- #Smcfancontrol mac 10.11.6 driver
- #Smcfancontrol mac 10.11.6 trial
- #Smcfancontrol mac 10.11.6 series
Replaced that board at my cost and worked for a few days and than problems returned.
#Smcfancontrol mac 10.11.6 driver
AHT passed fine also, but repair shop said it had to be LED driver board. Apple had a recall on my iMac video card, and of course at the repair shop, it passed the test fine. If I removed that driver, the iMac screen worked in low res mode without acceleration just fine.
#Smcfancontrol mac 10.11.6 trial
Through some trial and error, I was able to isolate loading a specific AMD video driver. Using an external monitor worked perfectly. Over time it started occurring more and eventually I lost the screen completely. From from the beginning, I would see random screen issues on a few rare occasions. I had a very similar problem with an iMac. Sorry for the confusion, I disagreed with the Apple Repair technician. Cleaning the fan and the heat pipe and doing a clean OS X reinstall fully solved that high temperature problem, but I suppose the logic board could already have been damaged during the time when the computer was running hot. I had not heard of "re-flowing." What an amazing idea! Over the time when the MacBook Air display problem was developing, it was running very hot (based on the felt temperature of the case bottom). Was that AHT result later proven to have been correct - even though you had disagreed with it? In other words, is it wise simply to accept an AHT result without questioning it? If so, then what should I make of the AHT result for my MacBook Air? The AHT twice reported "No trouble found" when in fact there was "trouble." Might that be explained by the trouble then being intermittent - so the trouble simply was not manifesting both times when the AHT was run? Or, if the logic board was not then OK, should the AHT have found that even if the problem was intermittent?
Regarding the time when you "disagreed" with an AHT result, I'm not sure that I understand. I hope you have patience for more questions! Headrush, thanks for your reply and suggestions. Now, I can no longer run the AHT – because the built-in display has completely failed and it appears that the AHT is unable to display on an external monitor. Both times, the AHT reported "No trouble found." However, at that time the problem with the built-in display was intermittent, so the AHT might only have reported that there was "no trouble" at that particular moment. The Apple Hardware Test was run, in both its quick version and its extended version, before the built-in display failed completely. However, the external monitor displays 100% normally, so I am not yet convinced that the diagnosis of the Apple-Authorized Repair people is correct. Given that the most expensive components on the logicboard (GPU, upgraded CPU and upgraded RAM) are all soldered in place and are thus not swappable, a new logicboard is not (I think) an economic solution for a computer from 2010. Headrush, thanks for your reply and suggestions.Īpple-Authorized Repair people have already opined that the NVIDIA GPU is "loose" on the logicboard – and that the logicboard therefore needs to be replaced. (b) not related to logic board components, The built-in display now has no back-light, and shining a flashlight through the Apple logo on the lid suggests that either (1) no video signal is reaching the built-in display, or (2) the built-in display is not displaying the video signal.ĭo the above observations provide a diagnosis that the problem is. The built-in display is no longer detected by the computer.
#Smcfancontrol mac 10.11.6 series
Over a period of weeks, the built-in display went though a series of death throes: first occasionally flickering, then occasionally showing line patterns, then occasionally showing light patterns, then becoming all whitish gray all the time, and finally becoming all black all the time. However, an external monitor attached by a "Mini DisplayPort to VGA adapter" displays 100% normally.
With my MacBook Air (model A1370, late 2010), the built-in display does not work.
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