I ordered a PowerBook 145b off of eBay a few days ago, I did'nt get it yet, but I'm thinking already. The specs on the machine are: 25Mhz 68030, 8MB RAM, 80MB hard drive, 1.44MB SuperDrive, and the 1 bit passive matrix screen. It has System 7.1 on it already, but will System 7.5.3/.5 run good on it? I want to have the maximum amount of compatibility without taking a huge dump on the speed factor. Would an application like RAM Doubler help in this situation? What about RAM Charger? Thanks.
IIRC, a 68030 will run everything up to 7.6.1. I ran 7.1 on my IIci for a while, but went to and settled on 7.6.1, but I had 28MB RAM and a 230MB HD. 7.6.1 might be a little much on an 8MB Mac. Not sure how much of a lift you'll get past 7.1 - it ran pretty well on older 0x0 Macs. I don't think 7.5.x will take up much more RAM, although running OT instead of MacTCP will take more RAM. Since 7.5.3/.5 are free from Apple for the downloading, it should be pretty easy to try it out and then go back to 7.1 (just keep the 7.1 System Folder around by doing a Clean Install).
You can also add items to 7.1 to make it more like 7.5; see here
http://macfaq.org/software/macos.shtml
and scroll to the bottom for more info. You can also add the following 3rd party apps to improve 7.1's capability:
BeHierarchic extensions manager pasteitnotes (like Stickies) Scrollability superclock windowshade
RAM Charger seemed to actually help more than RAM Doubler on the Macs I've used it on, but YMMV. RAM Charger lets you allocate less RAM initially and then the application can take more if needed (and if it's available). RAM Doubler uses a type of VM with your HD to get the extra "RAM" - with the corresponding hit in speed. You can use them together - they are not mutually exclusive. Real RAM is always better, but I don't know if the 145b can take more than 8MB.
Regards,
Bob Eye Dallas, TX
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