Mac CPU upgrade maker
has announced the iForce SL, a new CPU upgrade aimed at some second-generation “slot-loading” iMacs. The iForce SL incorporates a 900MHz processor and 512K of Level 2 Cache running at 900MHz as well.
PowerLogix explained that the iForce SL uses an IBM 750FX CPU. It’s compatible with eight different slot-loading iMacs that originally ran at 350-500MHz using a PowerPC 750 CPU and 512K of Level 2 Cache. It is not compatible with slot-loading iMacs that used the 750CX processor with 256K of Level 2 cache, however. If this alphabet soup of CPU models is confusing to you, PowerLogix maintains
on its Web site that will help you determine if your slot-loading iMac is eligible for this upgrade. The matrix breaks down models by type, color, intro date, speed and feature set to help you sort it out.
The iForce SL replaces the original CPU all together. PowerLogix includes a custom interposer board that maps the pinout of the original G3 processor to the revised pinout of the new IBM chip included with this upgrade. PowerLogix performs the upgrade itself — you’re required to pull your iMac’s motherboard and send it in. The company verifies the motherboard, performs the upgrade, and retests it prior to returning it to make sure it’s working okay.
A shipping package is sent out for the motherboard, and Fedex freight delivery is included in the price for domestic customers. PowerLogix warranties their work for a year, and said that the iForce SL upgrade is compatible with all software and hardware including Mac OS X.
The iForce SL is now available for ordering. It costs US$349 for US customers, including shipping; international customers pay $349 plus an additional freight charge based on location.