|Item model number||CT256M550SSD1|
|Hardware Platform||PC: Mac: Linux|
|Item Weight||5 ounces|
|Product Dimensions||5.12 x 0.75 x 5.12 inches|
|Item Dimensions L x W x H||5.12 x 0.75 x 5.12 inches|
|Flash Memory Size||256 Unknown modifier|
|Hard Drive Interface||Serial ATA-600|
|Is Discontinued By Manufacturer||No|
|Date First Available||March 18, 2014|
(OLD MODEL) Crucial M550 256GB SATA 2.5" 7mm (with 9.5mm adapter) Internal Solid State Drive - CT256M550SSD1
We don't know when or if this item will be back in stock.
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- Load files and programs almost instantly
- Boot up almost immediately
- 550 MB/s sequential reads, 500 MB/s sequential writes, 90k random reads, 80k random writes
- Download massive files in seconds rather than minutes
- Manage power so your battery lasts longer
- Store lots of data - available in capacities up to 1TB
- Compatible with PC and Mac systems
- Encrypt and protect personal data against loss or theft
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Micron M550 256GB SATA 6Gbps 2.5" Internal Solid
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I was stop receiving windows update after clone ...
Go to control panel and type windows update and see if it's red or green.. if it's red and say windows update service is not running than you have issue... here is process
To replace possibly malfunctioning manufacturer-specific Serial ATA drivers or a non compatible SATA Driver we need to replace it with Microsoft's MSAHCI or StorAHCI drivers which may have better functionality/compatibility in your system, use the following guide:
1. Enter Device Manager in Windows via either your Control Panel or Computer Management.
2. You should see a category of "IDE ATA/ATAPI controllers or Storage Controller driver". Click the 'plus' symbol to the left of this line to expand that category.
3. All manufacturer drivers under this category will appear. For each entry, right click, select 'Update driver software'
4. Then you need select browse my system.
5. Then select pick from list of drivers.
6. Select the "Standard AHCI 1.0 Serial ATA Controller"
7. Then click next and the system will reboot and the driver will be swapped and you can go back in there to confirm that.
I've read FAQs from Micron (the maker of Crucial drives), updated its firmware (which had to be done in DOS, using an ISO image burned to CD to create a bootable CD since Windows won't recognize the drive), downloaded the "Crucial Executive" software (which also failed to see the drive), repeatedly cycled the power on for two hours and off for five minutes to reactivate the firmware (apparently a common problem with Crucial drives - as I feared, my older M500 also subsequently died and this power cycling revived it, at least long enough to copy everything off of it), and the best I could do was to occasionally have Windows pop up a drive found message followed by a could not format error (and still not appearing in Device Manager or Disk Management). Since the drive is recognized by the BIOS during bootup, on a hunch I tried booting from an Acronis Backup CD and sure enough, the files appeared; as I type this I am attempting to have Acronis "back up" (with the intention to immediately "restore") the files. How frustrating is that? The files aren't gone, but neither Windows nor the software from the SSD manufacturer can find them.
EDIT: Upgrading from two to three stars, as I now strongly suspect that the drive(s) did not fail on their own. A few weeks later, the entire computer stopped turning on, which turned out to be a bad power supply. The clue was the Micron FAQ about the power cycling, which is described by the FAQ as a way to sometimes bring a Crucial drive back after it has been exposed to inconsistent power.
But three stars is the most they'll get - my much older STEC drive (my swap drive - heavy use!) and main Kingston (O/S partition) were on the same power supply and neither one even hiccuped while both Crucials died.
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I decided that the only appreciable improvement available to me on this equipment would be to replace the main internal drive with an SSD equivalent. Research suggested that in addition to the small (128GB) capacity Crucial SSD which has housed my programs for the past 18 months I could gain a further benefit by hosting all of the data handling facilities and major data storage on a second SSD... I have been happy with the original Crucial device and so was encouraged to consider the Crucial M550 as one of the main options. Other contenders for my business included components from Samsung, LaCie etc. The largest possible SSD available when I made my selection was 1TB which did restrict selection somewhat. Reviews from previous users suggested both Crucial and Samsung products were likely to give good results - at very competitive prices for their hardware.
Having been highly satisfied with my first (128GB) Crucial SSD it was an easy choice to go for their 1TB M550 device.
Purchased via Amazon I had the new drive fitted by my local hardware specialist who also cleaned-up my data hosting and removed some of the load on the original SSD which now houses only data management routines, program files, program files (x86) and program data files. This occupies approximately 70GB of the available 110GB on the formatted 128GB drive.
The new (in January 2015) 1TB SSD is currently occupied to a 55% level by all data intensive and speed sensitive data files including my casting simulation work, my photographic archives (all photos taken since 1997 when I moved to digital media) and all major documentation for my company operation.
In the ten week period since the system became operational no difficulties have been detected and the additional speed of operation has greatly enhanced the productivity of my day to day simulation work, as well as speeding up other data intensive activities such as photograph manipulation using Adobe Photoshop Elements 13.
