| ID | | Article Title | Post Date |
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72 | 
| The Crescendo/Encore installer hangs, or crashes the system; occurs most often when run from the Sonnet installer CD. | May-12-09 |
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73 |
| What are the known incompatibilities with the Crescendo/PCI G4 700 and 800? | May-12-09 |
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74 | 
| Why can't I run Mac OS 9.2 on my computer upgraded with a Crescendo/PCI G4 800 (or 700)? | May-12-09 |
| When Apple created Mac OS 9.2, they decided to limit the number of machines supported to make the testing and qualification job easier. To accomplish this, they removed some specific parts of the operating system software that enabled operation on the Power Macintosh 9500 family and earlier machines; beige Power Macintosh G3 models are the oldest systems still supported under Mac OS 9.2.
It turns out that it is possible to add these sections of system software back in, and create a hybrid Mac OS 9.2 that will run with the 9500 family and the Crescendo/PCI G4 800 and 700. There is a web site, www.os9forever.com, which provides tools to do this for Mac OS 9.2.1 and 9.2.2. Unfortunately, Sonnet cannot provide support for this modification, although the Crescendo/PCI G4 800 (and 700) will operate with it. |
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169 |
| May I discard my original CPU after installing Sonnet's upgrade cards?
| May-07-09 |
| Sonnet recommends that you keep the original processor card even after installing our upgrade cards in case you ever need them. |
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|
171 |
| The speed indicated on the G3 or G4 chip on my Sonnet processor upgrade doesn't seem to match the speed of the upgrade I purchased. What's the story? | May-07-09 |
|
175 |
| The Crescendo/Encore installer hangs, or crashes the system; occurs most often when run from the Sonnet installer CD while using Mac OS 9. | May-07-09 |
|
218 |
| The computer's standard startup process takes noticeably longer after upgrading to any Mac OS 9.x system from Mac OS 8.6 or earlier. | May-12-09 |
|
228 |
| System will not finish start-up process. Hang or crash occurs before desktop appears. | Jun-23-09 |
| The computer's original Level 2 (L2) cache conflicts with that on the Crescendo/PCI card.
To fix this issue, remove the computer's L2 cache card. Since the Crescendo/PCI has its own L2 cache, the computer's L2 cache is deactivated once the processor upgrade is installed. There is no loss of performance or any other benefits when the original L2 cache card is removed.
Important Note: Be sure to take all precautions against static discharge during this process, or you may inflict permanent damage to part, or all of your computer.
In most Mac and Mac clone models, the L2 cache card is similar in appearance to a DIMM, and is usually located amongst or near the memory (DIMM) sockets. In most cases, it is clearly identified by markings on the motherboard, and its socket is offset from the others. In these configurations, there are no clips holding the card in place, so it should lift straight up and out of the machine. If the card has been in place for years, it may be difficult to extract, and care should be used to gently work the card out.
There are some models where the L2 cache card is inconveniently located, and in some cases, it is soldered to the motherboard and cannot be removed. Consult your computer's documentation for the location of the L2 cache. If it is soldered on, contact Sonnet's customer service at 1-949-472-2772 for further instructions. |
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229 |
| After installing my new Crescendo/PCI processor upgrade in a Power Tower Pro, I can hear the boot chime when I turn the computer on, but the video display never comes up. | May-12-09 |
|
230 |
| After installing a Crescendo/ PCI G4 700 or 800 MHz upgrade, I opened Apple System Profiler and it is reporting the processor type as unknown and the speed as 450 MHz. | May-12-09 |
| The G4 chips used to achieve the speeds of these processors were created long after Apple created the ROM\u8217 s that are used in those vintage machines. In addition, Apple System Profiler (ASP) has never been very good at reading non-Apple engineered processors in OS\u8217 s prior to Mac OS X. The ASP calculates the 450 MHz speed using multipliers and the logic board bus speeds known at the time it was created. The chips on these upgrades have a maximum multiplier of 16x. But, Apple System Profiler does not recognize this advancement.
For OS\u8217 s prior to Mac OS X, the Sonnet software installs a utility called Metronome. This utility can be found under the Apple menu after installation. Metronome will give complete and accurate specs of the processor that is installed in your machine. If you are running a supported version of Mac OS X, and have installed the latest Sonnet X Tune-Up software, you will see that Apple System Profiler reports the processor type and speed correctly. |
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231 |
| After following the instructions and installing both the Crescendo/PCI G4 700 or 800 MHz upgrade card and its included software into my computer, the video is distorted and my cursor is a rectangular block that cannot move more than halfway down the screen. | Jun-23-09 |
|
233 |
| G4 performance drops following Mac OS 9.x system software update. | May-12-09 |
| This is not a malfunction and is not related in any way to Sonnet upgrade products; this is the result of an additional Mac OS 9.x startup process that did not occur during startup in earlier Mac OS versions. There is a new "hidden" Mac OS 9.x feature called Startup Memory Tests in the Memory Control Panel, which defaults to the "On" setting. This adds time during a startup or restart, as all of the RAM installed in the computer is checked.
This issue affects any machine running Mac OS 9.x, with or without upgrades installed. The more RAM installed, the longer the test. Note that a Mac upgraded with a Sonnet G3 or G4 processor card gets through this process much faster than a "stock" machine.
Since this is not a malfunction, no solution is required. However, since RAM seldom fails after the first few days of regular use, you may turn this test off if a faster startup cycle is desired. To access this feature you must hold down the Command key and the Option key WHILE opening the Memory Control Panel. When the control panel opens, you will see a setting at the bottom of the control panel. Click the Startup Memory Tests\u8217 Off button, then close the Memory Control Panel. Be aware that from now on, when you start up or restart your computer, the Mac OS will NOT check your RAM. If in the future you suspect a memory problem and want to check your RAM, you will need to repeat this procedure and turn the Startup Memory Tests back on. |
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