Go for it ! Yes, you will see a significant speed boost, however, there's a catch. The PowerCenter board is set up for 3.3v cache, whereas the PTP board is 5v cache. There is a jumper on the PowerCenter board (although it may not be on every board) that allows a user to switch voltages for the cache dimm. You'll see a significant speed boost on all operations (ie 50% increase in speed) from the CPU, but not so much from the cache upgrade. This is because the 225 is a 604e CPU, with enhanced built-in L1 cache (128k v 64k) over the 150 mHz 604 CPU. The L1 cache and L2 cache dimms speed up repeat operations, and the larger the cache dimm, the more operations can be stored in cache rather than the CPU having to access the HD for repeat info, a slower operation. For that reason the increase to 1mB L2 cache from 512k will be less noticeable than the CPU upgrade. If it's any incentive, the 225 604e mHz upgrades used to run around US$995 (new) and the 1mB cache US$125 (new) when the PowerCenters were still selling.
Cheers...Michael >I have a Power Center 150 with a 150mHz processor(of course), and a 512k >cache SIMM (336mb RAM, OS8.6). I have the opportunity to buy the following: > >Original 604e 225MHz daughtercard, pulled from a PowerTower Pro 225. >Original 1MB L2 cache, pulled from same PowerTower Pro 225. >(Seller is asking $20 for CPU and $20 for cache, or $35 for both) > >Any problem with these working in my Power Center? Will I see a significant >speed boost? > >Since I subscribe to the digest version of this list, I'd appreciate your >cc'ing your reply directly to my e-mail address. > >Thanks! > >Saul Broudy -- Power Computing is sponsored by <http://lowendmac.com/> and... 123Inkjets.com <http://lowendmac.com/ad/123inkjets.html> Support Low End Mac <http://lowendmac.com/lists/support.html> Power Computing list info: <http://lowendmac.com/power/list.html> --> 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://www.mail-archive.com/powercomputing%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
