Forum Discussion
Gdetrailer
Feb 08, 2021Explorer III
dryfly wrote:Kountryguy wrote:
When I insert an SD card, it is not recognized. If I remove it, restart and reinsert it, it is recognized. Any thoughts on how to correct this problem?
Sounds like you are tying to hot swap the SD card, or flash drive (?). First thing to try is to go into computer's BIOS and makes sure that the SATA port the device is on has the hot swap feature enabled. All SATA ports hot swap feature are disabled by default on most factory BIOS settings.
SD cards ARE "hot swap" and have NOTHING to do with the computer BIOS so please don't send folks on a wild goose chase.
SD cards use a CARD READER which does not ever touch the SATA HD ports.
Card reader is connected via USB ports (YES, EVEN INTERNAL SD CARD READERS ARE CONNECT VIA INTERNAL USB PORTS!).
The problem with USB is it is not a "high priority hard interrupt", it takes a backseat to other processes that have higher priorities. Meaning it may take multiple machine cycles before the OS checks for or sees a card in slot.
However I suspect, priority most likely is not the reason for the OPs issue..
I suspect the OP may have a card reader that is going south and/or a SD card going south, internal USB port with issues, driver issues (especially if this happened after any recent Windows updates)..
Many newer PCs now days also do not have native USB 1/2 speed ports instead they have USB 3 speed ports and through Windows drivers support the USB 3 ports are made backwards "compatible".. A broken Windows USB driver can disable ALL USB1 and USB2 speed support.. Pretty much all USB card readers are USB1 and USB2 speeds..
I would however hedge the bet and say, fair chance the reader or card is the problem..
Try the card in a different reader..
Try a different card in the same reader..
And yes, I have had card readers and SD cards fail..
About RV Must Haves
Have a product you cannot live without? Share it with the community!8,793 PostsLatest Activity: Aug 22, 2023