topic Re: X25-M 80GB low 4k read in Archive

X25-M 80GB low 4k read

idata — Mon, 22 Mar 2010 20:55:02 GMT

Hi all,

I've been testing my new system that has an Intel X25-M 80 gb and I seem to be getting a lower 4k read value than most benchmarks I see, usally around 19/20 MB/s while mine is 14MB/s.

This is on a fresh windows 7 x64 instalation, asus p7p55d motherboard and a I5-750 cpu. Sata option in BIOS with AHCI when installing windows.

- system restore off

- index off

- hibernation off

I've read all the related threads here and more and still no solution.. any ideas?

thanks in advance

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 01:54:54 GMT

I have the exact same drive and my results are very similar to yours. My 4K read is 15.17

This is on a Windows 7 Pro 64 bit clean install. System restore, hibernation all off. Although I still have the previous firmware 02HA.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 10:29:24 GMT

Don't know if this is relevant but I seem to have duplicate entries in my device manager.. Didn't noticed this before this last windows instalation but speeds were the same as they are now.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 11:02:41 GMT

I get the same scores as you. Have you tried using the default msahci driver instead of the intel? The msahci driver supports automatic trim in win 7.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 11:16:43 GMT

I am using the default windows msahci driver as you can see in the benchmark screenshot.

I think the additional controller appeared when I installed the chipset driver of my motherboard. I did run the benchmark tool before the instalation of the chipset and the results are almost identical.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 18:33:12 GMT

When installing Windows 7 with BIOS set to AHCI, you don't have to install any chipset drivers, at least I didn't. You should have the Standard AHCI 1.0 Serial ATA Controller when using msahci driver, not that Intel Controller--which probably is the reason for your sub-par AS SSD benchmark result.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 19:10:37 GMT

Didn't know that, thanks. Removed them now.

but like I said in the previous post, I did run the benchmark before I installed the chipset driver and the results were identical, the 4k read always around 14 MB/s.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 19:23:20 GMT

Did you have both the msahci driver and the Standard AHCI 1.0 Serial ATA Controller?

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 19:38:25 GMT

In addition to the above, do you have Disk Defragmenter turned off or disabled for your SSD?

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 20:44:17 GMT

Yes, disk defragmenter turned off and the standard AHCI 1.0 Serial ATA controller

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 22:11:56 GMT

Deleted.

Message was edited by: ambizytl

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 22:14:21 GMT

Run the optimizer one time and then run AS SSD and let's see what happens.

Re: X25-M 80GB low 4k read

idata — Tue, 23 Mar 2010 22:43:05 GMT

Thanks for trying to figure this out ambizytl

just did that but unfortunately the results were the same.

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 00:16:39 GMT

What port is your SSD in? Does your motherboard manual specify more than one SATA group of ports, such as 0-3 are this SATA and 4-6 are that SATA?

Post another picture of Device Manager, and a picture of what shows in Disk Management.

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 00:31:10 GMT

In addition to the above, did you restart the computer after switching AHCI controllers?

There was another person who had same 4K problem as you and reinstalling Windows 7 solved the issue. As a last resort, I would suggest reinstalling Windows with your other two mechanical drives disconnected, or you can try disconnecting the two mechanical drives and see if that makes a difference.

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 10:41:11 GMT

Hi,

My SSD is in the first SATA port of the motherboard (SATA_0). Read the manual of the board, ASUS P7P55D, and it doesn't mention any SATA groups, only 6 x SATA 3.0 Gb/s ports.

I did restart the computer after switching the AHCI controllers.

This is my 3rd clean install of windows 7 and did installed it with my other drives disconnected, only the DVD drive was connected. This screenshot of the benchmark was made right after the instalation with no other hard drives connected, no motherboard/chipset drivers installed and only the DVD drive and SSD connected:

The other two pictures you requested:

Thanks once more

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 13:22:07 GMT

Did you reconnect the other drives before testing?

I don't understand why you have that 100 MB Reserved Primary Partition--I don't have it, I have just one Partition. Did you format the drive before reinstalling Windows 7? I suggest you format the SSD in Windows 7 and don't create a second Primary Partition--let it all hang out for one partition.

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 13:40:10 GMT

I think low 4k read speed is 99% hardware issue. At this topic me and TS have both Intel P55 motherboard.

I have similar results as TS on my home computer. Which is: Gigabyte GA-55A-UD4. I have tried all modes and drivers, AHCI, IDE, RAID. And tried Win 7 x64, x86 and Win XP x64. All setups gives around 15 Mb/s 4k read speed. Then I connect same SSD to Biostar TP45i. And get result on screenshot

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 13:49:03 GMT

Your result shows BIOS not set to AHCI, so why post it? BIOS should be set to AHCI. I don't understand why you would run SSD in IDE when it is has been clearly suggested to use AHCI for best results.

I don't know about the P55 being the problem, could be, but I still don't know why he has two Primary Partitions with one 100 MB Reserved Primary Partition. I would at least like to see what happens when he has just one Partition.

Re: X25-M 80GB low 4k read

idata — Wed, 24 Mar 2010 13:50:46 GMT

You don't show your firmware revision in the picture.