Crash - something else to consider. If you have a mouse or some other USB 1.1 device plugged into the same USB bus as the the card reader, it will only achieve the 1.1 speed rating regardless of the USB 2.0 format of the card reader because the entire USB bus becomes limited by the 1.1 device. Not sure this is your case but brought it should be mentioned.
Fairly certain. I'll look for reference to back it up though. Also consider that the USB hub is a shared hub meaning even though you can theoretically connect up to 127 devices on a single hub they all share the same bandwidth through to the bus (or backplane), which is almost always a severely limiting factor. USB was built to be the next generation serial connected peripheral topology. As such it has abilities that currently go well beyond the capabilities of the current interface architecture to the computer, at least until PCIX-16 becomes the defacto-standard.
Oh and thanks! I became a happy Axim X50v owner last week and was looking for a new place to roost! ;-)
Crash - something else to consider. If you have a mouse or some other USB 1.1 device plugged into the same USB bus as the the card reader, it will only achieve the 1.1 speed rating regardless of the USB 2.0 format of the card reader because the entire USB bus becomes limited by the 1.1 device. Not sure this is your case but brought it should be mentioned.
I know this is sometimes the case, but I just ran a test on one of my 1GB Lexar "Normal Speed" SD cards:
- USB 2.0 bonzai card reader plugged into 4-port unpowered USB 2.0 hub plugged into Dell 600m laptop
- COMPUSA-brand Optical USB mouse plugged into same USB hub
- USB 2.0 portable HDD plugged directly into laptop
- IE open, otherwise pretty clean system, recently defragged
- Pasted single 115MB file onto card twice, used stopwatch from click to completion
...The resulting time to copy was just barely under 20 seconds, which comes out to 5.75MB/sec or 39.25X, which happens to be the fastest write speed I've recorded for any SD card.
Is there such a thing as a USB 2.0 mouse?
EDIT: I just tried a 282MB file under the same conditions. 6MB/sec! (41X) As for bandwidth use, neither the mouse nor the HDD were active during the test, but they were plugged in.
My laptop specs for those interested in comparisons:
- Pentium-M 1.4GHz (equivalent to 2GHz P4???)
- 512MB DDR RAM
- 4200RPM 40GB Hard Drive
- 64MB Video
- Laptop plugged in to power source
Last edited by Astounded EEG; 02-25-05 at 10:47 PM.
At this point, it's been more than a month, and I'm closing down the testing. Although some interesting things have happened, such as the reliability of Pocket Mechanic questioned, I believe we have enough data on current SD card technology to satisfy most Axim owners, should they ask what kind of card they should consider buying. Regardless of the program used, I think it's pretty clear that there are some cards out there that function better than others, and we have data to prove it.
Of course, this information is dated. 2GB SD cards are right around the corner (they are there, but haven't hit the market yet), and it won't be long before 4GB and 8GB CF cards are also affordable...in fact, I'm looking forward to that day.
Thank you to everyone who posted a test result...and I'll leave the link active in my signature for a few more weeks.
It has been a while, but Kingston is a very popular SD brand and is not represented on the list except for a CF card. This is undoubtedly due to the near-absence of 1GB Kingston SD cards on the market, but once they do start showing up for sale, I bet they'll be breaking some price barriers given their price points on SD cards thus far.
Ok, Ok... .I know that the results have been in, deadline met, and final summary made....
But... I just wanted to add a footnote.
I, as some one you know, went through two Kingmax 1 Gig cards. They both locked up in the exact same mannor. I sent both back. I won't re-hash the particulars, as most of you have alreay read it...
I broke down and bought a Sam's Club Lexar 1 gig. I am not sure of the actual speed but i have some results for the PPC. Not bad.. especially for the price. The hard part is when hooked up to my USB2 card reader... It doesn't copy movies back and forth nearly as fast as the Kingmax did.
Anyway, here are my results:
Brand new out of the box, un-formatted:
Read: .73 = 5X
Write .1 = .7x
Formatted on PDA
Read .66 = 4.5x
Write .1 = .7x
Formatted Fat32 on Windows CPU
Read .85 = 5.8x
Write .1 = .7x
And the best news of all........ i haven't had to cancel out that damn pop box asking me to reformat the drive. (cause it came loose, or whatever problem all kingmax cards seem to have) not once!!
Anyway, happy with my new card.
Mike
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Palm M100 --> Palm M125 --> Toshiba E335 --> To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Axim X30 High To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. --> :approve: Axim X50v :approve:
All your base are belong to us
Quote from Psionandy as heard in a thread: "It may be spelt TCPMP but i'll always pronouce it Betaplayer."
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what happened to the results? I wanted to compare the Sam's lexar to the one for sale for $55.
where did it go?
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Palm M100 --> Palm M125 --> Toshiba E335 --> To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Axim X30 High To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. --> :approve: Axim X50v :approve:
All your base are belong to us
Quote from Psionandy as heard in a thread: "It may be spelt TCPMP but i'll always pronouce it Betaplayer."
