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| projects:repair:powerbook_g4_17_1ghz:index [2009/02/23 14:08] – admin | projects:repair:powerbook_g4_17_1ghz:index [2009/02/23 14:17] (current) – admin |
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| ====== PowerBook G4 17 inch 1.0GHz -> 1.33GHz ====== | ====== PowerBook G4 17 inch 1.0GHz -> 1.33GHz ====== |
| This page describes an upgrade process of converting a Apple PowerBook, 17" 1.0GHz into a 1.33GHz version. After initially trying to repair the logic board((The internal display did not work despite the presence of background light.)) of the 1.0GHz version it seemed to make more sense to replace it with a logic board from a faster model. (With the advantage of a Gb network instead of 100 Mb.) The reason for this was that the repair of this computer with multilayer circuit board has taken considerable time and painstaking efforts, especially because it's lacking schematic diagrams.\\ Prices on Ebay and other dealers are reasonable. And after searching the internet a lot, it seemed that the mainboard (Apple calls it logic board) from the 1.0GHz model seemed to suffer quite frequently from the same problem, which was another reason not to repair this, and instead replace it. The replacement of the logic board inhibited a few other components to be replaced as well. A better title of this writing would be: **upgrading/converting a 1.0GHz 17inch PowerBook into a 1.33GHz PowerBook**. | This page describes how to upgrade/convert a 1.0GHz 17inch PowerBook into a 1.33GHz PowerBook. After initially trying to repair a faulty 1.0 GHz logic board((The internal display did not work despite the presence of background light.)) it seemed to make more sense to replace it with a logic board from a faster model. (With the advantage of a Gb network instead of 100 Mb.) The replacement of the logic board inhibited a few other components which needed to be replaced as well. Because prices on Ebay and other dealers like ifixit are reasonable it's much better than repairing a computer with a multilayer circuit board which would take considerable time and painstaking efforts, especially because it's lacking schematic diagrams. Added to that, after searching the internet a lot, it seemed that the mainboard (Apple calls it logic board) from the 1.0GHz model seemed to suffer quite frequently from the same problem anyway, which was another good reason not to repair this, and instead replace it. |
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| ==== PowerBook models ==== | ==== PowerBook models ==== |
| Searching the internet for more information about differences between the two models revealed a service manual from Apple, titled "PowerBook G4 (17-inch 1.33GHz) 16 September 2003"((Link: [[http://www.macbook-fr.com/IMG/pdf/pbg4_17_133.pdf]])). On page 2 it mentioned, in comparison with the 1.0 GHz model, the following information: | Searching the internet for more information about differences between the two models revealed a service manual from Apple, titled "PowerBook G4 (17-inch 1.33GHz) 16 September 2003"((Link: [[http://www.macbook-fr.com/IMG/pdf/pbg4_17_133.pdf]])). On page 2 it mentions some information, but not all. The real differences are: |
| * **Flex cable compatibility**\\ The sound and modem flex cables are not interchangeable with the original PowerBook G4 (17-inch) system. The main logic board will be damaged. The correct flex cables have the word “POWERBOOK G4 17" 1.33GHz ONLY.”((or “POWERBOOK G4 17" 1.33 GHz& 1.5 GHz”, as the 1.5 GHz version was not yet on the market by then, but Apple kept the same layout with the 1.5 GHz version.)) | ^ PowerBook 1.0 GHz ^ PowerBook 1.33 GHz ^ |
| * **No L3 cache**\\ L3 cache is not used on this system. So unlike the previous model, there is no blue thermal pad on the logic board facing the keyboard. | | | **Flex cable compatibility**\\ The correct flex cables should have the word “POWERBOOK G4 17" 1.33GHz ONLY.” or “POWERBOOK G4 17" 1.33 GHz& 1.5 GHz”, as the 1.5 GHz version was not yet on the market by then, but Apple kept the same layout with the 1.5 GHz version. | |
| * **Thermal module interface**\\ Thermal gel is now used on the ATI Mobility Radeon 9600 graphics chip as well as the Intrepid chip. The thermal module is different from the previous 17-inch PowerBook. It has a different interface feature for the graphics chip and now has three heat pipes instead of one. | | | **No L3 cache**\\ L3 cache is not used on this system. So unlike the previous model, there is no blue thermal pad on the logic board facing the keyboard. | |
| | | | **Thermal module interface**\\ Thermal gel is now used on the ATI Mobility Radeon 9600 graphics chip as well as the Intrepid chip. The thermal module is different from the previous 17-inch PowerBook. It has a different interface feature for the graphics chip and now has three heat pipes instead of one. | |
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| === Ordering parts === | === Ordering parts === |
