Lexar 1000x problem

I think I would prefer sending mails to support@lexar.com just to know where they end up.

I just ordered the 2 16gig 1000x cards I hope they don't have any problems. I have never had good luck in the past with Lexar cards always seem to get err messages after a few formatting. Since the price was so good for the 2 pack I thought I would give the m a shot again since Sandisk haven't come out with 1000x yet. And I thought might be a good pair up with the XQD card.

pwm2 wrote in post #14970591
I think I would prefer sending mails to support@lexar.com just to know where they end up.

It seems to be a legitimate Lexar support email address, I have had a response from Lexar support who asked me to do another low level format, but this has not resolved the problem. I emailed them back asking what to do next but I have not received a response in 2 days.

The cards will have to go back for warranty, as I can't afford to have the issue happen again, I will replace the Lexar cards with Sandisk Extreme Pro's which have never given me any problems

Lexar just replaced a 2 year old 32GB 600X card that had become corrupted. No questions asked.

lannes wrote in post #14933021
Don't know whether it's a one off, but when using the Lexar 1000x 32gb CF card for the first time to day, the card lost contact with the camera.

After taking about 100 shots on the CF card I noticed my 1dm4 had transfered the data saving to the SD card slot. I was able to select the CF card again but as soon as I shot the camera started using the SD card again. I was not able to play back any of the images on the CF card.

When I ejected the CF card and reinserted it, everything seems back to normal.

This is the first time I had problems with a CF card, but I have previously only used Sandisk Ducati's and Extreme Pro's, so it's not confidence inspiring.

The card was formatted in the camera, so I can't understand how it could loose contact.
All the other sandisk cards have worked in the 1dm4 without a hitch for years

I had the same card for my 1D mk3. Some pictures for some reason unknown to me became unreadable. I can put any brand sd card in the camera no problems. I have tried other brands CF cards I use in my 5D without problems, but the CF card for my 1D mk3 has to be a Sandisk card. Like to know why that is.

hihohito wrote in post #14975570
I had the same card for my 1D mk3. Some pictures for some reason unknown to me became unreadable. I can put any brand sd card in the camera no problems. I have tried other brands CF cards I use in my 5D without problems, but the CF card for my 1D mk3 has to be a Sandisk card. Like to know why that is.

It just might be that the 1D3 is using incorrect timings, not taking care to support the full spread of timing values allowed by the SD standard.

Or it might be the card that is out-of-spec.

But I would think it more likely to be the camera. The devices making use of cards are often developed and even released long before cards using the newer standards are available for testing. Possibly even designed based on pre-release documentation. Because of this, the world is full of devices that works with some brands/models of cards/USB thumbs/... but fails with other brands/models.

It is sometimes just a simple sw issue that can be fixed if the device supports firmware updates. But sometimes, there can be signals with wrong capacitances, ... requiring a hardware revision to fix.

tvphotog wrote in post #14972412
Lexar just replaced a 2 year old 32GB 600X card that had become corrected. No questions asked.

That's good to know Lexar stand by their warranty, what really peeves me, is that in my case, the product is DOA and now I have to experience the delays around the refund and or replacement process. It should have worked straight out of the box.

Lexar have responded, they want me to send the cards back to their australian agent, who will then forward them onto Lexar in the states for assessment, after that if approved they will send me replacement cards. This sounds like a lengthy process, more than a month I suspect.

I should have stuck with the tried and true Sandisk Extreme Pro rather than experimenting with a new product, I was seduced by the extra speed promsied by the Lexar 1000X cards. In real world world conditions the extra speed doesn't seem to be as significant as testing suggests, unless the speed of my cards is affected by the faulty firmware.

HI,

You stated the lexar 1000X card was getting hot. I sugguest you contact our support group at www.lexar.com, click on the chat and speak to agent. Let them know you ahve a pro sereis card and it is getting hot with inmtermitent problems, we would lick to get the card back to evaluate the card. You can also email me at demwilliams@lexar.com

pwm2 wrote in post #14975617
It just might be that the 1D3 is using incorrect timings, not taking care to support the full spread of timing values allowed by the SD standard.

Or it might be the card that is out-of-spec.

