The AMD B550 Motherboard Overview: ASUS, GIGABYTE, MSI, ASRock, and Others
by Dr. Ian Cutress & Gavin Bonshor on June 16, 2020 11:00 AM ESTASRock B550 Extreme4
The ASRock B550 Extreme4 was one of the motherboards highlighted at the beginning of this article as one to look out for. We picked this one out not so much for the hardware or the price, but because of the styling. ASRock has had the Extreme line of motherboards for longer than I’ve been testing motherboards, but with this generation it seems to have had a very striking visual update. We now have an epic blue streak morphing into purple across the box, the heatsinks, and even the PCB. I think it looks neat. Ian
This is another board showing a 45-degree diagonal left-to-right downward slope, but this time ASRock has added a bit more color to the system. There are some LEDs on here, most noticeably on that power delivery heatsink on the top left, next to the IO shield, but the design here seems very visually clear.
As for features, the socket is powered by an 8-pin and a 4-pin, and while the power delivery heatsinks are not connected via a heatpipe, the appear to be substantial enough for the builds this board should be going into. The socket has access to five 4-pin fan headers in easy reach, and next to the socket are the four DRAM slots, using single sided latch designs.
On the right hand side we have RGB LED headers, a 24-pin ATX connector, a Type-C header, a USB 3.0 header, six SATA ports, a two-digit debug display, and power/reset buttons. Along the bottom is another RGB LED header, two more fan headers, two USB 2.0 headers, and front panel connectors.
The PCIe area has a PCIe 4.0 x4 M.2 slot at the top, connected via the CPU, but also with its own heatsink on top. Beneath this is a full-length reinforced PCIe 4.0 x16 slot, and the next full-length slot is a reinforced PCIe 3.0 x4 design. The bottom M.2, a PCIe 3.0 x2, has a heatsink connected to the chipset heatsink. On the left is the upgraded Realtek ALC1220 audio, which also uses an NE5532 amp.
The rear IO panel starts with a HDMI output, a combination PS/2 connector, two USB 3.2 Gen 1 ports, four USB 2.0 ports, a Type-A USB 3.2 Gen 2 port, a Type-C USB 3.2 Gen 2 port, a Realtek RTL8125GB 2.5 gigabit Ethernet port, a space for Wi-Fi antenna, and the audio jacks.
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Kougar - Tuesday, June 16, 2020 - link
Most of these boards are a serious VRM upgrade over the B450 boards. If I was buying Ryzen right now I'd easily go B550 over X570.So, only the ASUS boards offer bios flashback? Seems like a cheaper, just as userful version of dual BIOS anyway.
Brane2 - Tuesday, June 16, 2020 - link
Finally ONE mini-ITX board with 3-monitor output.Gigaplex - Tuesday, June 16, 2020 - link
Colour me disappointed. I was hoping to do a mATX file server build using an APU. No support for existing APUs, no ETA on when consumers can buy the newer APUs, and most of these boards only have 4 SATA ports.I really don't want to have to buy a crappy NVIDIA 710 just to get it running.
mm0zct - Wednesday, June 17, 2020 - link
If you're booting Linux, you might be able to get away with either a good old fashioned serial cable (a lot of boards still have a serial port header) or a USB-HDMI/VGA dongle, since these are supported by the mainline kernel. The main issue might jus tbe getting the BIOS to boot your install media, but a serial port might work still here.You could also just borrow a graphics card from any other system you own to do the initial install, and then let it run headlessly once it's up and running.
Gigaplex - Wednesday, June 17, 2020 - link
I am booting Linux, and have tried completely headless in the past. It's not really worth the trouble (especially if I need to quickly diagnose issues), I'd rather just buy the crappy GPU.IBM760XL - Tuesday, June 16, 2020 - link
I'm probably missing something, but what's the point of including HDMI/DP/DVI outputs if the boards don't support APUs? Aren't you going to need to use the output on your dGPU anyway?I appreciate the summaries on the last page, but wish it could be enhanced a bit. E.g. what's the cheapest board with 2.5G Ethernet? What are the cheapest boards in general? I probably wouldn't go with the cheapest one, but given the prices on a lot of these, it's likely I would choose one of the less expensive ones.
Gigaplex - Wednesday, June 17, 2020 - link
They will support the Zen 2 APUs, which aren't out yet.IBM760XL - Tuesday, June 16, 2020 - link
So checking my local store's inventory, they have 25 B550 boards in stock, of all varieties, but are completely sold out of both B450 and X570 (there are a few cheap A320 boards available as well, and nine TRX40 boards that start at $450).Something tells me Ryzen 3000 chips have been selling quicker than the motherboard manufacturers can keep up, and maybe that's part of the reason B550 prices are starting out high. If they're selling out, it makes sense for them to start with a higher MSRP, which they can always lower if demand falls.
Unfortunately for AMD, if B450 doesn't come back in stock, that's going to hurt Ryzen 3000 sales. Intel mobo inventory is also a bit limited, but about half of the Intel models they offer are available, including some in that $75-$125 range, versus about 15% of the AMD models being in stock currently.
romrunning - Wednesday, June 17, 2020 - link
I think the delays are all shipping-related. It's affecting all computer parts, like power supplies, motherboards, and the like. I wish a bunch of the mfgs would just pool resources to buy dedicated air cargo flights; maybe pooling will mitigate some of the losses on the lower margin items.Oxford Guy - Tuesday, June 16, 2020 - link
"Most of these boards are a serious VRM upgrade over the B450 boards. If I was buying Ryzen right now I'd easily go B550 over X570."Why does that matter? Overclocking died with Zen, especially Zen 2.
As long as it doesn't throttle, you're good.