Gfreeman Posted March 21, 2023 Share Posted March 21, 2023 (Pardon me if I'm posting this in the wrong category) I have a friend with this PC configuration:PC 4th Gen:--------------Motherboard: ASRock B85M-HDSCPU: Intel Core i5-4460RAM: DDR3 1600mhz 2 x 4GB (8GB Total)GPU: NVIDIA GeForce GTX 1050 Ti (4GB)SSD: Samsung 850 EVO 500 GBI did a hackintosh to it's PC with MacOS Monterey. To take advantage of the Nvidia GTX 1050 GPU I applied the Opencore Legacy Patcher.The Apps I used were:- OpenCore 0.9.0 (with all relevant updated Kexts).- OpenCore Legacy Patcher 0.6.1I also installed Windows 10 on another partition on that same SSD, using rEFInd as boot manager.Everything works fine, except that the clock time has a very erratic behavior; you turn on the PC and the time could be late or ahead compare to actual time (happen to hours or minutes or both). Even gets to the point of having different times in the BIOS, Windows, and MacOS, at the same moment.As a note: I already config the windows Registry to use UTC time, but it didn't solve the problem.Also the CMOS battery is with its full charge capacity.Please can you help us? what do you think about it?Many thanks in advance.GreetingsPS. Pardon my english. I'm spanish speaker. Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/ Share on other sites More sharing options...
Cyberdevs Posted March 21, 2023 Share Posted March 21, 2023 @Gfreeman As far as I remember you're gonna need to use RTCMemoryFixup.kext to fix that issue on 4th Gen rigs to which fixes the BIOS reset. RTCMemoryFixup.kext.zip Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802629 Share on other sites More sharing options...
Gfreeman Posted March 21, 2023 Author Share Posted March 21, 2023 Cyberdevs, thank you very much. I'll soon test your recomendation and let you know. Thanks a lot again Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802630 Share on other sites More sharing options...
Slice Posted March 23, 2023 Share Posted March 23, 2023 Also it may be wrong FSB speed set by the bootloader. Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802684 Share on other sites More sharing options...
Gfreeman Posted March 24, 2023 Author Share Posted March 24, 2023 On 3/23/2023 at 5:59 AM, Slice said: Also it may be wrong FSB speed set by the bootloader. Hi, thx you for your reply. What means FSB? ....is it Front Side Bus ??? On 3/21/2023 at 9:04 PM, Cyberdevs said: @Gfreeman As far as I remember you're gonna need to use RTCMemoryFixup.kext to fix that issue on 4th Gen rigs to which fixes the BIOS reset. RTCMemoryFixup.kext.zip 12.37 kB · 3 downloads Hi, this fixed the time sinchronization between the BIOS and MAC, but Windows is still with weird behaviour with the time. Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802722 Share on other sites More sharing options...
Cyberdevs Posted March 24, 2023 Share Posted March 24, 2023 12 hours ago, Gfreeman said: Hi, this fixed the time sinchronization between the BIOS and MAC, but Windows is still with weird behaviour with the time. That's because windows uses GMT standard and macOS uses UTC. You can use the following reg edit files to turn the UTC time On or Off in Windows. (In order to fix the time sync issue you need to turn ON the UTC time settings reboot the system and sync the clock in windows.) Turn UTC Time On-Off - Windows.zip 1 Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802728 Share on other sites More sharing options...
Gfreeman Posted March 24, 2023 Author Share Posted March 24, 2023 9 hours ago, Cyberdevs said: Thats because windows uses GMT standard and macOS uses UTC. You can use the following reg edit files to turn the UTC time On or Off in Windows. (In order to fix the time sync issue you need to turn ON the UTC time settings reboot the system and sync the clock in windows.) Turn UTC Time On-Off - Windows.zip 745 B · 1 download Hello, yes, we already did that operation. It didn't solve the problem either. The time error (to clarify) is not that there are hours difference between mac and win, it is that the clock in win could have any hour with any minute different from mac. Example: Mac has 3:15 PM and Win has 5:45 AM. Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802743 Share on other sites More sharing options...
STLVNUB Posted March 24, 2023 Share Posted March 24, 2023 sounds a lot like my {censored}ed mb Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2802748 Share on other sites More sharing options...
Gfreeman Posted April 10, 2023 Author Share Posted April 10, 2023 Hi Problem still unsolved, this is a real weird symptom, and now the clock is frozen (stuck) in BIOS, time does not count, stay freeze in same hour:minute:second Could it be the quartz of the motherboard broken on some surt? Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2803404 Share on other sites More sharing options...
Gfreeman Posted April 11, 2023 Author Share Posted April 11, 2023 Thank you very much eSaF for your effort in such a very well explained guide, but we have done almost everything you wrote there, nevertheless I'll recheck that. Thanks a lot again. Greets. Quote Link to comment https://www.insanelymac.com/forum/topic/356077-erratic-and-weird-date-and-time-behavior/#findComment-2803446 Share on other sites More sharing options...
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