AMD External Events Utility bug causes idle SSD writes on Radeon PCs; fix targeted for Adrenalin 26.11.1
AMD's External Events Utility (EEU), installed with Radeon drivers, keeps writing to the system SSD while the PC is idle, at roughly 0.3 to 5 MB/s according to user reports. The reports go back to July on AMD's community forum, and a Reddit user says the utility took about 1% of drive health per month over 16 months, a figure the sources do not verify. AMD representatives acknowledged the bug and tied it to an interaction between the utility and Microsoft's PCIe filter driver. A fix has reportedly been submitted and is aimed at Adrenalin 26.11.1, but no release date is set. No CVE is named, no exploitation or attacker involvement is reported, so the risk is storage wear and operational impact rather than a compromise.
Detalhes técnicos
- The process involved is atieclxx.exe (AMD External Events Client Module), and it can be identified by sorting processes by write activity in Windows' Resource Monitor. Reports also mention atiesrxx.exe (tomshardware.com, 11-8).
- At 5 MB/s, an SSD would receive about 18GB of host writes per hour.
- Reports include systems running Adrenalin 26.19.2, as well as older releases, suggesting the problem may not be limited to the latest update. AMD's October 30 release notes for Adrenalin 26.20.2 don't mention the issue either.
- Nobody, including AMD, has measured whether these host writes meaningfully affect drive endurance.
Remediação
- AMD has published no advisory or release note for a fix. AMD_Vik confirmed that a fix had been submitted and stated that Adrenalin 26.11.1 should resolve the issue. (videocardz.com)
- Until then, the reported workarounds are: stopping and disabling AMD External Events Utility in services.msc, which has ended the writes in user reports, but owners describe side effects on FreeSync, Adrenalin hotkeys, monitor hot-plugging, and color profiles. (dealntech.com)
- Alternatively, disabling Resizable BAR in the BIOS may reduce gaming performance. (videocardz.com)
- Check the activity first, since the bug may not affect every system.
Relatos divergentes
- The article says the fix is coming in the next update and attributes the Resizable BAR toggle to the Adrenalin app as Smart Access Memory. VideoCardz and Windows Report point to the BIOS setting, and VideoCardz names Adrenalin 26.11.1 as the target (videocardz.com; windowsreport.com).
- The article calls the drive damage potentially catastrophic. Tom's Hardware reports that the effect on SSD lifespan has not been independently established (tomshardware.com).
Linha do tempo
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AMD External Events Utility bug causes idle SSD writes on Radeon PCs; fix targeted for Adrenalin 26.11.1
ler a análise desta fonte ocultar
AMD's External Events Utility (EEU), installed with Radeon drivers, keeps writing to the system SSD while the PC is idle, at roughly 0.3 to 5 MB/s according to user reports. The reports go back to July on AMD's community forum, and a Reddit user says the utility took about 1% of drive health per month over 16 months, a figure the sources do not verify. AMD representatives acknowledged the bug and tied it to an interaction between the utility and Microsoft's PCIe filter driver. A fix has reportedly been submitted and is aimed at Adrenalin 26.11.1, but no release date is set. No CVE is named, no exploitation or attacker involvement is reported, so the risk is storage wear and operational impact rather than a compromise.
Technical Details
- The process involved is atieclxx.exe (AMD External Events Client Module), and it can be identified by sorting processes by write activity in Windows' Resource Monitor. Reports also mention atiesrxx.exe (tomshardware.com, 11-8).
- At 5 MB/s, an SSD would receive about 18GB of host writes per hour.
- Reports include systems running Adrenalin 26.19.2, as well as older releases, suggesting the problem may not be limited to the latest update. AMD's October 30 release notes for Adrenalin 26.20.2 don't mention the issue either.
- Nobody, including AMD, has measured whether these host writes meaningfully affect drive endurance.
Remediation
- AMD has published no advisory or release note for a fix. AMD_Vik confirmed that a fix had been submitted and stated that Adrenalin 26.11.1 should resolve the issue. (videocardz.com)
- Until then, the reported workarounds are: stopping and disabling AMD External Events Utility in services.msc, which has ended the writes in user reports, but owners describe side effects on FreeSync, Adrenalin hotkeys, monitor hot-plugging, and color profiles. (dealntech.com)
- Alternatively, disabling Resizable BAR in the BIOS may reduce gaming performance. (videocardz.com)
- Check the activity first, since the bug may not affect every system.
Conflicting Reports
- The article says the fix is coming in the next update and attributes the Resizable BAR toggle to the Adrenalin app as Smart Access Memory. VideoCardz and Windows Report point to the BIOS setting, and VideoCardz names Adrenalin 26.11.1 as the target (videocardz.com; windowsreport.com).
- The article calls the drive damage potentially catastrophic. Tom's Hardware reports that the effect on SSD lifespan has not been independently established (tomshardware.com).