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Keeps switching to PIO mode from DMA5

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Keeps switching to PIO mode from DMA5

Postby ATechGuy » Tue Apr 17, 2012 8:06 am

My ZT2 (60GB) is about six months old and has about 15-16GB free. Lately, it seems it is pausing, and the disk controller senses a time-out, and so it shifts down to using PIO mode. It's a Dell 430, running Xp SP3.

firmware rev: VATT1711

The Smart monitor stats look like this:
(if it's not listed, it's zero)

Average Erase Count: 40.1740
Write Amplification factor: 6.4229

Total Sectors: 117,440,512
Accumulated NAND1 ECC Control - Correct Count : 147,356,618
Accumulated NAND2 ECC Control - Correct Count :159,352,667
NAND1 ECC Control - Correct Count : 258,222,
NAND2 ECC Control - Correct Count : 265,953
Accumulated Read Sector: 4,602,199,778
Accumulated Write Sector: 834,531,939

I gather, the issue is probably of one of garbage collection that is taking time to clear, and so it gets a timeout. If it's of any help, the WEAR tool starts, but then crashes after it lists a couple of NAND bad block items, with a divide by zero error. I can expand the two it lists and the expansion goes on for quite a while.

And finally, I decided to try running the SSD Tool, but when I select my drive, it tells me:
Alignment Bad. Offset:54.90966796875 MB. So for the moment, I haven't clicked on the Trim Freespace button yet, and I'm looking for advice.

In DMA mode, this drive is SUPER. No complaints. Made a D430 into a new laptop. But when it shifts back to PIO mode, well, as you might imagine, it's a LOT worse that the original HDD, which had gotten a LOT slower than when new.

Since the drive is still under warranty, I'm looking for some guidance on what to do next.
Thanks for your help,
Ken
ATechGuy
 
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Postby SSD-James » Tue Apr 17, 2012 10:58 am

Well,
We are preparing new firmware update for that solution.
Please wait for a couple of week.
I will post the new firmware.

Thanks,
James
SSD-James
 
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Postby ATechGuy » Wed Apr 18, 2012 12:00 pm

Thanks James,

Any suggestions how to keep it out of PIO mode while we're waiting? Should I just try the ResetErrorCountersOnSuccess registry trick? The problem is for a client of mine and she isn't very computer savvy so I can't have her uninstalling the drive every time this happens.

Thanks,
-Ken
ATechGuy
 
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Postby SSD-James » Wed Apr 18, 2012 2:55 pm

We do not have that solution at this moment.
But just send me an e-mail in 2 weeks so that I can send you the firmware updater.

Thanks,
James
SSD-James
 
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Postby ATechGuy » Mon May 07, 2012 7:25 am

Not sure if the private message send actually happened. It shows one sent message, but also shows one message still in my outbox. Anyway, it's been a couple of weeks and I was wondering if you happen to have the firmware update.

Thanks,
-Ken
ATechGuy
 
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Joined: Tue Apr 17, 2012 7:44 am

Postby SSD-James » Mon May 07, 2012 4:20 pm

Firmware update is not fully experimented yet.
Please Wait a little more.
Thanks for your patience,
SSD-James
 
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Postby ATechGuy » Mon May 21, 2012 6:07 am

Been another two weeks. Any change in the wait status?

Thanks!
ATechGuy
 
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Joined: Tue Apr 17, 2012 7:44 am

Postby SSD-James » Mon May 21, 2012 7:26 am

We are almost ready to release it.
Please wait.
We are so busy for prepating the Taiwan computex show.
Sorry for the delay.
SSD-James
 
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Postby SSD-James » Mon May 21, 2012 3:29 pm

Please upgrade the firmware:
viewtopic.php?f=77&t=11638
SSD-James
 
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Postby Sokrates42 » Sat Jun 01, 2013 7:57 am

Hi!

I have a FHM28GW25H SSD in an old Samsung Labtop (NP-R50 E) with the same Problem.

Operating System is Windows XP SP3, all patched.

The drive is fast and working as long as the computer is kept busy.

As soon as the SSD is idle it seems to go to an internal "sleep mode". During waking up it produces some atapi errors in the syslog (sometimes in conjunction with a short computer freeze) and will such go into PIO mode (after 6 errors I think) and remain there.

I can reset the count and go back to DMA mode by reinstalling the ide primary channel driver in the hardware manager.

I tried lower UDMA and normal DMA modes but the behaviour stays the same.

The laptop has all energy management disabled. The "sleep" mode is probably SSD internal.

Chipset is Pentium M with centrino, HD controller is a Intel(R) 82801FB/FBM Ultra ATA Storage Controller - 266 F

Any chances for a fix or do I have to return the drive and trash the computer ?
Sokrates42
 
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