PPC Macintosh L2 Cache Modules

Section D - 7200/7300/7500/7600/8500/8600:
D42 - 1MB

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This is an interesting one from a PowerComputing Power Center Pro. According to PowerComputing its a 3.3V module so it won't work with other Macs, the Power Center Pro has a logic board jumper that allows the use of more standard 5V L2 cache modules. Also interesting is this module can operate on the Power Center Pro's 60MHz system bus.

Section C - 4400/6360/6400/6500/TAM:
A21 - 512KB


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Section A - 6100/7100/8100:
A05 - 256KB

Thanks @Kai Robinson

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A - 6100/7100/8100:
A03 - 256KB

B - 6200/6300:
B04 - 256KB

D - 7200/7300/7500/7600/8500/8600:
D07 - 288KB - This is an odd one!

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Power Macintosh 4400/200
MacBench 4.0 test results. Spoiler, more L2 cache is generally better, but doesn’t hold a candle to G3 upgrades.

• Mac OS 8.6
• VM off
• Appletalk off
• 160GB PATA HD
• Sonnet G3 400/1MB L2 cache slot processor upgrade used for last test

Power Macintosh 7300/200
MacBench 4.0 test results. Spoiler, more L2 cache is generally better, but doesn’t hold a candle to G3 upgrades.

• Mac OS 8.6
• VM off
• Appletalk off
• 64GB SSD on Sonnet 133 PATA PCI
• Sonnet G3 450/1MB processor upgrade (with no Logic board cache module installed) used for last test