X25M Low Benchmarks

[Hoainam]

Hey everyone, I was hoping someone could maybe shed some light on a problem for me.

I just installed an X25-M Gen2 and it doesn't seem to be hitting the speeds that it should. I posted screenshots of the benchmarks below.

My system is an i5 system with a Gigabyte P55-UD3L Motherboard. My BIOS mode is currently set to IDE instead of AHCI, but I think even with that I should be hitting read speeds in the 200+ MB/s range right?

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[gracefully]

Try setting the SATA mode to AHCI first. But before that, make sure that your OS is configured to load AHCI drivers. follow this guide: http://support.microsoft.com/kb/922976

 

[Hoainam]

Try setting the SATA mode to AHCI first. But before that, make sure that your OS is configured to load AHCI drivers. follow this guide: http://support.microsoft.com/kb/922976

I switched it over to AHCI and did a clean install of Win7. It is faster, but still not what I should be getting out of an X25M G2. AHCI benchmarks are below.

Thoughts?

 

[gracefully]

I'm at a loss here. The write speed is just about right. But the read speed... according to AnandTech: http://www.anandtech.com/cpuchipsets/showdoc.aspx?i=3607&p=4

It should be about 250 MB/s. Maybe it's your SATA controller that can't handle the X25-M. 200 MB/s is 2/3 the max throughput of SATA 3Gbps.

 

[Hoainam]

I was able to fix it by switching the SATA port it was plugged into on the motherboard. On my Gigabyte P55-UD3L motherboard there are 8 SATA ports total. From the manual:

Intel® P55 Express Chipset:
6 x SATA 3Gb/s connectors (SATA2_0, SATA2_1, SATA2_2, SATA2_3, SATA2_4, SATA2_5) supporting up to 6 SATA 3Gb/s devices
Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10

GIGABYTE SATA2 chip:
1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices
2 x SATA 3Gb/s connectors (GSATA2_0, GSATA2_1) supporting up to 2 SATA 3Gb/s devices
Support for SATA RAID 0, RAID 1, and JBOD

I was using one of the Gigabyte SATA2 Chips SATA ports, I switched it to one of the P55 SATA ports and all is good now. I have no idea why it would matter, but it does for some reason.

 

[gracefully]

Ah, I didn't think of that.

Your drive should be on the first SATA port of the P55 chipset. Glad to know you solved it.

 

[Hoainam]

Best answer selected by Hoainam.