koreec Posted January 20, 2009 Share Posted January 20, 2009 Hello the RAM GUY, I recently bought a new USB flash Voyager 16GB (non GT). And the write speed is a little disappointed. I made a few tests using the suggestions form other posts. Here are my results: SDFormatter 2.0.0.3 Please note that FLASH ERASE ON is not supported on 16 GB (not GT) Voyager (according to the program warning message) Full Format Option HDBench speed test results: Read Write RRead RWrite Drive 31200 9374 30899 364 F:\100MB Actual speed ~4Mb/sec file size 1400 Mb Time 5 min 50 sec Quick Format option HDBench speed test results: Read Write RRead RWrite Drive 30476 7691 29115 362 F:\100MB Actual speed ~4.3 Mb/sec file size 1400 Mb Time 5 min 25 sec Full Format Option Format size adjustment ON HDBench speed test results: Read Write RRead RWrite Drive 30750 8191 29124 360 F:\100MB Actual speed ~4.1 Mb/sec file size 1400 Mb Time 5 min 38 sec FORMAT F: /FS:NTFS /A:16K Insert new disk for drive F: and press ENTER when ready... The type of the file system is FAT32. The new file system is NTFS. Verifying 15420M Format cannot run because the volume is in use by another process. Format may run if this volume is dismounted first. ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID. Would you like to force a dismount on this volume? (Y/N) Y Volume dismounted. All opened handles to this volume are now invalid. Volume label (ENTER for none)? Creating file system structures. Format complete. 15790064 KB total disk space. 15724128 KB are available. HDBench speed test results: Read Write RRead RWrite Drive 17999 7489 25897 1449 F:\100MB Actual speed ~1.2 Mb/sec file size 1400 Mb Time ~ 20 min FORMAT F: /FS:NTFS /A:512 Insert new disk for drive F: and press ENTER when ready... The type of the file system is FAT32. The new file system is NTFS. Verifying 15420M Volume label (ENTER for none)? Creating file system structures. Format complete. 15790079 KB total disk space. 15720488 KB are available. HDBench speed test results: Read Write RRead RWrite Drive 24818 4569 24179 349 F:\100MB Actual speed ~1.2Mb/sec file size 1400 Mb Time ~22 min FORMAT F: /FS:FAT32 /U Insert new disk for drive F: and press ENTER when ready... The type of the file system is NTFS. The new file system is FAT32. Verifying 15420M Format cannot run because the volume is in use by another process. Format may run if this volume is dismounted first. ALL OPENED HANDLES TO THIS VOLUME WOULD THEN BE INVALID. Would you like to force a dismount on this volume? (Y/N) Y Volume dismounted. All opened handles to this volume are now invalid. Initializing the File Allocation Table (FAT)... Volume label (11 characters, ENTER for none)? Format complete. 15 774 656 KB total disk space. 15 774 648 KB are available. 8 192 bytes in each allocation unit. 1 971 831 allocation units available on disk. 32 bits in each FAT entry. Volume Serial Number is 6485-DF8A HDBench speed test results: Read Write RRead RWrite Drive 31343 7153 30622 359 F:\100MB Actual speed ~4Mb/sec file size 1400 Mb Time 6 min 5 sec FORMAT F: /FS:NTFS /U Insert new disk for drive F: and press ENTER when ready... The type of the file system is NTFS. Verifying 15420M Volume label (ENTER for none)? Creating file system structures. Format complete. 15790076 KB total disk space. 15723848 KB are available. HDBench speed test results: Read Write RRead RWrite Drive 24179 3777 22207 346 F:\100MB Actual speed ~1.1 Mb/sec file size 1400 Mb Time ~24 min 30 sec The only thing I found about write speed is http://www.ciao.co.uk/Corsair_Flash_Voyager_USB_2_0_USB_flash_drive_16_GB__6627787 There is a product description as well as user review. In product description you can find that declared write speed is 7Mb/s (in the review you can find 5.5 Mb/s). Also you mentioned that 8 Mb/s is according to specs. However what should I take into account when comparing the speeds: the write speed that shown in HDBench or the actual write speed? The maximum I get for my 16 Gb Voyager is 4.3 Mb/sec. Do you think that it is a normal write speed for this device? Thank you in advance for you response Link to comment Share on other sites More sharing options...
Corsair Employee RAM GUY Posted January 20, 2009 Corsair Employee Share Posted January 20, 2009 Please try and format the drive with the Format utility from the SD-CARD Organization. Then run the test again and see if that helps. Then remove the drive and reinsert it and please try the HD-Bench software to test the performance. With 100MB files size The write should be about 8 MBps and read should be about 23-30MBps. If you still have problems we can get it or them replaced, please use the RMA request found in TSXpress or follow the link in my signature “I think I have a bad part!” and we will be happy to replace them or it! Link to comment Share on other sites More sharing options...
CurlySue Posted January 27, 2009 Share Posted January 27, 2009 Hello the RAM GUY, In product description you can find that declared write speed is 7Mb/s (in the review you can find 5.5 Mb/s). Also you mentioned that 8 Mb/s is according to specs. However what should I take into account when comparing the speeds: the write speed that shown in HDBench or the actual write speed? The maximum I get for my 16 Gb Voyager is 4.3 Mb/sec. Do you think that it is a normal write speed for this device? Thank you in advance for you response Using the SD-CARD software, I achieved an average 10MB/s read speed according to HDBench 3.40 using its 100MB file. The problem with the SD-CARD software is cluster size. It formats FAT32 with 32K clusters. This is fine if your transferring large GB-sized files, but crappy if you typically transfer smaller MB- and KB-sized files. As a result, the improved speed is somewhat of an illusion. Its mostly due to a reduction in FAT writing and therefore reduced controller activity. Then there appears to be some value in locating the partition at or about 8192. This is something I am looking into currently and will report back once I have conclusive evidence that it can be done with ease and with free software. Give the SD-CARD software a try. You may get better results. CurlySue Link to comment Share on other sites More sharing options...
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