BIOS Updates for GIGABYTE's AMD EPYC "Rome" Server Systems to Fix PCIe Overwrite Error

Rome Erratum 1185
2019/11/25

Firmware Issue (Non-Security Related): "Rome" Erratum #1185

Issue: PCIe Receive Buffer Location May be Incorrectly Overwritten

Affected Systems: GIGABYTE 2nd Generation AMD EPYC "Rome" Server Systems / GIGABYTE 1st Generation AMD EPYC "Naples" Systems Enabled for "Rome" Drop-In (Rev. A00)

Recommended Fix: Update to New BIOS with AGESA 1.0.0.4

November 25th 2019  – AMD has discovered a firmware issue in their 2nd Generation AMD EPYC 7002 Series "Rome" Processors. Under a highly specific and detailed set of internal timing conditions, a PCIe receive buffer SRAM location in the host controller may be incorrectly overwritten. This error may result in unpredictable system behavior and possible logging of uncorrectable parity error(s) in MCA_STATUS_NBIO due to incorrect data in PCIe buffer.

To fix this issue, AMD has issued a new AGESA 1.0.0.4. This new AGESA version has been incorporated into a new GIGABYTE BIOS which has already been published on the product pages of each affected product on our official website. GIGABTYE recommends customers to update their BIOS to the new version to resolve this issue.

Affected System ModelAffected Motherboard ModelNew BIOS with AGESA 1.0.0.4

H252-Z10

H242-Z10 / Z11

G242-Z10

R162-Z10 / Z11

MZ12-HD0

R05_F01a

R152-Z30 / Z31Z32

R272-Z30 / Z31Z32

MZ32-AR0

R09_F01

G482-Z50 / Z51

MZ52-G40

R04_F00k

H262-Z61 / Z62Z63Z66 MZ62-HD0

R08_F01b

R182-Z90 / Z91Z92

R282-Z90 / Z91Z92Z93

MZ92-FS0

R09_F00a

G292-Z22

MZ22-G20

R04_F00c

G292-Z42

MZ42-G20

R02

R151-Z30 (Rev. A00)

R271-Z31 (Rev. A00)

G221-Z30 (Rev. A00)

S451-Z30 (Rev. A00)

MZ31-AR0 (Rev. 2.0)

R12_F18

R271-Z00 (Rev. A00)

W291-Z00 (Rev. A00)

MZ01-CE0 / CE1 (Rev. 2.0)

R12_F12

R181-Z90 / Z91Z92 (Rev. A00)

R281-Z91 / Z92Z94 (Rev. A00)

MZ91-FS0 (Rev 2.0)

R12_F19

G291-Z20 (Rev. A00)

MZ21-G20 (Rev 2.0)

R12_F06

H261-Z60 / Z61 (Rev. A00)

MZ61-HD0 (Rev 2.0)

R12_F16

Please navigate to the "Support" section of the relevant product page to download the updated BIOS version.

For any further assistance regarding this issue please contact your GIGABYTE sales representative, or create a new support ticket at https://esupport.gigabyte.com