Solid State Drives (SSD)

[Dionysos]

Obviously the latest firmware 000F fixes the decrease of speed. Windows Update Tool didn't work (Why?), so I flashed the firmware from USB.

AS SSD shows a score almost as high as it was when I installed it.

Acc. time for Write increased but i doubt it has any effect on performance.

Screenshot:

I bet my replaced "faulty" SSD also works fine with that firmware... 

[GeneO]

0F didn't fix mine

[toor]

Didnt fix mine either... have 4 of them in R0

[davids80]

I have a Crucial M4 64GB since 07/11. It was built into a SATA III system.

My computer:
- AMD Phenom II X2 550 @ X4 B50 @ 3,5 GHz
- ASRock 870 EXTREME3
- TRANSCEND DDR3 2x2GB 1600 MHz @ CL7
- Windows 7 Home Premium (64bit)

I also have a problem with low 4k-64Thrd.

Results on the day of purchase (07/2011):

Test (10/2011):

Test (02/2012) low 4k-64Thrd:

Test (02/2012) the disk format:

Test (04/2012) latest firmware 000F

 
I don't understand

[Marc]

I don't know if it will help but with FW 000F i've got some strange thing on my Crucial M4 128 GB on P67 motherboard.

I'm testing it with IOMETER

- First, it fillfull the SSD with the iobw.tst file

- If i test random or sequential 4K read with QD32 on that file i'm limited at 35 to 36K IOPS

- If i disconnect and reconnect the M4 i'm at 75K IOPS in both case

- If i do just a 5s write test then the 4K read QD32 are limited to 35 to 36K IOPS unless i disconnect/reconnect the drive

[Crucial_Junket]

Hello everyone,

I have been keeping an eye on this thread and we are going to investigate these issues further.  So we can test these problems as much as problem could you please confirm as much as the following information as possible.

SSD Capacity (64,128,256,512):

How much free space do you have left on your drive:

Firmware revision:

Have you tried different SATA ports:

Have you tried different SATA cables:

SATA II or SATA III:

How long have you had the drive:

Do these drops in benchmarking reflect real world drops in performance:

We are going to investigate this fully so if you could confirm the details above and also any information you think would be relevant.

[MJF]

I have the same problems reported in this thread

SSD Capacity: 127,817,216,000

Free Space: 77,422,178,304

Firmware revision: 000F

Sata Ports: First 2 physical ports are Marvel. Marvel has been disabled . Next 2 physical Ports are Sata 3 (6Gb/s). Both Sata 3 ports have been tried.

Sata cables: tried 2 ASUS Sata 3 cables (white tip)

Age: Puchased 3 months ago (19 Jan 2012)

Real World Performance effects: Difficult to tell as this is the only performance I know. But very Disappointing!

Motherboard: ASUS P8Z68 Deluxe. (Intel Z68 Express chipset.

Prior FW was 0309. Essentially same results except AS-SSD Acc time write dropped from .20ms to .37ms. This was consistent to 2 decimal places in > 10 test runs.

Aside: Crucial advise that SSD technical support outside of the Forums is via telephone only. Not really practical if you live outside of North America.

[GeneO]

---

Crucial_Junket wrote:

Hello everyone,

I have been keeping an eye on this thread and we are going to investigate these issues further.  So we can test these problems as much as problem could you please confirm as much as the following information as possible.

SSD Capacity (64,128,256,512):

How much free space do you have left on your drive:

Firmware revision:

Have you tried different SATA ports:

Have you tried different SATA cables:

SATA II or SATA III:

How long have you had the drive:

Do these drops in benchmarking reflect real world drops in performance:

We are going to investigate this fully so if you could confirm the details above and also any information you think would be relevant.

---

128 GB M4

55 GB free space

This has happened in 309 and nwow 0F firmware

SATA III, but occured on SATA II as well

Yes, different ports, different Motherboard, different cables

Yes they affect boot speed

If I secure erase, the improvement in perfromance is quite impressive, but it only lasts a little while

I have had the drive over 6 months. The problem started occuring after about 3-4 months

Right after secure erase and reload of OS followed by current  performance:

[MJF]

In my case a secure using Parted Magic produces the same apparent poor results.

AS-SSD run in Safe Mode produces only a very marginal improvement.

[kevindd992002]

If I understand correctly, this problem shows up after long time use of the drive?