PowerLogix and Other World Computing have announced the availability of new 900MHz PowerForce 750FX G3 upgrade for PCI- based Macs including PowerMac 7300, 7500, 7600, 8500, 8600, 9500 and 9600 models from Apple, as well as select Power Computing and Umax clones. The new upgrade includes 512K of L2 cache running at 900MHz for $US139. Also available is the 1GHz PowerForce 750GX G3 (including 1MB of L2 Cache for $209.99. Both models also feature a built-in fan sink to aid CPU cooling, fail-safe protection circuitry, CPU Director software and compatibility with add-on PCI cards.