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SD card not working now
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novatom Offline

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Post: #1
Sad SD card not working now
I've had my machine for 6 months now and at first I was removing the SD card to d/l data to my laptop on a fairly regular basis (every day or every other day). Recently I've been doing it less and less, about once a week.

Last night I plugged it into the laptop and nothing. The card reader works on my laptop though because I tested it. And when I put the card back into my CPAP machine, the machine reacted like it usually does when I put it back in. Interesting that the card reader on the machine recognizes the card but my laptop doesn't.

I honestly didn't believe all those warnings about excessive plugging and unplugging the data card and whether it could eventually wear out because I use SD cards all the time and they never wear out (and yes, I use the same ones over and over). And my impression was that it's usually the card reader on the machine that stands a better chance of wearing out, not the card itself. This card came with the machine and is identified as a data card for the PR REMStar One.

I wonder why this one would wear out while normal consumer grade SD cards don't (with the same amount of use).
06-12-2015 10:04 AM
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justMongo Offline

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Post: #2
RE: SD card not working now
Pick up a 2Gb SD card and use it. They are still available from the online company that starts with "A".

I do not believe "excessive" in/out of the card harms it.
Maybe you just got one prone to early life failure.

INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
06-12-2015 10:25 AM
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2PAPs Offline

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Post: #3
RE: SD card not working now
USB isn't an exact science. If you have a USB SD card adapter, see if plugging your SD card into that and then plugging it into the USB port makes a difference or into another USB port.
06-12-2015 11:04 AM
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Crimson Nape Offline

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Post: #4
RE: SD card not working now
(06-12-2015 10:04 AM)novatom Wrote:  Last night I plugged it into the laptop and nothing. The card reader works on my laptop though because I tested it. And when I put the card back into my CPAP machine, the machine reacted like it usually does when I put it back in. Interesting that the card reader on the machine recognizes the card but my laptop doesn't.

I'd first try rebooting the computer. If "No Joy" after a reboot then I'd look into a replacement card.

Edit: You could try deleting all USB/SD drive declarations in your Device Manager and rebooting to allow the computer to re-discover those ports.

Statistics prove that people who have more birthdays live longer.
(This post was last modified: 06-12-2015 11:53 AM by Crimson Nape.)
06-12-2015 11:41 AM
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Terry Offline

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Post: #5
RE: SD card not working now
(06-12-2015 10:04 AM)novatom Wrote:  I've had my machine for 6 months now and at first I was removing the SD card to d/l data to my laptop on a fairly regular basis (every day or every other day). Recently I've been doing it less and less, about once a week.

There's probably nothing wrong with the card. It's more likely that Windows isn't recognizing it, or just isn't auto-playing it.

Does the card work in another computer?

If you pop it in to your laptop does it still show up as a disk drive in Windows Explorer?
06-12-2015 12:20 PM
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eseedhouse Offline

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Post: #6
RE: SD card not working now
I had two Resmed supplied SD cards fail, so I rather suspect they are going cheap on their supply purchasing here. Admittedly this is too small a sample to be entirely sure.

Resmen warns against using third party SD cards on their website, but I am willing to take the chance. Currently I'm using a Flashair card and can leave it in the machine all the time and read it via my wifi network.

However I just want to warn you that if your machine fails and Resmed finds out you are using a third party card they just might use that as an excuse not to honour their waranty. This is a suspicion, not a fact, as I know of no cases where this has happened. Use your own judgement.

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06-12-2015 02:00 PM
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Terry Offline

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Post: #7
RE: SD card not working now
(06-12-2015 02:00 PM)eseedhouse Wrote:  I had two Resmed supplied SD cards fail, so I rather suspect they are going cheap on their supply purchasing here. Admittedly this is too small a sample to be entirely sure.

If they're still using 2GB cards, they may be having supplier issues, since AFAIK, nobody manufactures them anymore.

My "respironics" branded card is just a Lexar with a sticker on it.
06-12-2015 02:42 PM
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novatom Offline

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Post: #8
RE: SD card not working now
(06-12-2015 02:42 PM)Terry Wrote:  My "respironics" branded card is just a Lexar with a sticker on it.

I suspect mine is the same.

I plugged the SD card into my lonely, dust collecting desktop and it worked fine. And other SD cards work well in my laptop as well so I guess my laptop just doesn't like that particular card. I'll try rediscovering and if that doesn't work, get a USB card reader. Thanks for all your suggestions.
(This post was last modified: 06-15-2015 02:06 PM by novatom.)
06-15-2015 02:04 PM
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archangle Offline
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Post: #9
RE: SD card not working now
I wonder if the card reader on the CPAP machine has worn out. That's what would concern me about plugging and unplugging the card all the time.

In general, most people find any SD or SDHC card 1 GB or bigger seems to work fine on PRS1, S9, or A10 machines. Cards bigger than 2 GB seem to work, but don't give you any more data collection.

There's a warning from ResMed in the Useful Links in my signature about a safety concern about non-ResMed cards.

Get the free SleepyHead software here.
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06-16-2015 02:39 AM
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DeepBreathing Offline
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Post: #10
RE: SD card not working now
Quote:There's a warning from ResMed in the Useful Links in my signature about a safety concern about non-ResMed cards.

This is what Resmed says:
Q. Why do you recommend using only ResMed-supplied SD cards?

A. ResMed-supplied SD cards should be used in order to meet safety standards (e.g., IEC 60601-1). The electrical safety test authority has determined that S9 therapy devices that use SD cards need to have appropriate clearance from the accessible part of the card to the electronic parts inside the card. ResMed has selected several SD cards that meet the necessary safety requirement and supplies these with the therapy device or as accessories. Not all SD cards on the market meet the clearance requirement or have been tested and validated to work with S9 devices.


Why is my BS monitor sounding the alarm? Is the SD card going to electrocute me? Shock

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INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
06-16-2015 04:44 AM
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