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Best ASRock Motherboard for PCIe 5.0 SSD (7.68TB,
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sabofi9276 View Drop Down
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Joined: 05 May 2025
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    Posted: 05 May 2025 at 11:07pm
Hi ASRock community,

I?™m planning a high-performance workstation build around a PCIe 5.0 SSD (7.68TB, U.2 2.5") https://serverorbit.com/solid-state-drives-ssd/pci-e5-0-ssd/7-68tb-ri-2-5inch and need advice on motherboard compatibility. Key requirements:

PCIe 5.0 Lane Allocation:

Does the ASRock X670E Taichi fully support Gen5 x4 speeds on U.2 via M.2 adapter?

Concerned about shared bandwidth with GPU (planning RTX 4090 in top x16 slot).

Cooling Solutions:

Will the SSD?™s sustained 12,000+ MB/s writes throttle without active cooling?

Any experience with ASRock?™s included M.2 heatsinks for U.2 adapters?

Real-World Use Case:

Primary workload: 8K video editing (DaVinci Resolve) + RAID-0 scratch disk.

Secondary: Game library storage (to avoid frequent reinstalls).

Current shortlist:

X670E Taichi

Z790 Riptide (if Intel better handles Gen5 splits)

Budget: ~$400 for the board. Thanks for any insights!
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Dgme View Drop Down
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Joined: 21 Aug 2024
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Points: 240 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dgme Quote  Post ReplyReply Direct Link To This Post Posted: 12 hours 22 minutes ago at 5:49pm
Originally posted by sabofi9276 sabofi9276 wrote:

Hi ASRock community,

I?�m planning a high-performance workstation build around a PCIe 5.0 SSD (7.68TB, U.2 2.5") https://serverorbit.com/solid-state-drives-ssd/pci-e5-0-ssd/7-68tb-ri-2-5inch and need advice on motherboard compatibility. Key requirements:
Suneel Maghani
PCIe 5.0 Lane Allocation:

Does the ASRock X670E Taichi fully support Gen5 x4 speeds on U.2 via M.2 adapter?

Concerned about shared bandwidth with GPU (planning RTX 4090 in top x16 slot).

Cooling Solutions:

Will the SSD?�s sustained 12,000+ MB/s writes throttle without active cooling?

Any experience with ASRock?�s included M.2 heatsinks for U.2 adapters?

Real-World Use Case:

Primary workload: 8K video editing (DaVinci Resolve) + RAID-0 scratch disk.

Secondary: Game library storage (to avoid frequent reinstalls).

Current shortlist:

X670E Taichi

Z790 Riptide (if Intel better handles Gen5 splits)

Budget: ~$400 for the board. Thanks for any insights!


The ASRock X670E Taichi supports PCIe Gen5 x4 via M.2, but using a U.2 adapter may share bandwidth with the GPU. For 12GB/s sustained writes, active cooling is recommended; ASRock?™s passive heatsinks may not suffice.
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