For sale: Graphics Card for iMac When installed iMac would boot and just display black screen. Upgrade your iMac A1312 with this powerful ATI Radeon HD 5750 graphics/video card. With 1GB of GDDR5 memory, you'll experience stunning visual performance when gaming or running intensive graphic applications. The chipset manufacturer, ATI, ensures reliability and top-of-the-line quality. This graphics card is perfect for any computer builder looking to enhance their system and boost performance. All Sales Final/No Returns Please ask questions if any.
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