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vr2vdg
Blue Screen Again
Posts: 5
Registered: ‎06-04-2013
Location: hong kong
Views: 1,252
Message 1 of 7

x220 sd reader with toshiba exceria type 2 problem

the transfer rate drops a lot when the block size >= 1024KB

no matter format the sd card to fat32, ntfs or exfat

 

For example:

128KB : R77MB, W34MB

256KB : R83MB, W42MB

512KB : R85MB, W52MB

1024KB: R85MB, W21MB

2048KB: R85MB, W21MB

4096KB: R85MB, W21MB

8192KB: R85MB, W21MB

 

does anyone has the same problem or the solution?

 

computer: x220

cpu: i7-2620m

ram: 8GB

hdd: crucial m4 128GB ssd

reader: Ricoh PCIe SD reader (x220 built-in)

sd card: toshiba exceria type 2 32GB (max. R95MB, W60MB)

OS: windows 7 ultimate x64

Community SeniorMod
Community SeniorMod
Posts: 3,340
Registered: ‎12-01-2007
Location: US
Views: 1,232
Message 2 of 7

Re: x220 sd reader with toshiba exceria type 2 problem

Hello,

 

I found the specs for the Toshiba UHS Exceria SD Cards here on Toshiba's web site.

 

Do you have another card reader or SDXC card you can test with to help determine if the problem is with the card or the card reader?

 

Does it make a difference if you disable (or even uninstall, temporarily, for troubleshooting purposes) your security software?

 

Regards,

 

Aryeh Goretsky

 



I am a volunteer and neither a Lenovo nor a Microsoft employee.

L380 YogaP72 (20MB-*)P50 (20EN-*)S230u (3347-4HU)T23 (2648-LU7)T42 (2378-R4U)T43p (2678-H7U)T61p (6459-CTO)W510 (4318-CTO)W530 (2441-4R3)W530 (2441-4R3)X100e (3508-CTO)X120e (0596-CTO)X220 (4286-CTO)X250 (20CM-*)Yoga 370

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vr2vdg
Blue Screen Again
Posts: 5
Registered: ‎06-04-2013
Location: hong kong
Views: 1,226
Message 3 of 7

Re: x220 sd reader with toshiba exceria type 2 problem

thx for reply.

 

i tested it with the clean windows recovery image (no antivirus or anything else)

also, i used a usb 2.0 reader to test the sd card. the write speed can achieve 30MB.

i thought this may be a common issue of the built-in reader.

because i found another case in Taiwan with the same card (toshiba exceira type 2 32GB + x220) and the issue also exists when i used another model sd card from toshiba (exceria type HD microSD 32GB, R95/W30)

 

Taiwan case : sandisk extreme pro (45MB) -> R43/W37

                           toshiba exceria type 2 (R95/W60) -> R85/W20

 

futhermore, i tried to turn on/off windows file write cahce which is useless.

 

vr2vdg
Blue Screen Again
Posts: 5
Registered: ‎06-04-2013
Location: hong kong
Views: 1,185
Message 4 of 7

Re: x220 sd reader with toshiba exceria type 2 problem

my case : x220 + toshiba exceira SD

 

 

another case of x230 + toshiba exceria SD card was found

 

 

Taiwan case : x220 + toshiba exceira type 2

 

Normal speed of this SD card:

Community SeniorMod
Community SeniorMod
Posts: 3,340
Registered: ‎12-01-2007
Location: US
Views: 1,181
Message 5 of 7

Re: x220 sd reader with toshiba exceria type 2 problem

Hello,

 

To help troubleshoot things further, can you try a different operating system, such as by booting from a Linux Live CD/USB disc image?  That  can help us figure out whether we are dealing with a software or a hardware issue.

 

Regards,

 

Aryeh Goretsky

 



I am a volunteer and neither a Lenovo nor a Microsoft employee.

L380 YogaP72 (20MB-*)P50 (20EN-*)S230u (3347-4HU)T23 (2648-LU7)T42 (2378-R4U)T43p (2678-H7U)T61p (6459-CTO)W510 (4318-CTO)W530 (2441-4R3)W530 (2441-4R3)X100e (3508-CTO)X120e (0596-CTO)X220 (4286-CTO)X250 (20CM-*)Yoga 370

  Communities:   English    Deutsche    Español    Português    Русскоязычное    Česká    Slovenská    Українська   Język Polski    Moto English

vr2vdg
Blue Screen Again
Posts: 5
Registered: ‎06-04-2013
Location: hong kong
Views: 1,154
Message 6 of 7

Re: x220 sd reader with toshiba exceria type 2 problem

Ubuntu 13.04 desktop x64

 

Link to picture

 

Moderator note; picture(s) totalling >50K converted to link(s) Forum Rules

vr2vdg
Blue Screen Again
Posts: 5
Registered: ‎06-04-2013
Location: hong kong
Views: 1,139
Message 7 of 7

Re: x220 sd reader with toshiba exceria type 2 problem

x220 + toshiba exceria type HD microSDHC 32GB

microsd.png

 

x220 + toshiba exceria type HD SDHC 16GB

sd.png

 

 

 

i thought the sd reader of x220 doesn't support UHS-1 well. The transfer rate drops when block size >=1024KB with three different card (all toshiba exceria series: Type 2 SDHC 32GB R95/W60, Type HD SDHC 16GB and Type HD microSDHC 32GB)

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