#BIG SUR MICROPATCHER UPGRADE#

May have to replace it with a Sonnet Allegro card? There are reports that these cards work natively in Big Sur, but so far, no dice. The System Information app doesn’t show anything connected.

Update: Disk Utility sees a drive connected to the card, but can't mount it.

It seems to see the Inateck KT4004 4-port PCIe USB3 card (not yet tested) I'm using an external Topping MX3 DAC/Amp for sound (connected via USB), and it's recognized and works.

It seems to recognize the built-in FireWire 800 controller, but I don't have any FireWire devices handy to test with.

Update: Works fine, so far (I’m typing this on a Keychron K8 connected via Bluetooth, and I’m listening to the Music app playing through a Bluetooth-connected Bose QC35 II headset.

Bluetooth appears to be working (it shows up and is recognizing local devices) but I haven't tested yet.

WiFi does not work I have the Broadcom BCM4322, which is unsupported: Networkingīig Sur recognizes the two onboard Intel 82574L gigabit controllers and connects to the network.

#BIG SUR MICROPATCHER UPGRADE#

According to sysctl -a | grep brand, the CPU is an Intel(R) Xeon(R) CPU X5680 3.33GHz a/k/a a Westmere, so that’s one upgrade I don’t have to worry about (I’ve heard of folks having issues, most notably with audio, with the older Nehalem chips).

It sees all the memory (4x 8GB sticks of 1333MHz DDR3 ECC).

Used a great script to obtain the Big Sur installation app directly from Apple, even though the computer I was using (Late 2013 iMac) isn’t supported:

Big sur micropatcher