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>rab777hp wrote:
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> ?why do you need to open your case?
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Apple released a new graphics card and I want to put that one in because it is twice as good.
You cannot upgrade the graphics card in the iMac. The GPU runs on a PCIe bus, but it is not a PCIe slot. The graphics card in the iMac is either hard wired to the logic board or on a daughter card; not a single after market GPU is or has ever been offered in a daughter card form-factor.
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Well that sucks and is complete BS and this is probably the last time I ever get an iMac but there are still other things I have in mind- like figuring out how to use the 24" HD screen for other things.
It is not BS. Apple designs and builds computers from the bottom up instead of purchasing pre-fabricated motherboards throwing them into pre-fabricated cases and slapping their logo on the front. The iMac is designed specifically for the consumer market and the vast majority of people in that market segment never upgrade their hardware. The iMac is not and has never been user-serviceable for that very reason. Outside of adding RAM, you cannot upgrade an iMac?s internals and that has near exclusively been the case since the first iMacs were introduced just over 10 years ago.
As to using your screen for other things, you cannot. It is a dedicated display for an all-in-one computer. Like any computer, the iMac does not have video inputs. You have options such as the Elgato EyeTV that
rab777hp mentioned for watching TV on your computer, but ultimately, it I a computer monitor, not a television screen and is therefore not designed for that use.
keinkampf wrote:
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Well my screen is better than my tv and so eventually I want to eventually be able to play xbox using my screen.
Computer displays have generally always been better than televisions. Standard tube televisions were designed to handle interlaced low-resolution images (< 640 x 480). Dedicated computer displays have almost always been progressive scan devices, so once personal computers could support resolutions of 640 x 480 (ca. 1983), or better, computers gained the ability to display better imagery as a result of design. While computers lacked the graphics muscle for television imagery early on, if you attached an analog computer display to a composite signal source (e.g., a VCR video output), the picture would blow away that of any television sold at that time. Of course with a 15-inch display being considered large and computer displays costing as much or more than televisions with significantly larger screens, using a computer display for television viewing was not a practical solution.
Even now at the dawn of the HD era, computer displays larger than 24-inches have greater resolution than HDTVs. That is a requirement for computer displays because computer displays 1) have static images much of the time and 2) are viewed at a much shorter distance than a television. Regardless of a computer display?s size, the user is always 1.5 to 2 feet away from the screen; therefore the optimal resolution for a computer display is determined by screen size; the larger the screen the more resolution is required to defeat pixelation. For televisions, different screen sizes determine optimal viewing
distances and not resolution. With the higher resolution of HDTV, the viewing distance for a television of a given screen size has been reduced when compared to a NTSC television.
In any case, computer displays are not designed to be used as televisions. So while there are means to use standalone computer displays as televisions, the dearth of TV-centric features makes it a wasted effort in most situations.