ASUS Prime Z490-A, Intel Core i9-10850K, 64GB RAM, RX 5700 XT GPU

[roboman01]

Hi all, I'm struggling to get working this Build with the iGPU
Graphic cards are quite hard to find at reasonable price, then I decided to use temporally the integrated GPU
I have errors like:
DSMOS has arrived
or
low level disk is not mounted

Anyone can help on this ?
Thanks in advance.

-
Here the hardware:
Asus Z490-A
i9-10850K
NVMe WD BLACK SN750 1TB
Patriot Viper Steel RAM DDR4 3600 MHz
--

Here the LOG:
00:000 00:000 AAPL: #[EB|LOG:INIT] 2021-04-04T18:18:14 00:003 00:003 AAPL: #[EB|VERSION] <"bootbase.efi 495.80.3~11 (Official), built 2020-12-21T21:13:03-0800"> 00:007 00:003 AAPL: #[EB|BUILD] <"BUILD-INFO[306]:{"DisplayName":"bootbase.efi","DisplayVersion":"495.80.3~11","RecordUuid":"9D1BBDDB-A7A6-4B24-8D67-9F605C922885","BuildTime":"2020-12-21T21:13:03-0800","ProjectName":"efiboot","ProductName":"bootbase.efi","SourceVersion":"495.80.3","BuildVersion":"11","BuildConfiguration":"Release","BuildType":"Official"}"> 00:010 00:003 AAPL: #[EB|CFG:DEV] r2 0x0 0x0 00:013 00:003 AAPL: #[EB|H:IS] 0 00:017 00:003 AAPL: #[EB|WL:MODE] 0 00:020 00:003 AAPL: #[EB|CFG:ARG] boot-save-log 0x0000000000000002 (0x0000000000000002 < 0xFFFFFFFFFFFFFFFF) default 00:024 00:003 AAPL: #[EB|CFG:ARG] wake-save-log 0x0000000000000002 (0x0000000000000002 < 0x0000000000000002) default 00:027 00:003 AAPL: #[EB|CFG:ARG] console 0x0000000000000001 (0x0000000000000001 < 0x0000000000000001) default 00:030 00:003 AAPL: #[EB|CFG:ARG] serial 0x0000000000000000 (0x0000000000000000 < 0x0000000000000000) default 00:034 00:003 AAPL: #[EB|CFG:ARG] embed-log-dt 0x0000000000000000 (0x0000000000000000 < 0x0000000000000000) default 00:037 00:003 AAPL: #[EB|CFG:ARG] timestamps 0x0000000000000000 (0x0000000000000000 < 0xFFFFFFFFFFFFFFFF) default 00:040 00:003 AAPL: #[EB|CFG:ARG] log-level 0x0000000000000001 (0x0000000000000001 & 0x0000000000000021) default 00:044 00:003 AAPL: #[EB|CFG:ARG] breakpoint 0x0000000000000000 (0x0000000000000000 & 0x0000000000000000) default 00:047 00:003 AAPL: #[EB|CFG:ARG] kc-read-size 0x0000000000100000 (0x0000000000100000 < 0xFFFFFFFFFFFFFFFF) default 00:050 00:003 AAPL: #[EB|H:IS] 0 00:054 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 0 0x00 00:057 00:003 AAPL: #[EB|BRD:NV] Mac-AF89B6D9451A490B 00:061 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 2 0x00 00:064 00:003 AAPL: #[EB.BST.IDT|+] 00:068 00:003 AAPL: #[EB.BST.IDT|-] 00:071 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 3 0x00 00:074 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 4 0x00 00:078 00:003 AAPL: #[EB|BRD:NV] Mac-AF89B6D9451A490B 00:081 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 5 0x00 00:084 00:003 AAPL: #[EB.H.CHK|BM] 0x0000000000000000 00:088 00:003 AAPL: #[EB.H.LV|!] Err(0xE) <- RT.GV boot-signature 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:091 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 23 0x0E 00:095 00:003 AAPL: #[EB.H.LV|!] Err(0xE) <- RT.GV boot-image-key 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:098 00:003 AAPL: #[EB|WL] 0 0 0x01 0x01 24 0x0E 00:102 00:003 AAPL: #[EB.H.LV|!] Err(0xE) <- RT.GV boot-image 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:106 00:004 AAPL: #[EB.H.LV|!] Err(0xE) <- RT.SV- boot-signature 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:111 00:004 AAPL: #[EB.H.LV|!] Err(0xE) <- RT.SV- boot-image-key 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:116 00:004 AAPL: #[EB.H.LV|!] Err(0xE) <- RT.SV- boot-image 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:119 00:003 AAPL: #[EB|H:NOT] 00:123 00:003 AAPL: #[EB|SB:P] 0x0 00:144 00:021 AAPL: #[EB|LIMG:DP] Acpi(PNP0A03,0)/Pci(14|0)/Usb(18, 0)/HD(Part2,Sig5A2777E5-B576-4FDB-94CB-453EF14166F5) 00:147 00:003 AAPL: #[EB|LIMG:FP] \System\Library\CoreServices\boot.efi 00:151 00:003 AAPL: #[EB|LIMG:OPT] 00:154 00:003 AAPL: #[EB|RPS] 0 0 0 00:158 00:004 AAPL: #[EB.OPT.LXF|F] <"\\System\\Library\\CoreServices\\com.apple.Boot.plist"> 00:162 00:003 AAPL: #[EB.LD.LF|IN] 0 1 <"\\System\\Library\\CoreServices\\com.apple.Boot.plist"> <"0"> 00:165 00:003 AAPL: #[EB.LD.OFS|OPEN!] Err(0xE) <"\\System\\Library\\CoreServices\\com.apple.Boot.plist"> 00:169 00:003 AAPL: #[EB.OPT.LXF|LF!] Err(0xE) 00:172 00:003 AAPL: #[EB.OPT.LXF|F] <"Library\\Preferences\\SystemConfiguration\\com.apple.Boot.plist"> 00:175 00:003 AAPL: #[EB.LD.LF|IN] 0 1 <"Library\\Preferences\\SystemConfiguration\\com.apple.Boot.plist"> <"0"> 00:180 00:004 AAPL: #[EB|KF] <"root-dmg=file:///BaseSystem/BaseSystem.dmg"> 00:183 00:003 AAPL: #[EB|MBA:CL] <""> 00:186 00:003 AAPL: #[EB|MBA:NV] <"-v agdpmod=pikera alcid=7 keepsyms=1"> 00:190 00:003 AAPL: #[EB|MBA:KF] <"root-dmg=file:///BaseSystem/BaseSystem.dmg"> 00:193 00:003 AAPL: #[EB|MBA:OUT] <"-v agdpmod=pikera alcid=7 keepsyms=1 root-dmg=file:///BaseSystem/BaseSystem.dmg"> 00:197 00:003 AAPL: #[EB|LOG:VERBOSE] 2021-04-04T18:18:14 00:200 00:003 AAPL: #[EB|OPT:BM] 0x2 00:203 00:003 AAPL: #[EB.OPT.LXF|F] <"\\System\\Library\\CoreServices\\PlatformSupport.plist"> 00:207 00:003 AAPL: #[EB.LD.LF|IN] 0 1 <"\\System\\Library\\CoreServices\\PlatformSupport.plist"> <"0"> 00:211 00:004 AAPL: #[EB|B:VAw] 00:214 00:003 AAPL: #[EB|P:CPR] N 00:218 00:003 AAPL: #[EB|P:MPI] N 00:221 00:003 AAPL: #[EB|P:BPI] N 00:225 00:003 AAPL: #[EB|KMR] 214183936 00:228 00:003 AAPL: #[EB.CS.CSKSD|+] 00:232 00:003 AAPL: #[EB.CS.CSKSD|!] Err(0xE) <- RT.GV boot-info-payload 8D63D4FE-BD3C-4AAD-881D-86FD974BC1DF 00:235 00:003 AAPL: #[EB.G.CS|-?] Ok(0) 00:239 00:003 AAPL: #[EB.LD.LF|IN] 0 1 <"<null string>"> <"1"> 00:245 00:006 AAPL: #[EB.B.SBS|SZ] 739896 00:254 00:008 AAPL: #[EB|B:SHA] <6c4c18c09ba51a04539131ed525a219a7a175c00> 00:258 00:003 AAPL: #[EB.WL.PWLFNV|!] Err(0xE) <- RT.GV wake-failure 7C436110-AB2A-4BBB-A880-FE41995C9F82 00:262 00:003 AAPL: #[EB.WL.DT|!] Err(0xE) <- EB.WL.PWLFNV 00:265 00:003 AAPL: #[EB.WL.PWLFRTC|NONE] 00:269 00:003 AAPL: #[EB.WL.DT|!] Err(0xE) <- EB.WL.PWLFRTC 00:272 00:003 AAPL: #[EB.LD.LKC|D] <"System\Library\KernelCollections\BootKernelExtensions.kc.development"> 00:277 00:004 AAPL: #[EB.LD.OFS|OPEN!] Err(0xE) <"System\\Library\\KernelCollections\\BootKernelExtensions.kc.development"> 00:280 00:003 AAPL: #[EB.LD.LKC|R.2] <"System\Library\KernelCollections\BootKernelExtensions.kc"> 01:075 00:795 AAPL: #[EB.LD.LKFS|-?] Ok(0) 01:080 00:004 AAPL: #[EB.LD.LKC|-?] Ok(0) 01:086 00:005 AAPL: #[EB|FWFM] 0x00000000FFDFFF7F 01:089 00:003 AAPL: #[EB|FWFT] 0x00000000FD8FF576 01:093 00:003 AAPL: #[EB|BST:REV1] 01:096 00:003 AAPL: #[EB|CSR:IN] 0x000003E7 01:099 00:003 AAPL: #[EB|CSR:OUT] 0x000003E7 01:103 00:003 AAPL: #[EB.BST.FBS|+] 01:107 00:003 AAPL: #[EB.BST.FBS|ADSZ] 0 01:110 00:003 AAPL: #[EB.BST.FBS|KSSZ] 0 01:114 00:003 AAPL: #[EB|SB:SBGMFNS] x86legacyap.im4m 01:117 00:003 AAPL: #[EB|RH:PF] usr\standalone\OS.dmg.root_hash 01:121 00:003 AAPL: #[EB|RH:MF] <"usr\\standalone\\OS.dmg.root_hash.x86legacyap.im4m"> 01:124 00:003 AAPL: #[EB.LD.LF|IN] 0 1 <"usr\\standalone\\OS.dmg.root_hash"> <"0"> 01:128 00:003 AAPL: #[EB.LD.OFS|OPEN!] Err(0xE) <"usr\\standalone\\OS.dmg.root_hash"> 01:132 00:003 AAPL: #[EB.RH.LRH|P!] Err(0xE) <- EB.LD.LF 01:135 00:003 AAPL: #[EB.BST.FBS|!] Err(0xE) <- EB.RH.LRH 01:139 00:003 AAPL: #[EB.B.WFDW|!WF] Err(0xE) 0 01:142 00:003 AAPL: #[EB|LOG:DT] 2021-04-04T18:18:15 01:146 00:003 AAPL: #[EB|LOG:EXITBS:START] 2021-04-04T18:18:15

