Pros: - It has 20 PCIe 5.0 lanes that are shared between three mechanical x16 expansion slots. - The first two expansion slots support PCIe bifurcation. - All of the PCIe lanes in the expansion slots are connected to the CPU, just like Threadripper. - It has a metal stiffener plate on the bottom that covers most of the motherboard to prevent sagging. - It looks professional, like a workstation motherboard. - Lots of settings in the BIOS to help you configure a stable system.

Cons: - Cost. - The motherboard is very heavy. - Does not come with a hardcopy of the manual. - No documentation on BIOS settings. - The M.2 Xpander-Z Gen 5 Dual card takes up 1.5 slots.

Overall Review: - MSI needs a dedicated motherboard BIOS manual that covers all of their BIOS settings, like the ones ASUS provides for their motherboards. - My motherboard came with BIOS version 7D69-110. I could not boot from a CD using this version. I downloaded BIOS version 7D69-125 from MSI's website and used it to flash the motherboard. This version allowed me to boot from a CD. - I am using a Deepcool AK500 with dual Noctua NF-F12 iPPC-3000 fans mounted in a push-pull configuration to cool an AMD Ryzen 9 7950X CPU. The fin stack is shifted to clear the RAM slots, and it weighs 200g more than the Noctua NH-12A. - Disabling the iGPU, PBO, and C-States keeps CPU package temperatures under 40C when idle, and 70C when under load without changing the default 170W TDP. Under normal load, CPU boosts to 5.5GHz across all cores, with one to four cores boosting to 5.75GHz. CPU temperatures reach 95C only during a Cinebench R23 multi-threaded run with a clock speed of 5.0GHz +/- 0.1 GHz across all cores.

Pros: It costs less than a Threadripper Pro 5955WX CPU. Works great with PBO disabled, and air-cooled using a Deepcool AK500 with two fans in a push-pull configuration. Temps stay under 75C for my heavy workloads. Temps go below 40C when idle.

Cons: It is not a Threadripper 7000 series CPU. Only has 28 PCIe lanes from the CPU.

Overall Review: This is a temporary solution until the Threadripper 7000 series CPUs are available.

Pros: All four modules work at EXPO settings and rated speed on my MSI X670E ACE motherboard.

Cons: Cost. Memory training.

Overall Review: On my MSI X670E ACE motherboard in the Advanced BIOS GUI under OC, I have the BIOS settings "EXPO", "High-Efficiency Mode", and "Memory Context Restore" set to 'Enabled'. Memory training is always enabled when "Memory Context Restore" is set to 'Disabled'. Memory training is reduced when "Memory Context Restore" is set to 'Enabled'. Memory training is required when you change the BIOS settings. Memory training is required when you add, remove, or rearrange expansion cards or drives. Memory training runs automatically when you change the BIOS settings. Memory training must be manually initiated (e.g., make a BIOS change) when you make any changes to the hardware. If you are using Microsoft Windows and you get a blue screen, you probably need to retrain your DDR5 memory. Failure to retrain your DDR5 memory will result in your system crashing.

Pros: - Perfect for an air-cooled Threadripper HTPC. - Eight expansion slots. - Room for extra wide extended ATX motherboards. - Room for extra long power supplies. - 5.25-inch drive bays. - Magnetic air filters for the Corsair Air 540 available from DEMCiflex.

Cons: - Does not come with rack-mount hardware. - Does not come with magnetic filters for all air intakes. Only the front air intake has a pre-installed magnetic filter.

Overall Review: Beautiful case. Very functional. Easy to modify and customize. Well built with a solid feel.

Pros: Works great with AMD Ryzen Threadripper 1950X CPU running Windows 7 64-bit OS. Great memory compatibility and stable operation with MSI version 1.7 BIOS and G.SKILL TridentZ F4-4000C18Q-32GTZ DDR4 RAM. Can use all four sticks for 32GB of quad-channel memory. Runs cool and quiet after tuning the fans. Noctua NH-U14S-TR4-SP3 AMD TR4 CPU Cooler keeps my Threadripper at 39 degrees C during low usage, and below 61 degrees C under full load. Wireless network card, rear shroud, and M.2 heat spreaders do not have to be installed for mainboard to work.

Cons: MSI Command Center software has a cumbersome GUI layout. The fan tuning function in MSI Command Center does not take into account fan location and airflow direction. Fans must be manually tuned in the BIOS. No way to turn off LEDS in the BIOS. MSI Mystic Light software must be installed to turn off the LEDS. Even though the splash screen is disabled in the BIOS, it shows up when password booting is enabled. No way to disable or customize splash screen when password booting is enabled.

Overall Review: My computer is entirely air cooled, with no water cooling. Removed rear shroud and M.2 heat spreaders to allow air to reach surface mount components on mainboard. The build quality of the mainboard is top notch. My issues are with the BIOS and MSI's utility software, which can be fixed via updates from MSI.

Pros: Runs stable in Windows 7 on a MSI X399 Gaming Pro Carbon motherboard with version 1.7 UEFI BIOS. Boots with no errors at 3200 MHz using XMP presets. Boots with errors at 3466 MHz using XMP presets. Boots with errors at 3600 MHz using XMP presets.

Cons: Will not post at 4000 MHz using XMP presets. Will not post using memory speeds higher than 3600 MHz.

Overall Review: MSI version 1.7 UEFI BIOS shows memory speeds up to 4000 MHz in their presets, but, the integrated memory controller in the AMD Ryzen Threadripper 1950X supports a maximum memory speed of 3200 MHz.