Computer running slow

[2day]

Few days ago my computer started to run very slow. E.g. Opening a program, even it takes time for the start menu to open from when I click on it if it allowed me. It takes few minutes to respond or even 10 to 15 minutes sometimes

Tried updating windows 7. Reformatted computer 2 weeks ago.
Tried searching this forum or google no results.

Specs
CPU: Core i7 950
motherboard: Gigabyte X58A-UD3R rev. 2
PSU: Corsair Hx-850
GPU: nivdia 570 – gigabyte n570so-13I
Optical drive: Lite-On IHAS324
OS: windows 7 Ultimate 64 Bit
RAM: Corsair CMT6GX3M3A2000C8 6GB (3x2GB) Dominator GT
HD: 2 * Spinpoint F3 HD103SJ

I heard it maybe ram problems but I have no idea how to check and I do not know on what voltage and or frequency should I set my ram in Bios

Thanks for the help

 

[Outlander_04]

the two hard drives... is that a RAID array?

and how up to date is your AV ?

open Task Manager by pressing Ctrl+Shift+Esc.
is there a particular program hogging all your memory?
close it an see if that makes a difference

Use msconfig
http://www.youtube.com/watch?v=Wm3TUTmXZcQ

 

[2day]

the two hard drives... is that a RAID array?

No

and how up to date is your AV ?

Yes my antivirus is up to date

open Task Manager by pressing Ctrl+Shift+Esc.
is there a particular program hogging all your memory?
close it an see if that makes a difference

Firefoxe is using my largest amount of memory around 600,000 to 720,000K
closed it no difference

Use msconfig
http://www.youtube.com/watch?v=Wm3TUTmXZcQ

i did this as well, i have a program running called "jmb36x" have no idea what it is

 

[Outlander_04]

jmb36x is a jmicron RAID controller .
According to google
you could try killing the process in task manager and see what happens , but dont stop it starting till you try that

720K is MASSIVE for firefox , unless you have 30 - 40 tabs open it shouldnt be anywhere near that high .
I'd uninstall firefox and reinstall a fresh download

 

[2day]

jmb36x is a jmicron RAID controller .

720K is MASSIVE for firefox , unless you have 30 - 40 tabs open it shouldnt be anywhere near that high .
I'd uninstall firefox and reinstall a fresh download

no i only have 5 to 6 tabs opened at most. ok i am going to backup bookmarks and uninstall it then download a new version and install it.

 

[harveytoot]

You might want to try diskeeper. Has a very good defragmenter and helps performance of SSD's