Yes you are in the same boat as me. I am currently installing Big Sur after reading I had to use the default files not the ones Shiloh provided since we don't have the same video card as him. Well I can't attach any files for some reason not even in a message. Sorry.

 

[CeruleanCloud]

Try the build from this thread BUT add in the mods I posted on p4. Do not insert any graphics card, keep the slot empty. This should make the system boot using the iGPU. It worked for me using a 10900k on a490z prime. One work of caution: have tested during normal operation but not at build time....

 

[roboman01]

giuprius try this EFI. This is the default EFI for this motherboard for internal graphics, nothing else. Its pretty much what OpenCore releases plus what is needed for this particular motherboard. Took me less than 10 minutes to install Big Sur onto this machine which I am typing from. Now I have to begin to get the EFI ready for the hard drive, and then the RX 570 I have in my other machine. I have no choice except to move that card over because there are no video cards out there for sell currently at a decent price. From what I've read they will not drop until April 9th.

I still have a lot of work to do. I just hope the Pulse RX 570 card works OOB.

 

[roboman01]

Finally got Big Sur installed, and it is working great using the above Open Core default files I attached above. Time to do what Shiloh did with creating a SSDT-ASUS-Z490.aml because his will not work using the onboard graphics only. My system keeps rebooting if I add his SSDT, so it looks like I will have to create my own.

BTW, Asus has "beta" bios that includes Intel 11th Generation support. I wouldn't use a "beta" BIOS; that is my opinion.

 

[maniamax36]

Does anyone have a good overclocking guide for this motherboard?

I got Big Sur installed. I had a little issue initially but then I saw that I need to use OpenCore 0.6.5 to make the installation work. Thanks for the great guide!

 

[roboman01]

Does anyone have a good overclocking guide for this motherboard?

I got Big Sur installed. I had a little issue initially but then I saw that I need to use OpenCore 0.6.5 to make the installation work. Thanks for the great guide!

Why would you want to overclock 10 cores?

I did find an issue that needs to be addressed more than anything right now. It appears these memory sticks will not work with XMP I nor II with this CPU and Motherboard for some awful reason. No matter what I try the motherboard defaults back to 2133MHz. I understand these CPUs are default to work with DDR4-2933. If anybody can get this build to work with XMP working to run the memory at 3200MHz that would be great. I think it may have something to do with the timings IMHO. To be honest I cannot get these memory to go past 2133MHz using this motherboard's BIOS.

See if anybody else has this issue.

Also, I cannot install my RAM in slots A2 and B2 but only in A1 and B1. If I install them in A2 and B2 there is no video, nothing, basically it will not post. But the manual recommends to install the memory in A2 and B2 if you are using 2 sticks!! Remind me not to purchase another Asus motherboard again!! I will stick with Gigabyte, I never had any issue with my last three Gigabyte boards.