Don't forget to check out my Tutorial on Ripping your favorite DVD To PPC To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Of course, this information is dated. 2GB SD cards are right around the corner (they are there, but haven't hit the market yet), and it won't be long before 4GB and 8GB CF cards are also affordable...in fact, I'm looking forward to that day.
no one knows yet. we have *heard* that they won't but no one knows for sure. Dell Customer support is usually wrong.
__________________
Palm M100 --> Palm M125 --> Toshiba E335 --> To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Axim X30 High To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. --> :approve: Axim X50v :approve:
All your base are belong to us
Quote from Psionandy as heard in a thread: "It may be spelt TCPMP but i'll always pronouce it Betaplayer."
Don't forget to check out my Tutorial on Ripping your favorite DVD To PPC To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
I changed web hosting plans last week, and the file was temporarily lost. It's back now.
? where? wasn't it attached to your sig before?
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Palm M100 --> Palm M125 --> Toshiba E335 --> To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Axim X30 High To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. --> :approve: Axim X50v :approve:
All your base are belong to us
Quote from Psionandy as heard in a thread: "It may be spelt TCPMP but i'll always pronouce it Betaplayer."
Don't forget to check out my Tutorial on Ripping your favorite DVD To PPC To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
It was attached to my signature, and I unattached it after I closed down the experiment. We simply weren't getting additional feedback, and some people were complaining about the results...both the program we used and otherwise.
I'm one of those guys where if you kick and scream loud enough, I'll usually walk away and let you do that on your own (not saying that YOU do that, Crash, it's more of a general thing).
I am up to my old tricks again. I have gotten YET ANOTHER 1 GB SD card.
After seeing the tip on the Hardware page, i went out and bought a Lexar 1 GB SD card from Officemax. Great price.
Anyway, i decided this after looking at the results from Chris's findings. My Sam's Lexar wasn't cutting the mustard.
Anyway, i returned the Sams card. (only 10 days old)
The results from the new card are much better. and i saved $15 to boot.
anyway here they go.
Read: 1.05MB 7.2X
Write: .1 MB .7X
I think this is it for me. I am keeping this card.
Now as soon as i get my Kingmax card back (returned for the second RMA) i am selling it on E-bay, and hopefully i will have come close to breaking even, on the purchase of this new Lexar.
Mike
__________________
Palm M100 --> Palm M125 --> Toshiba E335 --> To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Axim X30 High To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. --> :approve: Axim X50v :approve:
All your base are belong to us
Quote from Psionandy as heard in a thread: "It may be spelt TCPMP but i'll always pronouce it Betaplayer."
Don't forget to check out my Tutorial on Ripping your favorite DVD To PPC To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
That card I had to send back because I think that it is bad. I got my replacement today and it looks a little bit diffrent, as far as the sticker on the front.
Here are my new benchmarks for the same 1GB Lexar SD
I got an empty envelope back in the mail marked refused by reciepient. sp?
Some scumbag at the post office has slit a perfect little slit in the side and removed the card. No accident here. looks like a box cutter or something very sharp. the cut is very percise. BAS+@RDS!!
The only thing that gives me solice, is that the poor little Kingmax card was broken. So this scumbag risked his job and federal charges for A BROKEN CARD!!! HA HA SUCKER!!!!!!
Of course, i am STILL out the money, and a replacement card
__________________
Palm M100 --> Palm M125 --> Toshiba E335 --> To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. Axim X30 High To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts. --> :approve: Axim X50v :approve:
All your base are belong to us
Quote from Psionandy as heard in a thread: "It may be spelt TCPMP but i'll always pronouce it Betaplayer."
Don't forget to check out my Tutorial on Ripping your favorite DVD To PPC To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Greetings everyone I just bought my X50v last week during the 10 days of Dell deals and decided to contribute some stats with a brand new Corsair 1 gig SD card.
I followed the instructions on running the test on my A02 revision and here are the scores exported from Pocket Mechanic:
I just bought a SanDisk Ultra II 1Gb SD Card ($61 after rebate at officemax). Anyways here is my setup....
AXIM X30H run on battery (not cradle) CPU set to Maximum, 624MHz
(I don't know if that would make a difference rather than sitting in the cradle, but we are testing real live and not "under best circumstances". I noticed that if I leave the speed at auto the frequency will switch back and forth between 208MHz and 624MHz, as a result the read speed on the SanDisk card dropped down to 0.72 MB/sec).
Needless to say that my lexar card is going into my Digital Photo Camera, with a writing speed consistently at 11x that of the Kingston and SanDisk.... well, need I go on? Actually I had to run the test 3 times because I couldn't believe that the Lexar had such a high read speed compared to the other cards.
Wow, that took a while, but here it is....
BTW, I noticed (as I'm writing this article i ran another test with the Sandisk Card in the cradle and the read speed jumped from 0.92 MB/sec to 1.02 MB/sec..... interesting.....)
All the benchmarks I've seen here show write speed between 0.1X and 0.8X and read speed between 3x and 10x. Now I have a question, is Axim's hardware the bottleneck, or the windows mobile flash driver the bottleneck?
If it's the latter, maybe WM2005 or later OS would provide flash memory access improvement?
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BAS+@RDS!! 
Sandisk Ultra II 1Gb
Great Thread Peeps!