But I would think it more likely to be the camera. The devices making use of cards are often developed and even released long before cards using the newer standards are available for testing. Possibly even designed based on pre-release documentation. Because of this, the world is full of devices that works with some brands/models of cards/USB thumbs/... but fails with other brands/models.

It is sometimes just a simple sw issue that can be fixed if the device supports firmware updates. But sometimes, there can be signals with wrong capacitances, ... requiring a hardware revision to fix.

I also think it is the camera with the latest firmware. But what I don't understand is what is differend with the Sandisk that my camera accept this card and not lexar or kingston. Cards I use without problems with my 5D and 30D?

Either way (card or camera) Kudos to LEXAR for jumping in to resolve the issue.

hihohito wrote in post #14977057
I also think it is the camera with the latest firmware. But what I don't understand is what is differend with the Sandisk that my camera accept this card and not lexar or kingston. Cards I use without problems with my 5D and 30D?

All components and standards in the world have tolerances. Min and max values on parameters.

So a card reader that have some parameter outside allowed range can work well with some cards and not so well with other cards. And the cards that doesn't work with this card reader can work very well with other card readers.

Different card manufacturers are likely to use different memory controller chips. So one card reader may seriously dislike cards that are designed with one memory controller chip while work well with cards using different controllers.

So a specific combination of camera+card model can fail badly while the same cards works very well when used with other cameras and the camera works well when used with other brands/models of cards.

In this specific case I don't much like the "getting warm" part. If there are any lockup phenomenon in the card, or if the camera for some reason tries to make millions of write attempts when saving an image. I haven't worked with any 1000x cards myself, so I don't really know what amount of power they are likely to require for normal operation at full speed or at the speed the 1D3 can make use of.

Originally, the CF interface was specified for huge amounts of power, but a normal CF memory card consumes a small fraction of what the CF standard mentions. Anyone happens to know if the Lexar card supports ReadyBoost? In that case, the Lexar card could potentially draw much more current than the 1D3 was designed to supply. And then a lot of strange things can happen, including lockups of the memory card because the supply voltage isn't kept stable.

pwm2 wrote in post #14975617
It just might be that the 1D3 is using incorrect timings, not taking care to support the full spread of timing values allowed by the SD standard.

Or it might be the card that is out-of-spec.

But I would think it more likely to be the camera. The devices making use of cards are often developed and even released long before cards using the newer standards are available for testing. Possibly even designed based on pre-release documentation. Because of this, the world is full of devices that works with some brands/models of cards/USB thumbs/... but fails with other brands/models.

It is sometimes just a simple sw issue that can be fixed if the device supports firmware updates. But sometimes, there can be signals with wrong capacitances, ... requiring a hardware revision to fix.

The memory card standards are supposed to be backwards-compatible. Lexar unfortunately has a history of "deviating" from the standards; they, back in the early 2000s, had to do a firmware upgrade to their cardsbecause their proprietary CF accelerator firmware essentially "broke" the cards when used in Canon 1Ds. If a card is properly designed, however, it will function properly in older equipment. The only exceptions would be in cases where the card format is not backwards compatible (FAT32 vs. FAT16, for instance; the EOS D30 and D60 only supported FAT16, so were effectively limited to cards of 2 GB or smaller) or there's a radical deviation as with the move from SD to SDHC to SDXC, where backward compatibility is explicitly excluded.

Jon wrote in post #14977362
The memory card standards are supposed to be backwards-compatible.

Yes they should.

But it is easier to test a card for conformance than it is to test a card reader for conformance.

Alas, the programming forums all over the world are full of requests from developers who have products that works with card A but not with card B and they have no clue what is wrong. But yes - sometimes the blame should be put on the card side, and not the reader side.

Haven't received my 16gb 1000x yet but after reading these post I am wondering if I made the wrong choice. I had problems with Lexar cards last year, those cards are now sitting in a drawer and these were the second set. Keeping my fingers crossed.

I used a new 32GB Lexar 1000x card (via Adarama) for the first time this weekend. On Sat about 800 images on a Mark III and Sun about 1000 in a 7D.

No issues with the card in either camera. I did notice the 7D body was hot on Sun, About 1000 images in about 3 hours, but I attributed it to being in the Sun on a 80 degree plus day.