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[Guide] HP Elite 8300 & 6300 Pro (all form factors) using Clover UEFI hotpatch

Joined
May 31, 2019
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HP 8300 SFF
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i5 3470
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Palit GT640
@Sniki has already figured this out. Changes to the config.plist are required for updates to go normally.
He should be updating the guide to reflect the changes. Go back to the .4 version for now if you can.
If you didn't make a clone of your previous install you'l just have to be patient till he posts this fix.

wise suggestion for any hackintosh owner

1. Once everything works 100%, make a bootable clone of your system drive !
2. Keep a working macOS USB Installer handy for situations where you can't boot normally.
Thanks, however as stated my machine currently won't even POST. Even if @Sniki had the fix ready now I wouldn't be able to apply it as can't even reach BIOS let alone boot a recovery drive. Has anyone else experienced similar hardware issues post this update?
 
Joined
Mar 22, 2019
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HP Elite 8300 MT
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i5-3470
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GT 710
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Thanks, however as stated my machine currently won't even POST. Even if @Sniki had the fix ready now I wouldn't be able to apply it as can't even reach BIOS let alone boot a recovery drive. Has anyone else experienced similar hardware issues post this update?
Updated to 10.14.5 using this guide. No problems for me.
 

trs96

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GA-Z97X-UD3H-BK
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Thanks, however as stated my machine currently won't even POST
Have you completely unplugged and then cleared CMOS ? Can you try booting from a Windows install USB to see if that will work ? F9 is the hotkey to get you to the boot menu. Possibly try a BIOS flash from a DOS USB Drive. If none of those things work you might need a new motherboard. They sell for under 20 dollars on Ebay.
 
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Joined
Dec 20, 2018
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NUC7
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HD 620
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@ChrisRowland , I faced this a couple of times. For me, it appeared to be a corrupted BIOS and may be related to nvram getting munged.

Try this. In one case it did work for me.

Create a bootable cdrom or USB 2.0 thumb drive (8GB or less, I used a 512mb drive!)
Be sure to name it HP_TOOLS
On it place ONLY the BIOS BIN file that WAS working.
Put the CD or USB drive in. Make sure the USB is in a 2.0 port, of using that media.
Power up. Wait. Wait. Wait. Be patient. Wait. It may take 3 minutes or 30!
Reboot. Be sure to enter into BIOS settings immediately and check and attempt to save your changes if you are able.
Be sure to remove the CD or USB immediately after first successful boot and so that you don’t begin anew the BIOS recovery method.
The HP Compaq 8300 Elite series are supposed to be able to do a BIOS recovery using this method.
 
Joined
Mar 22, 2019
Messages
225
Motherboard
HP Elite 8300 MT
CPU
i5-3470
Graphics
GT 710
Mac
MacBook
Classic Mac
iMac
Mobile Phone
iOS
@ChrisRowland , I faced this a couple of times. For me, it appeared to be a corrupted BIOS and may be related to nvram getting munged.

Try this. In one case it did work for me.

Create a bootable cdrom or USB 2.0 thumb drive (8GB or less, I used a 512mb drive!)
Be sure to name it HP_TOOLS
On it place ONLY the BIOS BIN file that WAS working.
Put the CD or USB drive in. Make sure the USB is in a 2.0 port, of using that media.
Power up. Wait. Wait. Wait. Be patient. Wait. It may take 3 minutes or 30!
Reboot. Be sure to enter into BIOS settings immediately and check and attempt to save your changes if you are able.
Be sure to remove the CD or USB immediately after first successful boot and so that you don’t begin anew the BIOS recovery method.
The HP Compaq 8300 Elite series are supposed to be able to do a BIOS recovery using this method.
Would this work on an EliteDesk 800 G3, because I had the same problem. Also, there was no power being transmitted to the display or USB ports. How do you know when to reboot.
 
Joined
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Would this work on an EliteDesk 800 G3, because I had the same problem. Also, there was no power being transmitted to the display or USB ports. How do you know when to reboot.
Okay great question. I forgot to be sure to be connected to VGA as I can’t remember if I was ever successful with DisplayPort.
AND the recovery process actually should reboot on its own and I did sit there staring at the HP so that I could catch it when it did and go into BIOS setup. You definitely do NOT want to interrupt the BIOS recovery. Let it run. That’s why I said be patient :)
I wish I could guarantee the sequence and the results. But really I was just relieved to have found some of the clues to the recovery process via online research and get my machine working again. Hoping that you can too without having to resort to a eBay replacement mobo.
 
Joined
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Messages
225
Motherboard
HP Elite 8300 MT
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i5-3470
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Okay great question. I forgot to be sure to be connected to VGA as I can’t remember if I was ever successful with DisplayPort.
AND the recovery process actually should reboot on its own and I did sit there staring at the HP so that I could catch it when it did and go into BIOS setup. You definitely do NOT want to interrupt the BIOS recovery. Let it run. That’s why I said be patient :)
I wish I could guarantee the sequence and the results. But really I was just relieved to have found some of the clues to the recovery process via online research and get my machine working again. Hoping that you can too without having to resort to a eBay replacement mobo.
Would it work with any BIOS revision, as I don't know what revision is installed.
 
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Would it work with any BIOS revision, as I don't know what revision is installed.
I’m going from my memory as I am away from my machine and research, but I do think there is a limitation on “rollback” BIOS levels at some versions.
So take a look at the very first post in this thread. When you first built your machine following this guide you should have got the BIOS to at least 2.99. So start looking at the online notes on HP support site for each available BIOS revision and determine which ones restrict rollback. You can then start your recovery attempt with the highest version (3.06?) and keep attempting until you are successful or reach 2.99 which definitely restricts rollback to no earlier versions than that.
It’s a brute force method and will try your patience I am sure.
I learned my lesson and now I have an external note for my HP as to which version of the BIOS is installed AND I have both a CD and USB 2.0 thumb drive built with THAT version and each media is named HP_TOOLS safely stored in case I ever need them again. :). I’ve been burned and invested a lot of time monkeying around.
Good luck.
 
Joined
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Messages
225
Motherboard
HP Elite 8300 MT
CPU
i5-3470
Graphics
GT 710
Mac
MacBook
Classic Mac
iMac
Mobile Phone
iOS
I’m going from my memory as I am away from my machine and research, but I do think there is a limitation on “rollback” BIOS levels at some versions.
So take a look at the very first post in this thread. When you first built your machine following this guide you should have got the BIOS to at least 2.99. So start looking at the online notes on HP support site for each available BIOS revision and determine which ones restrict rollback. You can then start your recovery attempt with the highest version (3.06?) and keep attempting until you are successful or reach 2.99 which definitely restricts rollback to no earlier versions than that.
It’s a brute force method and will try your patience I am sure.
I learned my lesson and now I have an external note for my HP as to which version of the BIOS is installed AND I have both a CD and USB 2.0 thumb drive built with THAT version and each media is named HP_TOOLS safely stored in case I ever need them again. :). I’ve been burned and invested a lot of time monkeying around.
Good luck.
I ordered the EliteDesk 800 G3 on eBay, and I was never able to boot into the BIOS. So I don't know what's installed.
 

trs96

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Joined
Jul 31, 2012
Messages
14,801
Motherboard
GA-Z97X-UD3H-BK
CPU
i5-4690K
Graphics
HD4600 / RX 570
Mac
iMac, Mac mini
Mobile Phone
Android
I’ve been burned and invested a lot of time monkeying around.
Just curious, did your problems with your 8300 occur during or after a macOS point update as they did for Chris ?
 
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