Great — Also had the RAM contact problems. It was exacerbated by the fact that in a recent SSD upgrade and a second SSD in the DVD space with a fitting bracket the screws of the Mac back-pane were not all screwed in and others not fastened down to save time to try different configurations, the RAM seemed to become loose. The problem was gone as some mentioned above when a 4mmx4mm strip of foam as long as the RAM chips were laid on them to exert very little pressure. It is a late 2011 MacBookPro8,3 that also got a free MoBo replacement due to a manufacture failure in this series some years ago. The Mac may live a few years longer. BUT due to Apple’s OS policy to prevent upgrades to older HW, the last possible macOS is installed. The basic MacOS now has a VMWare Fusion host, with newer macOS Mojave, Catalina and Big Sur as Mac Client systems and Ubuntu Budgie paving the way away from Apple HW. Switching to just as good but pricier Asus N752VX-GC189T, after the new 2019 MacBookPro16,3 was tested — almost €4000 is a bit too much if more than one Laptop is needed. Linux Budgie or Elementary are good examples we tested and now use as Apple macOS alternatives for our purposes on the still good i7 64GB Ram on the MBP8,2. It runs just as fast as the Asus.
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Great — Also had the RAM contact problems. It was exacerbated by the fact that in a recent SSD upgrade and a second SSD in the DVD space with a fitting bracket the screws of the Mac back-pane were not all screwed in and others not fastened down to save time to try different configurations, the RAM seemed to become loose. The problem was gone as some mentioned above when a 4mmx4mm strip of foam as long as the RAM chips were laid on them to exert very little pressure. It is a late 2011 MacBookPro8,3 that also got a free MoBo replacement due to a manufacture failure in this series some years ago. The Mac may live a few years longer. BUT due to Apple’s OS policy to prevent upgrades to older HW, the last possible macOS is installed. The basic MacOS now has a VMWare Fusion host, with newer macOS Mojave, Catalina and Big Sur as Mac Client systems and Ubuntu Budgie paving the way away from Apple HW. Switching to just as good but pricier Asus N752VX-GC189T, after the new 2019 MacBookPro16,3 was tested — almost €4000 is a bit too much if more than one Laptop is needed. Linux Ubuntu Budgie or Elementary are good examples we tested and now use as Apple macOS alternatives for our purposes on the still good i7 64GB Ram on the MBP8,2. It runs just as fast as the Asus.
Great — Also had the RAM contact problems. It was exacerbated by the fact that in a recent SSD upgrade and a second SSD in the DVD space with a fitting bracket the screws of the Mac back-pane were not all screwed in and others not fastened down to save time to try different configurations, the RAM seemed to become loose. The problem was gone as some mentioned above when a 4mmx4mm strip of foam as long as the RAM chips were laid on them to exert very little pressure. It is a late 2011 MacBookPro8,3 that also got a free MoBo replacement due to a manufacture failure in this series some years ago. The Mac may live a few years longer. BUT due to Apple’s OS policy to prevent upgrades to older HW, the last possible macOS is installed. The basic MacOS now has a VMWare Fusion host, with newer macOS Mojave, Catalina and Big Sur as Mac Client systems and Ubuntu Budgie paving the way away from Apple HW. Switching to just as good but pricier Asus N752VX-GC189T, after the new 2019 MacBookPro16,3 was tested — almost €4000 is a bit too much if more than one Laptop is needed. Linux Budgie or Elementary are good examples we tested and now use as Apple macOS alternatives for our purposes on the still good i7 64GB Ram on the MBP8,2. It runs just as fast as the Asus.