• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

"disc scanning protection" feature of PSUs

VirtualLarry

No Lifer
I just cracked open the packaging on a SuperFlower 550W non-modular 4-fan PSU. It includes a manual (yes, a PSU with a manual, imagine that).

Among the features, it lists this:
"disc scanning protection (PS-off time >2mS) to prevent the system from performing automatic disc scanning in case of abnormal system off"

I can understand why they implemented this feature. For several years, W2K and XP gold had the problem of telling the BIOS to do an ATX shut-off, just after writing data to the HD buffers, but not giving sufficient time for the HDs to commit their buffers to the platter. This results in the infamous "C\WINDOWS\SYSTEMced is corrupt" messages.

Do all modern ATX PSUs have this feature? Or is it just something quirky and specific to SuperFlower?

I'm also curious how this interacts with automatic shutoff in case of a short or overheat. In those cases, I don't see the reason to delay shutdown, in an emergency.
 
To be honest, I've never heard of either of these things, nor had any trouble. Right before my PC shuts off I've always heard a small click of the HD parking right before power off.
 
Back
Top