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Apple Computing Products:
macOS - Desktop Hardware
cpu upgrade questions
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<blockquote data-quote="Geeky1" data-source="post: 521066" data-attributes="member: 34442"><p>The G4 is not directly comparable to an x86 CPU, the architecture is different. <strong>Generally</strong> speaking, it seems to be equivalent to an equally-clocked P3, but as I said, it's not an x86 processor, and it's running on completely different chipset and O/S so it's very difficult to assess the performance of the CPU itself relative to an x86 processor like what is found in virtually all Windows boxes.</p><p></p><p>And no, you can't drop <strong>any</strong> dual CPU card in that machine, at least not easily. You'll have to desolder the CD-ROM IDE port and use a PCI IDE card. Just about the only CPU upgrade you're going to get for that machine that's practical is going to be a 3rd party card.</p><p></p><p>The Gig-E board wouldn't necessarily be a worthwhile upgrade. A QS or DA board would, but those are unlikely to be a drop-in fit. They also have different power supply requirements and you'll have to figure out how to heatsink the chipset, which is mounted on the back of the board. And that's not going to be easy unless you have access to a machine shop or are very good with working aluminum, because you'll need to accurately shape a little heatspreader to sandwich between the chip and the case, using the EMI shield on the side panel as a heatsink. I don't know why you're looking to upgrade just for the AGP slot, though... a Radeon 9800 will work in a 2x slot.</p><p></p><p>In short, all of what you're asking can be done, but unless you've got a <strong>lot</strong> of experience doing serious modifications to PCs, you probably won't find it very easy to do.</p></blockquote><p></p>
[QUOTE="Geeky1, post: 521066, member: 34442"] The G4 is not directly comparable to an x86 CPU, the architecture is different. [B]Generally[/b] speaking, it seems to be equivalent to an equally-clocked P3, but as I said, it's not an x86 processor, and it's running on completely different chipset and O/S so it's very difficult to assess the performance of the CPU itself relative to an x86 processor like what is found in virtually all Windows boxes. And no, you can't drop [b]any[/b] dual CPU card in that machine, at least not easily. You'll have to desolder the CD-ROM IDE port and use a PCI IDE card. Just about the only CPU upgrade you're going to get for that machine that's practical is going to be a 3rd party card. The Gig-E board wouldn't necessarily be a worthwhile upgrade. A QS or DA board would, but those are unlikely to be a drop-in fit. They also have different power supply requirements and you'll have to figure out how to heatsink the chipset, which is mounted on the back of the board. And that's not going to be easy unless you have access to a machine shop or are very good with working aluminum, because you'll need to accurately shape a little heatspreader to sandwich between the chip and the case, using the EMI shield on the side panel as a heatsink. I don't know why you're looking to upgrade just for the AGP slot, though... a Radeon 9800 will work in a 2x slot. In short, all of what you're asking can be done, but unless you've got a [b]lot[/b] of experience doing serious modifications to PCs, you probably won't find it very easy to do. [/QUOTE]
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Apple Computing Products:
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cpu upgrade questions
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