jimmissia Posted May 27, 2013 Share Posted May 27, 2013 Hi to everyone.I run ATTO and Crystaldiskmark to my new ssd disk mentioned above but the read speed is only 300mb/s and the write is 200mb/s instead of 550 and 535mb/sec.Does anyone know what is maybe the reason for that unacceptable performance?The motherboard is a gigabyte GA-880GMA-UD2H and the os is win 7pro 64.Thank you in advance. Link to comment Share on other sites More sharing options...
Nec_V20 Posted May 27, 2013 Share Posted May 27, 2013 Hi to everyone.I run ATTO and Crystaldiskmark to my new ssd disk mentioned above but the read speed is only 300mb/s and the write is 200mb/s instead of 550 and 535mb/sec.Does anyone know what is maybe the reason for that unacceptable performance?The motherboard is a gigabyte GA-880GMA-UD2H and the os is win 7pro 64.Thank you in advance. Remember the claim is always "up to xyz speed" in real terms it means that the manufacturers are lying through their teeth and you will always fall far short of those speeds. Link to comment Share on other sites More sharing options...
Incriminated Posted May 27, 2013 Share Posted May 27, 2013 @Newc_V20: No he is right, ATTO is meant to show "up to xyz"-speed, with ATTO you can see whats max. possible, other than ASSSD or CrystalDisk. @jimmissia: Do you know what speed your SATA-Controller is capable of or do we have to gather this information FOR YOU? According to the speeds you get, you have only SATA II. Try primary SATA-Controller. Man you should know your motherboard! Link to comment Share on other sites More sharing options...
jimmissia Posted May 28, 2013 Author Share Posted May 28, 2013 Motherboard is Gigabyte GA-880GMA-UD2H (SB850) http://www.gigabyte.com/products/product-page.aspx?pid=3632#ov Link to comment Share on other sites More sharing options...
Toasted Posted May 28, 2013 Share Posted May 28, 2013 Have you tried a different SATA port and SATA data cable? Latest BIOS and drivers? Check your BIOS settings and see if there are any settings which enable SATA 3 Mode. Link to comment Share on other sites More sharing options...
jimmissia Posted May 28, 2013 Author Share Posted May 28, 2013 I have try another cable but no another port as all 5 ports are the same. Link to comment Share on other sites More sharing options...
jimmissia Posted May 28, 2013 Author Share Posted May 28, 2013 firmware of the disk is 5.05a and the bios of the motherboard is the first initial release version F5 and the last(there is no new release). Link to comment Share on other sites More sharing options...
Incriminated Posted May 28, 2013 Share Posted May 28, 2013 Your results are absolutely normal. 1. Your ATTO screenshot shows me that your SSD is drive G:\ 2. Your specs show me that you use the SSD as 3rd disk. 3. You might have a Flash-drive at eSATA 3Gbps that your windows uses to "ReadyBoost" your slow HDD 4. You high likely have superfetch, prefetch and disk defragmentation running. 5. All drives are connected through one and the same bus while you bench the hell out of your writecycles. Anyhow you will high likely have max speed only when you use SATA3 6Gbps very first port (the upper left one) considering it's an AMD SB850 controller ;): Are you sure there is no option in BIOS to enable SATA3? Try disabling the eSATA (3Gbps) support? Voila? If it still not satisfy you: Try unplugging all other disk, install OS on the SSD and test it again, because your Windows running on a slow HDD may cause slowdowns to the bus. Using it as OS-drive will increase your system-performance by a large factor even when the "slow"-speed persists. Using SSDs as storage-drive actually is a bit pointless. Update: Make sure to install latest AMD-SATA-Driver and CHipset driver: http://support.amd.com/us/gpudownload/embedded/Pages/embedded_windows_all.aspx http://support.amd.com/us/gpudownload/windows/Pages/raid_windows.aspx#2 (Choose "Chipset" not raid) Link to comment Share on other sites More sharing options...
jimmissia Posted May 29, 2013 Author Share Posted May 29, 2013 Thanks for your help BUT:There is no drive for ready boosting.Also you are right that there are 2 disks configured with raid 0 on sata ports 0 and 1.Port 2 is sata dvd-rec port 3 is corsair ssd and port 4 is unnusable.I have no e-sata device coonected also.There is no prefetch or superfetch or defrag enabled.Please check my attachments.Thank you very much for your responce and sorry for my poor english. Link to comment Share on other sites More sharing options...
Incriminated Posted May 29, 2013 Share Posted May 29, 2013 Arf yap i forget to point to my reference D:) Bios-Mode-Setting AHCI (not RAID) Of course your Sata-Controller Mode is not "AHCI" but "RAID" (that "should" be AHCI-compatible). It should be quite clear to you that running a Firmware-Raid0 on a single Sata-Bus will not enable you to get full performance out of attached storage-SSD. Thanks for that info, added to my reasons not to choose a FW-raid ;): Your english is not the problem :): Regarding any performance-issues that to not apply to BIOS-Sata-Mode AHCI but only in other mode (i.e. RAID) you have to ask the chipset vendor. In fact you should be amazed how fast it is still :D: Link to comment Share on other sites More sharing options...
jimmissia Posted May 30, 2013 Author Share Posted May 30, 2013 Ok.So i am going to cancel raid 0 configuration and tested with AHCI.I lent the drive to a friend of mine and the results are fantastic so the disk is not the problem.Anyway ... YOUR HELP is much appreciated.Case closed Link to comment Share on other sites More sharing options...
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