B450m steel legend BIOS v3.20 - PCIe lanes issue |
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Tiro82
Newbie Joined: 11 Jul 2020 Status: Offline Points: 5 |
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Posted: 11 Jul 2020 at 6:43am |
Hi - apparently the latest v3.20 BIOS breaks M.2 NVME PCIe lane allocation.
Smasung Magician and HWinfo both show PCIe gen 3 x2 Tried manually forcing M.2 to gen 3 in BIOS, no effect Downgrading to BIOS v2.90 fixes the issue. Drive returns to gen 3 x4 and improves drive performance. B450m Steel Legend Ryzen 5 3600 Samsung 970 EVO plus |
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sebastianer
Newbie Joined: 27 Jul 2019 Status: Offline Points: 37 |
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I'm having the same issue in my B450 ITX (+3700X)
Sequential benchmarks write speed went down from 1600-1800MB/s to 700-900MB/s. Sometimes 20MB/s and PC gets stuck when running the sequential benchmark This started happening after upgrading to AGESA 1.0.0.6 BIOS |
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MB: ASRock B450 ITX (P3.70)
CPU: Ryzen 7 3700X RAM: Ballistix BLS2K8G4D32AESTK SSD: Crucial P1 500 NVME GPU: Gigabyte G1 GTX1080 PSU: Enermax ERX530AWT --> Corsair RM650x (CP-9020178) |
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Tiro82
Newbie Joined: 11 Jul 2020 Status: Offline Points: 5 |
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opened a support ticket and got an updated bios that fixed the issue
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sebastianer
Newbie Joined: 27 Jul 2019 Status: Offline Points: 37 |
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Really? I'll do the same. Thanks!
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MB: ASRock B450 ITX (P3.70)
CPU: Ryzen 7 3700X RAM: Ballistix BLS2K8G4D32AESTK SSD: Crucial P1 500 NVME GPU: Gigabyte G1 GTX1080 PSU: Enermax ERX530AWT --> Corsair RM650x (CP-9020178) |
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