![]() ![]() ![]() ![]() I did the same thing to an old iMac '06 17" also. Personally, I love stuff like that, but it likely sounds like living hell to most.īut it's easier for us to have them tell us what they have, then us trying to guess from what little they give us the last white 17" one) a few times and I've taken apart a slightly-older-than-yours 27" iMac once (for a neighbor whose son inadvertently stuck an SD card in the optical drive), and I do *not* recommend it unless you love taking apart crazy things like this that the guys at iFixit hate and have to write 60-step guides for. I've taken apart my poor old iMac (late 2006, e.g. If all else fails, you could upgrade that 3470 to a 3570 or 3770 (I doubt the K models are any better, considering you can't overclock) for ~$200 or ~$300. (Make sure to use a current development build too, buffer_storage was implemented a short while ago.) Nvidia's drivers on Windows/Linux will give you better results if you're willing to install one of those. VSH, pinned_memory, buffer_storage) aren't available on OS X, so there's an inherent performance impact just from using OS X's GPU drivers. OP: The 3470 shouldn't be *too* bad for Dolphin, but all the OpenGL buffer upload methods that give massive speed boosts (e.g. Mactracker 4.1.3 for iOS Download from the App Store Version 4.1.3 adds AirPods and details on the latest OS releases. Mactracker) around that can tell you this. Download for Mac OS X Release Notes: - Adds iMac (21-inch Late 2009) and iMac (27-inch Late 2009) - Adds Mac mini (Late 2009) and Mac m. ) and a mix of cross-platform/Mac-only apps (e.g. (01-20-2014, 09:02 AM)pauldacheez Wrote: FYI, forum support people, it doesn't take that much effort to pin down which i5 it is if you know what kind of Mac it is, what it's clocked at, and what GPU goes along with it. I managed to get two out by using just my nails to press in both barbs. For the other two I used neelde-nose pliers to carefully press the barbs together while pressing the plug back. No, according to the Apple database, both the 21.5 and 27 Late 2009 models cannot run anything newer than Mac OS 10.13.6. You don’t want to use too much force and damage them. The aluminium heat sink on the front is held by 4 black plugs that have a spring on the heat sink side and two barbs on the tip that hook behind the surface as soon as they are pressed through the board to the other side. Unfortunately, they stop when the logic board is taken out, while the most important is still to do: removing the old thermal compound, cleaning the surface of the GPU and other chips and heat sinks and applying new thermal compound between the heat sink and chips. IFixit has some clear pictures and instructions on how to take apart the Intel iMac 2006 that I used. This way, the iMac can’t overheat without the cooling fans getting uncomfortably loud. He uses SMC Fan Control to set the speed of the central fan to maximum and leave the fans for the hard disk and optical drives as low as they are per default. According to youtube user ‘casualtechs’ aka Mark Sicat, anything above 31✬ indicates a problem. Not surprisingly, around that temperature the computer becomes unstable. Within minutes it heats up to around 100✬, especially if you let it work a bit, for example by playing a video. The 17 and 20 inch models have a GPU soldered to the logic board, an ATY Radeon X1600 in this case.Īfter waking the iMac up, the GPU temperature immediately goes up very fast. All sensors indicated normal temperatures, except the one for the video card, or rather: GPU, because only the 24 inch model has a separate video board. I decided to first put the iMac back together so I could measure the temperature sensors with Hardware Monitor. I even found a video demonstrating a method first to resolder the pins of the GPU. Someone suspected the thermal conductor to be leaking. I found several cases in which the thermal compound needed to be refreshed. The bottom left fan had some dust on it, so I cleaned it, but heat sink ‘air tunnel’ on the top was as clean as a whistle. This could not have caused the problem.Ī problem with the heat sink is more likely. I carefully opened up the iMac and inspected two of the fans. SMC Fan Control is often used to keep the fans at a higher speed, to prevent heat problems. These kind of video problems are typical for iMacs from that period and are usually caused by heat problems and of course sometimes by bad hardware. I ran Mactracker to determine the exact model of iMac. Still, I did some research about this particular Mac model. The iMac was 7,5 years old then. Now it’s 8,5 years and it crashes more often and sooner then a year ago, so I decided to try and find out whether I can fix the problem myself.Īt first I was sceptical about overheating being the problem, because I didn’t even hear the fans and you’d think that they would at least rev up. My parents 20 inch first generation Intel iMac from early 2006 (A1174) began to show strangely garbled video on random parts of the screen, after a few minutes followed by a ‘frozen’ screen or spontaneous restart few minutes later.Īt first these glitches happend only on warm days. ![]()
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