Back in July 2019, when AMD unveiled its X570 chipset for its Ryzen processors, it captivated enthusiasts and PC users as the first desktop chipset to feature PCIe 4.0. This brought many vendors wondering how to keep the chipset cool, and all but one (GIGABYTE X570 Aorus Xtreme) came with some form of active cooling. Fast forward to 2021 and the latest iteration of new models dubbed X570S does away with the chipset fan altogether. In lieu of this, ASRock has announced the new PG Riptide series with both an X570S and B550 model designed for gamers.

Starting with the more premium of the two, the ASRock X570S PG Riptide has dual PCIe 4.0 x4 M.2 (one with SATA support) and six SATA ports with support for RAID 0, 1, and 10 arrays. There are a total of three full-length PCIe 4.0 slots that can operate at x16/x0/+x4 and x8/x8/+4, with three PCIe 4.0 x1 slots sandwiched in between. Other connectivity includes a front panel USB 3.2 G2 Type-C header, two USB 3.2 G1 Type-A headers (four ports), and two USB 2.0 headers (four ports). 

The ASRock X570S PG Riptide motherboard

Aesthetics on both models are practically identical, with the X570S featuring a larger square chipset heatsink, with the chipset heatsink on the B550 resemblant of a shield. The ASRock B550 PG Riptide has three full-length PCIe slots, with the top slot operating at PCIe 4.0 x16 and the other two operating at PCIe 3.0 x4/x1, with three PCIe 3.0 x1 slots. Regarding storage, the B550 model has one PCIe 4.0 x4 M.2 slot, one PCIe 3.0 x4/SATA slot, and six SATA ports with support for RAID 0, 1, and 10 arrays.

The ASRock X570S PG Riptide supports DDR4-5000, while the B550 PG Riptide supports up to DDR4-4933 out of the box. Both have four memory slots with support for up to 128 GB of capacity. Both models are also advertised to feature a 10-phase power delivery with Dr. MOS power stages. Both models also come supplied with ASRock's patent-pending VGA holder.

ASRock PG Riptide X570S (top) and B550 (bottom) rear panels

The ASRock X570S PG Riptide has one USB 3.2 G2 Type-C, one USB 3.2 G2 Type-A, four USB 3.2 G1 Type-A, and two USB 2.0 ports on the rear panel. In contrast, the B550 PG Riptide includes the same but with two additional USB 3.2 G1 Type-A ports. Both rear panels include a Killer E3100G 2.5 GbE controller, with space through an M.2 Key-E slot for users to add a Wi-Fi module, while both also use a Realtek ALC897 HD audio codec which adds five 3.5 mm audio jacks and a S/PDIF optical output. There's one HDMI 2.1 video output and a PS/2 keyboard and mouse combo port on both models, while the X570S includes a small BIOS flashback button.

At the time of writing, ASRock hasn't said when the new PG Series X570S and B550 will be available or how much either board will cost.

Source: ASRock

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  • geniekid - Thursday, June 3, 2021 - link

    Feels like the article should've mentioned the GPU support bracket.
  • 29a - Friday, June 4, 2021 - link

    "Both models also come supplied with ASRock's patent-pending VGA holder."

    You mean like that?
  • Exotica - Thursday, June 3, 2021 - link

    Still no thunderbolt or usb4 or upgraded audio codecs. Wait for AM5.
  • HideOut - Friday, June 4, 2021 - link

    Theres tons of upgraded audio. But AScrak would rather insult us with this garbage and charge to much for it.
  • Chriz - Thursday, June 3, 2021 - link

    Is the X570S even an updated chipset or are motherboard makers just rebranding the existing X570?
  • Gigaplex - Thursday, June 3, 2021 - link

    It's a new chipset revision that consumes less power, features are otherwise the same.
  • Silver5urfer - Thursday, June 3, 2021 - link

    There's no chipset revision.

    As per ASUS, this is only a TDP reduction with optimized AGESA code. That's their official statement. And for the new chipset, how is it possible unless you change the I/O Matisse die from 12nm to something else, say TSMC 7N ? They wont do that at all, esp when EPYC also uses the 14nm die.

    Is there a new stepping ? That I donot know, I hope they do since the USB bs problem is not going away on Ryzen 5000 processors, but even when paired with B550 and X470 that is happening.

    Idk gotta wait for them and people's experiences or get Intel if anyone wants to build right now.
  • Gigaplex - Thursday, June 3, 2021 - link

    That's interesting, an article I read a while ago mentioned it was a new revision.

    If it is a new stepping, I'd still consider that a revision, as it does mean the hardware is physically different (no matter how minor).
  • DigitalFreak - Friday, June 4, 2021 - link

    No matter if it's a new 'revision', stepping, or whatever, the only change the end-user will care about is that it no longer requires a fan.
  • bigboxes - Saturday, June 5, 2021 - link


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