The price of hardware in this class is obviously higher than the equivalent conventional drives but at the £334 which the 1TB version of the Crucial M550 cost me in January 2015, I considered to be very good value for money. My hardware engineer echoes this opinion.
Subsequent day to day operation of the now Twin-SSD equipped Chillblast desktop has confirmed that the machine is substantially quicker in all operations and has enabled me to improve the data security because read/write operations are now rather quicker than previously. All data on my large SSD is now copied onto a 2TB conventional Internal Drive and onto a free standing 2TB external drive.
In conclusion a very satisfactory purchase.
Boot time into windows 7 using a disk based hard drive 5 minutes plus, and could not view the internet until at least that time has passed.
Boot time with this under 30 seconds, and I can open a web browser and start surfing in under 20 seconds.
The PC is more responsive - programs open when I click on them rather than seconds later.
PC is not old, 6 cores at 3.8Ghz each, 16Gb ram, and 2Gb graphics card.
(it is also really very small, I was expecting it to be hard drive sized, rather than matchbox sized, I know it is 2.5" but it is very very thin. A 512gb 3.5" drive is huge in comparison.)
It ships with no software. Not a big issue, as there are plenty of free (or free trial) programs that are more than up to the job of migrating your operating system and data from your old drive to this.
I used Paragon Disk Manager 14 to clone the hard drive and this failed initially as:
1) My virus software prevented a file from being created - if you use Paragon, make sure to trust it in your virus software.
2) The computer went to sleep during set up and was impossible to reawaken so with no screen, I could not tell what stage the software was at. Check you power options and turn off sleep mode temporarily and do the cloning with the laptop plugged in.
My second attempt went flawlessly and after installing the Crucial disk, the laptop booted up perfectly and all my programs/data appear to operate normally.
Upgrading to an SSD is the single best change you can make to a computer. My three year old Dell now boots Windows 8.1 to ready to use (including time to type my lockscreen password) in 25 seconds. Programs open virtually instantly and the machine is generally transformed.
In short, I am very happy with the SSD. The Paragon hard disk manager eventually did what it said on the tin but I felt it could have warned me regarding issues with AV software and sleep mode if there was a user friendly instruction manual.
Installation into my Dell XPS L502X laptop went without a hitch and I decided to install Windows 7 from scratch. It's advisable to turn indexing off, Windows Search and defragmenting. Installation went marginally quicker than a standard drive installation and bootup was comparable to the hybrid drive, around 21-23 seconds from "On" to desktop. This is faster than my Samsung tablet!
Battery life has increased slightly and the drive is no hotter than the hybrid it replaced. Windows operations are fast and the experience index went from 5.9 to 7.9.
Have had this drive for 9 months now and there have been no problems, no slowdowns and no crashes to speak of. It's also nice not to have to check to defrag the drive. I don't think I could cope with a standard hard-drive ever again.
That's £150 odd spent upgrading my Macbook Pro + £60 on another 4MB in RAM to bring it up to 8MB. However that's still money well spent.
I've now got a 1 TB machine, where I can load countless audio and video files onto my spare hard drive. Most importantly, what they say is true - having an SSD significantly improves speed and performance. My machine boots up in 30 secs and not two minutes, and I notice a real difference when opening up and motoring through apps.
Result - I can get another 1-2 years out of this Mac without buying a new one.
> Disk Sequential 64.0 Read 488.63 MB/s
> Disk Random 16.0 Read 316.46 MB/s
> Disk Sequential 64.0 Write 455.44 MB/s
> Responsiveness: Average IO Rate 0.41 ms/IO
> Responsiveness: Grouped IOs 6.46 units
> Responsiveness: Long IOs 0.94 units
Keep in mind I did it on a C drive while having some applications open which worsened the results so you should expect the results to be better.
I bought this SSD as it seemed like the best for the price, lower cost SSDs didn't seem as fast as a modern SSD should be while this one is still not all that expensive (considering prices of SSDs) and it's quality is great. Highly recommended.
Ensure you back up all data before installation and create a USB boot disk. Setup is then really straightforward. I advise that you download a fan controller and TRIM Enabler software to maximise the potential of the new drive and to keep fans running at a sensible (and quiet) speed.
I changed the standard drive in my daughter's early 2011 MBP - for the Crucial M550 512GB.
Using the NewerTech Toolkit (from Amazon), the process is simple and straightforward.
Read/Write speeds have radically improved, from around 40Mb to typically 500Mb.
System startup has vastly improved, from around 2 minutes to just 7 seconds.
Whether it's MS Office or Adobe CS, apps open in moments.
My advice: if you can afford it, just do it!
If I was to have 1 gripe with this drive (and this is the most minor of things), is the bottom of the drive is technically the side with the brand sticker (as shown in the picture) which means for PC cases where the SSD's are visible, the unattractive information sticker will be facing upwards, although this won't be an issue for the majority of users.
To ensure compatibility go onto the Crucial website and run their checker and it will tell you if the drive is suitable for your computer.