Help with slow computer

After installing an 2nd drive in my iMac (Samsung 840 SSD) my computer has been much more sluggish. I have a quad core mid 2010 imac with 16gig of RAM, and before this is it was doing better than it is now. I moved all my sample libraries to the SSD and it works as far as fast upload times, but the computer is just running slow. Projects that used to run fine now spike the cpu and overload, and even doing simple things like typing can sometimes cause a drag. I took it into the apple store to get a hardware diagnostic done, and they say the only thing they found wrong was the LCD Temp cable was broke (which Ive ordered a new one and this does not effect speed) and that my harddrive failed an initial screen test but was most likely due to their being two drives. And I'd find it awfully coincidental that my harddrive would start failing right when I put an SSD in.

So basically I'm just trying to trouble shoot. I don't know if it's a hardware or software issue. I've run Onyx, MacKeeper, hardware diagnostics, so I'm starting to think 1 of 2 things; either I knocked something loose in the install and something is not physically right (I find this hard to believe), or the computer just doesn't like the SSD. Right now I'm in the process of redownloading my OS to install on the SSD, I'll boot from that and see if I have any issues to maybe narrow down the problem being with the HDD. OWC said that I could mail it into them and they'd look at it, but that will cost, so I'm trying to avoid that too.

If anyone has any suggestions I'd love to hear them, composing is getting a little rough.

samueloscar said:

I've run Onyx, MacKeeper, hardware diagnostics...

Click to expand...

First things first...GET RID OF MACKEEPER!!! We advise against MacKeeper all the time!

- Nick

It's not running anymore, so done.

I'm not a lover of Samsung products, however, I have no experience with their SSD drives. But just as a quip here.... I would suspect the drive since things have slowed down after you installed it. Also, I believe your 2010 iMac uses a proprietary hard drive and cable for temperature sensing. I assume you accounted for that so that your hard drive fan does not go full RPM when you turn the machine on?

It definitely has something to do with the drive. I did snap the LCD temp cable, so the CPU and Optical Drive are running at 4000 RPMs. Everyone keeps saying thats not causing the slowness, but I'm not convinced since it's the only indicator of anything changing post-install. The Harddrive is running at 1099, so it's ok.

I would go ahead and replace that cable first before deciding what to do with the Samsung SSD. If after replacing the cable, (and the fan speeds return to normal) you're still dealing with slowness, then, I would return the Samsung and get an OWC or Crucial SSD instead.

After some other advice from other threads, I've uninstalled MacKeeper completely and repermissioned. Another possible thing that I have maybe missed was my external harddrives have been indexing, so Im going to let them properly index before I give it another whirl.