dxwntime

hey y'all - was looking for some insight with an odd issue i was facing: Issue: My new ASUS mobo throws the "GPT Header Corruption has been detected..." error at post but only when two of my HDDs are plugged into the StarTech ASM1166 card. Workaround atm: Pressing F1 to get past the error and into BIOS, selecting the Unraid USB to launch as normal. Further workaround would be to disable waiting at POST errors via BIOS, but haven't done that until I find out more. System: Unraid 7.3.1 ASUS Prime B760M-AYW WiFi D4 II, BIOS 1837, i5-14400 StarTech 6-Port SATA III 6Gbps PCIe Card, Non-RAID (6P6G-PCIE-SATA-CARD) flashed to firmware 211108-0000-00 (the stock firmware wasn't detecting on my mobo until I flashed / updated) 4 onboard SATA ports that are occupied by 3x 12TB HDDs + 1x 4TB HDD ASM1166 currently holds 2x 4TB HDDs + 1x Cache SSD BIOS: CSM disabled, Secure Boot set to "Other OS", Recovery Policy left to default (Local User Control) What else I've checked: sgdisk -v is clean on every drive Long SMART tests have passed on the drives plugged into the StarTech card Warning appears with the Unraid USB removed as well Additional notes: StarTech card plugged in with 0 drives plugged in does not prompt the error, and when the SSD Cache drive is plugged in on it's own, it does not cause any issues either The same two drives that are causing this error DO NOT prompt the error to appear when plugged into the native sata ports on the motherboard (leading me to believe the drives are not the issue) 12TB drives are brand new and passed their addition to parity with 0 issues, 4TB drives are ~3,000 hours in SSD is MBR (doesn't trigger the error), both HDDs are GPT and do trigger the error via the card Questions / Insight I was looking for: Is there a known cause for why the drives would only throw this error when plugged into the ASM1166? Is this a cosmetic error / is it safe to continue using / storing files on the drives knowing this error appears at POST? Diagnostic output attached as well, and thank you for any help insight y'all There's a LSI HBA I can purchase if needed, but wasn't sure if it's worth swapping over from the ASM1166's lower power usage / smaller profile. diagnostics-20261004-1619.zip