: >Hi There, > >I need some advice and help. > >I want to upgrade My old faithfully 6200, so I have obtained a 6500 >Motherboard of ebay at a very good price. > >The number on the board is 820-0816c, this seems to make it a 225 Mhz >variation am I correct ?.
Not sure. The number on the board is not the part number used by Apple in their service parts database. Look for the Processor and nearby crystal oscillator. Should give a better "guess." There were, I believe, 6 different logic boards for the machine. >It has 1 x Comms, 1 x PCI, 1 x Cache, 2 x RAM slots. I was supplied >with 1 x 16 Mb of RAM, I do not think this RAM will work with this >board. > >In order to use it I need to install 2 x 64 Mb of basic RAM or more if >it will identify more than 128 Mb is this possible would I need RAM >slot doublers?. I will also need to install Cache RAM not sure what to >look for here size or type ?. 128MB is the max, unfortunately. I believe the cache card is 512K. >A PRAM battery should not be any problem I assume it is different than >the 6200 again what do I look for. Same battery as the 6200. The square 4.5v thing with the "pigtail." >Will the power supply of the 6200 work with the 6500 if it does will it >limit the use of the 6500 board ?. If I get my hands on a 6500 power >supply will it be a straight replacement for the 6200 or will some >other adjustment's be needed ?. Hmmm. Not sure. I know the board will slide right in (after swapping over the backplane) and the machine will boot up, but I seem to recall mention of possible "issues" with the power to the PCI interface. Not sure if the back plane from the 6200 will allow use of PCI cards. You may need one from a 5400 or 5500. >Are there any other problems that any one could think of that I have >over looked. Since the 6200 is a "NUBUS" based thing and the 6500 is PCI based, you will need a "single slot" PCI riser in order to use PCI cards. Such a riser was a part of the 6360. Can't seem to locate the part number just now. >Thanks > >John Abraham UK. Have fun! Ken -- 1st-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> 1st PowerMacs list info: <http://lowendmac.com/lists/1st-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]> List archive: <http://mail.maclaunch.com/lists/1st-powermacs/> --------------------------------------------------------------- iPod Accessories for Less at 1-800-iPOD.COM Fast Delivery, Low Price, Good Deal www.1800ipod.com ---------------------------------------------------------------
