Short version: My PowerMac 6500/275 sees 256K of L2 Cache although a 512K module is installed.
Long version:
I acquired my PowerMac 6500 some years ago and it has been an awesome machine. Although it is a 275 MHz version it only had a 256K cache module. I'm not sure why, but I wasn't the first owner so I figured maybe the previous owner had used one of the G3 upgrades and put the wrong module back in. Well, I found a Mac-friendly memory retailer who happened to have a 512K module for sale. I bought it.
Now, the 512K module I received has the same pin number and spacing as the 256K module installed but, as expected, is a bit taller and much more densely populated. There are 16 memory chips labelled IDT 71256 (32K) and 16 x 32K = 512K. This does appear to be a 512K module. When I install the module though, Apple System Profiler says 256K external L2 cache. >
Any one know why?
Long version:
I acquired my PowerMac 6500 some years ago and it has been an awesome machine. Although it is a 275 MHz version it only had a 256K cache module. I'm not sure why, but I wasn't the first owner so I figured maybe the previous owner had used one of the G3 upgrades and put the wrong module back in. Well, I found a Mac-friendly memory retailer who happened to have a 512K module for sale. I bought it.
Now, the 512K module I received has the same pin number and spacing as the 256K module installed but, as expected, is a bit taller and much more densely populated. There are 16 memory chips labelled IDT 71256 (32K) and 16 x 32K = 512K. This does appear to be a 512K module. When I install the module though, Apple System Profiler says 256K external L2 cache. >
Any one know why?