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Windows 7: SSD fast reads, REALLY slow writes

20 Jan 2016   #1
Yippee38

Windows 7 Home Premium 64-bit
 
 
SSD fast reads, REALLY slow writes

I upgraded my PC about six months ago. I installed a Plextor PX-128M6Pro for Win7 and Program Files. I've got spinning drives for just about everything else. My old SSD is an 80Gb Corsair (Device Manager shows it as a SandForce[290900]). I left that in the system to use when I wanted good performance on particular applications/games. So today I decided to start using it, and I've discovered that I'm getting incredibly slow writes to the drive.

When I say I'm getting slow writes, I mean creating a shortcut for a file on the drive took 55 seconds. Right-clicking in a directory to create a new directory took a minute and 10 seconds for the new directory to show up. I then named it, and when I hit the <Enter> key to save the new name, it took a minute.

I can navigate the drive without any slowdowns, and I can copy files from the drive to other drives without any problems. None of my other drives are doing this.

Any suggestions what could be causing this?

Motherboard: Gigabyte Z97X Gaming 7 (all drivers up to date)
Windows 7 Home Premium, SP1, 64-bit


My System SpecsSystem Spec
.
20 Jan 2016   #2
Yippee38

Windows 7 Home Premium 64-bit
 
 

So not every write is slow. About 10% of them go fine.
My System SpecsSystem Spec
20 Jan 2016   #3
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

Is the SSD aligned.

SSD Alignment
My System SpecsSystem Spec
.

21 Jan 2016   #4
Yippee38

Windows 7 Home Premium 64-bit
 
 

It is now.

After I did that, it seemed better. I created a directory and deleted it without any problems. I rebooted and the drive wasn't showing in Explorer or in Disk Management. I rebooted again, and it was there, but it was slow like before.

I'm starting to think the drive is going bad.
My System SpecsSystem Spec
21 Jan 2016   #5
ThrashZone

Win-7-Pro64bit 7-H-Prem-64bit
 
 

Hi,
Samsung 850 evo's are pretty cheap now
Newegg or Amazon 80.us for a 250gb is far out
https://www.google.com/#q=samsung+850+evo+250gb
My System SpecsSystem Spec
21 Jan 2016   #6
Yippee38

Windows 7 Home Premium 64-bit
 
 

I may have figured out the problem. I replaced the SATA cable, and so far, I haven't had any slowdowns with some preliminary tests. I will update after more testing.
My System SpecsSystem Spec
21 Jan 2016   #7
whs
Microsoft MVP

Vista, Windows7, Mint Mate, Zorin, Windows 8
 
 

That is a classic - cable problem.
My System SpecsSystem Spec
21 Jan 2016   #8
Yippee38

Windows 7 Home Premium 64-bit
 
 

Yup. It was definitely the cable. My machine is running smooth as hell now. Thanks for the help all.
My System SpecsSystem Spec
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 SSD fast reads, REALLY slow writes




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