 

[maniamax36]

Why would you want to overclock 10 cores?

I did find an issue that needs to be addressed more than anything right now. It appears these memory sticks will not work with XMP I nor II with this CPU and Motherboard for some awful reason. No matter what I try the motherboard defaults back to 2133MHz. I understand these CPUs are default to work with DDR4-2933. If anybody can get this build to work with XMP working to run the memory at 3200MHz that would be great. I think it may have something to do with the timings IMHO. To be honest I cannot get these memory to go past 2133MHz using this motherboard's BIOS.

See if anybody else has this issue.

Also, I cannot install my RAM in slots A2 and B2 but only in A1 and B1. If I install them in A2 and B2 there is no video, nothing, basically it will not post. But the manual recommends to install the memory in A2 and B2 if you are using 2 sticks!! Remind me not to purchase another Asus motherboard again!! I will stick with Gigabyte, I never had any issue with my last three Gigabyte boards.

I like to tinker with my computers, so I tend to apply liquid metal to my CPUs and squeak out another 10-20% on my machines. I do a lot of C4D and AE rendering work so it's nice to save as much time as possible.

I actually just enabled the BIOS', EZ setup page, XMP and AI Overclocking profiles and got some decent results. See attached. These are my "best" numbers so far, but I get on avg around 1400 single core, and 11200 multi with the AI overclocking and XMP 1 on.

I haven't had any trouble using all four slots for the RAM and overclocking them to 3200MHz. I had to turn on XMP to make it work but it seems fine to me. I'm using the RAM from my previous build - https://www.amazon.com/gp/product/B0711BMM18/?tag=tonymacx86com-20

 

[giuprius]

giuprius try this EFI. This is the default EFI for this motherboard for internal graphics, nothing else. Its pretty much what OpenCore releases plus what is needed for this particular motherboard. Took me less than 10 minutes to install Big Sur onto this machine which I am typing from. Now I have to begin to get the EFI ready for the hard drive, and then the RX 570 I have in my other machine. I have no choice except to move that card over because there are no video cards out there for sell currently at a decent price. From what I've read they will not drop until April 9th.

I still have a lot of work to do. I just hope the Pulse RX 570 card works OOB.

Hi @roboman01, it boots. I did some merge between this build and yours (config.plist and kexts).
BigSur installation was completed successfully and updated. I hope it will work smoothly and in the meanwhile I hope to see graphic cards prices drop.
Thank you very much!

 

[roboman01]

I like to tinker with my computers, so I tend to apply liquid metal to my CPUs and squeak out another 10-20% on my machines. I do a lot of C4D and AE rendering work so it's nice to save as much time as possible.

I actually just enabled the BIOS', EZ setup page, XMP and AI Overclocking profiles and got some decent results. See attached. These are my "best" numbers so far, but I get on avg around 1400 single core, and 11200 multi with the AI overclocking and XMP 1 on.

I haven't had any trouble using all four slots for the RAM and overclocking them to 3200MHz. I had to turn on XMP to make it work but it seems fine to me. I'm using the RAM from my previous build - https://www.amazon.com/gp/product/B0711BMM18/?tag=tonymacx86com-20

The issue I am having is I purchased the exact RAM modules Shiloh posted in post #1, 2x32 sticks for a total of 64GB. I upgrade my BIOS to 1003. I've tried everything, setting my system to XMP I and XMP II. (Which BTW these memories modules support XMP II per Corsair's website. So that means they should support either XMP I OR II.) But no matter what, the LED on the motherboard turns red then yellow for about 30 seconds. Then it will eventually post in safe mode with RAM at 2133MHz. I looked at Intel's sheet for this CPU memory specs, and it's DDR4-2933 spit makes zero sense that it's defaulting back to 2133MHz.
So, something is not set correctly by default in the BIOS, or there is a bug in the BIOS. I am going to try to reset the BIOS by taking out the battery for 10+ minutes, and then I am going to try using the "beta BIOS" they now have on their website. That BIOS upgrades to allow 11th generation processors.

What would cause XMP not to work like this? I booted into the bios, did what I always did on every fresh OSX install, and that is first load defaults and then proceeded to follow Shiloh's guide. I'm beginning to think 2 x32gb sticks will not work with XMP, and we should have bought 4 x16gb sticks.

 

[cliffDeane]

Hey.
I had my system working fine and upgraded the CPU fan, and now I can’t enable XMP. I don’t mind as much as I found that not running XMP mode in my system is much more stable. I was able to set my RAM to 3200 although 3600 is what it’s rated as via XMP.
I don’t mind, everything is working flawless.