A breakthrough in innovation, the Crucial M550 SSD is over 20 times faster than a typical hard drive* and consumes significantly less power. It enables your computer to boot up almost immediately, load files and programs almost instantly, accelerate demanding applications, and manage power so that your battery lasts up to 50 minutes longer.
Every manufacturer has ideas about how to deliver better performance. Some use file compression schemes, but those don’t help video, audio, or graphic files that are already compressed. Some steal system memory to improve a slow drive. The Crucial M550 treats all files the same, regardless of whether they’re compressed or uncompressed, so the specs we advertise are the same ones you’ll see in real world use: true 550 MB/s sequential reads across all file types.
Our engineers are relentless and passionate about the products they create. To deliver consistently fast write performance, they developed a more efficient and dependable way to write data called Native Write Acceleration. This technology spreads the drive’s workload across several elements, and links the controller, custom firmware, and flash storage components together, enabling you to achieve inherently faster downloads, saves, and file transfers.
Run your system longer than ever before - and use less power. Based on published specs, a common laptop hard drive uses 2.5 watts of power on an average workload, compared to 0.15 watts on the Crucial M550 (which is up to 94% more energy efficient).
If one of your videos, photos, or files happened to get corrupted, there’s a good chance it would no longer be usable. That’s why we’ve taken additional safeguards to ensure the integrity of your data. As a leading manufacturer of the flash storage components that go into SSDs, our exclusive multi-step data integrity algorithm is built into the components we use, arming them with four layers of defense against data corruption.
You probably save lots of sensitive and personal information on your computer - encrypt it and keep it safe. As a self-encrypting drive, the Crucial M550 incorporates the highest level of hardware encryption into the controller, allowing the drive to operate at full speed without the performance loss associated with software-based encryption.
Push your drive to the limit and avoid overheating, even in ultra-small, thermally constrained systems. The Crucial M550 includes Adaptive Thermal Protection technology, which enables the drive to dynamically adjust NAND activity based on usage demands. With this technology, the drive is able to maintain optimal operating temperatures, even when you overwork it.
It seems this motherboard has two SATA controllers, Intel P55 and JMicron JMB363. Try to connect your drive to one of the Intel's port (preferably the first one) so maybe the motherboard will interact with the drive better way. Also I think Intel controllers should give you much better performance than JMicron.
What is wrong,
For starters, you'll note the endurance is quoted the same for every drive size - which makes no sense because bigger drives will have higher endurance when that endurance is quoted in data size.
Secondly, it's no where near as simple as erase count times capacity. Because SSD's erase themselves in capacities known as 'erase blocks'. On older drives these were 512k each but on modern drives they're probably several MB. The specific size doesn't really matetr to the theory. What matters is that this means that a 1 bit write will cause as much wear as the erase size writes. So this means erase count times capacity is only valid for a non stop sequential write.
On the flip side, in reality, write caching means a 1 bit write probably won't be as bad as it sounds as it'll probably be grouped with other writes.
IIRC 74TB is an estimate based on some typical usage scenarios for the smallest drive size.
In reality, data size is a pointless stat for measuring drive life. It's a 'lie-to-children' stat really.
All you can really go if is the erase cycles. And even that is just an estimate. In endurance testing some drive models have lasted several times over that. But equally, just like any manufactured product, some fault could see it die tomorrow. Wear isn't that good an indicator of life. It's no more useful than expecting your car to die the moment the odometer ticks over 200,000 miles.
Last time I did the maths on my drive, the wear indicator had it lasting decades.
you can't really predict the drives life
if you did, it would be too long for you to worry about
just keep sensible backups, as you should with any storage device, and don't sweat it!
I would suggest checking for BIOS update and verifyng storage controller driver version. You can check the driver version with Device manager -> IDE ATA/ATAPI Controllers -> right click on the selected controller -> Properties -> Driver tab
Also I am not sure why your SMART screenshot has not been moderated yet but as for your SMART data it is not likely that all factors exceeded the thresholds. Please post text SMART data from CrystalDiskInfo ('Edit -> Copy' option) just please remove drive's serial number befor posting the data.
two years ago, I bought Crucial M4 128GB SSD and it was very fast. For last 6 months I have a problem with very slow write speed even for big files. The write speed starts at 200 MB/s but after few seconds it starts to going down to 30-35 MB/s and keeps there for rest of writing. Read is OK.
I use Macbook Pro early 2011 and tried both the newest firmware and the original 0309 with similar result. The amount of free space is there average about 30 GB. Now about 70 GB and still the same.
I also tried to let the ssd connected for few hours without booting system to activate garbage collector as I read here from some guru, it helps for few hours but then this issue came back.
Do you have any idea how to solve it? Thank you so much!
SMART data seems to look healthy in my opinion. I think I would try to check for BIOS update and also I would verify versions (and probably try to update them) of Intel Chipset Drivers and Intel Management Engine - either from Asus or from Intel site.
You can try to use Intel Driver Update Utility for that - sometimes it works