r2tincan Posted February 20, 2017 Share Posted February 20, 2017 It's necessary for me to enable "Above 4G Decoding" so I can install my Thunderbolt card with 2x graphics cards. It looks like people with other boards aren't having a problem getting this to work. When I enable it, OSX boots up and the graphics turn to gobbledigook. With it disabled and all cards installed, the system will not POST. Anyone know how I can trouble shoot this? I tried a verbose boot and nothing looks out of the ordinary, the graphics get {censored}ed after PCI Configuration Begin. If I disable USB 3.0 completely I can boot into OSX. Thanks Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/ Share on other sites More sharing options...
Matthew82 Posted February 20, 2017 Share Posted February 20, 2017 I have the same problem with x99 Deluxe. Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2370369 Share on other sites More sharing options...
r2tincan Posted February 21, 2017 Author Share Posted February 21, 2017 I have the same problem with x99 Deluxe. Have you tried anything specific to troubleshoot? Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2370648 Share on other sites More sharing options...
Matthew82 Posted February 21, 2017 Share Posted February 21, 2017 Like You...Disabling USB ports Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2370684 Share on other sites More sharing options...
Matthew82 Posted February 27, 2017 Share Posted February 27, 2017 I menegage to boot OS X with 4G enabled and thunderbolt card. It is only possible if I disable gpu by adding fake id in clover. DPCIManager detect TB Card Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2374934 Share on other sites More sharing options...
r2tincan Posted March 5, 2017 Author Share Posted March 5, 2017 I menegage to boot OS X with 4G enabled and thunderbolt card. It is only possible if I disable gpu by adding fake id in clover. DPCIManager detect TB Card Zrzut ekranu 2017-02-26 o 22.14.54.png Say more? Which GPU are you using? Which motherboard and thunderbolt card? I have 2x GPUs Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2378847 Share on other sites More sharing options...
Matthew82 Posted March 6, 2017 Share Posted March 6, 2017 Asus x99 deluxe 3.1 Thunderbolt dual from Asus. 2X GPUs 290X. System with enabled 4G and TB only boot if I ad fakeid for my GPU and is running whiteout acceleration. Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2379426 Share on other sites More sharing options...
r2tincan Posted May 26, 2017 Author Share Posted May 26, 2017 Asus x99 deluxe 3.1 Thunderbolt dual from Asus. 2X GPUs 290X. System with enabled 4G and TB only boot if I ad fakeid for my GPU and is running whiteout acceleration. Say more? What does this mean? Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2430990 Share on other sites More sharing options...
Matthew82 Posted May 26, 2017 Share Posted May 26, 2017 Out dated. Now I updated OS X to 10.12.6 and Thunderbolt working with 4G. I using only firewire Focusrite audio interface (adapter TB>FW) Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2431022 Share on other sites More sharing options...
r2tincan Posted May 26, 2017 Author Share Posted May 26, 2017 Out dated. Now I updated OS X to 10.12.6 and Thunderbolt working with 4G. I using only firewire Focusrite audio interface (adapter TB>FW) Did it work also with 12.5? First round beta kinda scary for me Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2431475 Share on other sites More sharing options...
Matthew82 Posted May 27, 2017 Share Posted May 27, 2017 I can't run 4G and TB before 12.6 Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2431602 Share on other sites More sharing options...
r2tincan Posted August 19, 2017 Author Share Posted August 19, 2017 So I upgraded to the final build of 10.12.6 and I still can't get Above 4g decoding to work. I get to the apple logo, a halfway full load bar, and then no further loading. Ideas? Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2481587 Share on other sites More sharing options...
Mesgen23 Posted May 9, 2018 Share Posted May 9, 2018 Hey r2tincan, Did you ever get this solved? Link to comment https://www.insanelymac.com/forum/topic/321326-cant-get-above-4g-decoding-working-on-x99-e-ws/#findComment-2612999 Share on other sites More sharing options...
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