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G3 vs G4:
Chip Design Comparison
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Reader submitted specs and details on how the two processors compare in features and design.
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CPU Upgrades & Audio Applications
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Reader commentary on experiences with CPU upgrades in older Macs using Audio applications. Below the article are tips and other reader's experiences.
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XLR8's PowerControl
Utility
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Guide to the features of XLR8's bundled Powercontrol utililty included with their CPU Upgrades. (Originally Daystar's Npower Control). This utility reports RAM interleaving, PCI/SCSI configurations and tests CPU and Memory (and more). OS 9 users check for an update, as of late Dec. 1999 it was not OS 9 compatible (reporting 0MHz in some systems).
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Setup Guide:
XLR8 CarrierZIF
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Beginner's guide to installing a ZIF module in a CarrierZIF. Includes notes on switch settings and compatible ZIF modules.
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B&W G3 CPU Upgrade Install
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Although written for an XLR8 G4/400Z ZIF installation, other than the firmware patch, this info would also apply to G3 CPU upgrades.
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L2 Cache Slot G3 Upgrades
Owner Reports
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A page created to list some owner reports of L2 cache slot G3 upgrades after many reports of PCI video card problems
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PowerComputing Upgrades
Risky?
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Although very rare, there are several reader reports indicating that there is a risk of system failures from upgrading some PowerComputing systems.
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PPC Checker
Copper/Alum ID util
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Michiro Isobe's Utility reports if your G3 CPU is Copper or Aluminum based. Available exclusively at www.xlr8yourmac.com.
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OS X & Unsupported Macs
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Reader comments on installing OS X on officially unsupported Mac models. (See the FAQ's Operating Systems area for more info on models supported as well as the April 6, 1999 news)
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IBM vs Motorola G3 CPUs
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Reader comments and specs from Jan 99 debate on Copper CPUs, temperatures and performance.
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Q&A with Newer Tech
on G3 Bus Speeds
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A detailed explaination from Newer Tech on why a faster bus really may not help performance in older Macs with G3 CPU cards due to wait states and the memory timing design of the older Macs. (Thanks Kent Kanja!)
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Past, Present and Future Issues
of G3 CPU Card Upgrades
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A detailed explaination of the bus speed issues and pros/cons of the G3 CPU card upgrades.
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G3 Real World
Test Results
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Results of tests with dozens of G3 CPU card upgrades and systems (including Beige and Blue and White G3) in popular Mac applications. Is a B&W G3 really faster at most applications than an upgraded Mac of the same CPU speed?
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Photoshop 5 Performance
Macs vs PII/PIII
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Photoshop 5 tests between a various Macs (Apple BW/Beige G3s, Upgraded older Macs, 9600/350 overclock) and includes Pentium III 500MHz and dual PII 450 NT comparisons as well.
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Inside the PB G3
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A look inside and out of the new PowerBook G3. Also a illustrated guide to adding ram.
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Unreal Perf. Comparison - 512k vs 1MB cache
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Graphs showing the performance benefit of a 512K vs 1MB backside cache size G3 CPU upgrade with the popular 3D game Unreal.
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Unreal Performance - Before/After a G3 CPU Upgrade
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Illustrated comparison of the boost a G3 CPU Card Upgrade makes in Unreal.
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G3 CPU card 1MB vs 512K Cache Tests
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Photoshop filter tests show surprising results.
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Reducing Core Voltage on G3/450 Copper ZIF
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Tycho's illustrated article on how reducing the voltage of a G3/450 CPU ZIF module solved his stability problems. (There were certain Copper G3/450's that had stability problems, esp. in Beige G3s.) This article is for reference only - these modifications may not be reliable for your ZIF.
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More Voltage Boosting
of the IBM G3 CPU
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Ryan Tokarek's illustrated article on boosting the voltage of a G3 CPU. This article is for reference only - do not attempt these modifications.
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Voltage Boosting
the G3 ZIF CPUs
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Katsuya Uehara of Tokyo, Japan sent the details on modifications he made that allowed his PowerForce G3/400 ZIF to run 500MHz. This article is for reference only - do not attempt these modifications.
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G3 vs 604e
Audio Apps Tests
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Thad Brown tests a Umax S900 w/604e 200mhz card vs a PF G3 220/110 at various speeds. Surprising results.
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7500/PowerForce Tips
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This page has 1998 owner feedback and tips for 7500 owners installing a PowerForce G3 card. A must read before you upgrade. Also check the the FAQ for more CPU upgrade info.
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PowerForce/PowerCurve Tips
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This page has tips for owners of PowerCurve (Catalyst) motherboard based Macs (Powerwave, Powertower (not pro), PowerCenter/Pro) installing a PowerForce G3 card. A must read before you upgrade. [From 1998]
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Newer Tech's
MaxPowr G3 Control
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Is the 60ns memory setting faster?
Should I Disable my motherboard cache?
Those Questions answered in this test.
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