Should i need to buy case fans?

[cool.dx.rip]

I use my pc most of the time for Folding@home.My casing come with 5 case fan options.My casing almost looks like http://www.thermaltake.com/products-model.aspx?id=C_00001901 (there r 2 fan in front)
crap gamemax even dont have my casing model.It come up with 5 fans(even case fans are not also available their website).I doubt that my optional fans r contributing anyway to cool down my pc.i can merely fans air in and out pressure by placing hand very closely.Should i need to buy case fan?if yes then pls suggest in between this options.
My budget 40$
CM jetflow 12$
CM SickleFlow 8.5$
CM Xtraflow 10$
Thermaltake Smart Case Fan II 12$ (may be out of stock)
Corsair sp or af 120 at 20$
I m giving my sys screenshot right down

SOrry i m handicapped by me country importer's

 

[cool.dx.rip]

Dont know why other fans speed are not showing in this software.Any idea?
By the my system is
i5 4590
r9 270x
Gigabyte h81m s2pv
Corsair cx600

 

[aigomorla]

i have no idea what tmpin1 is pointing to.

what value does it report when your PC is on idle?
Does it change at all?

 

[BonzaiDuck]

i have no idea what tmpin1 is pointing to.

what value does it report when your PC is on idle?
Does it change at all?

Should he try the latest version of HWMonitor? Is he running more than one monitoring program while stress testing? Is there a problem with the motherboard fan controller?

The high TEMPIN1 temperature could be result of incomplete communication with the sensor by outdated software. It could also be the result of conflict due to two monitoring software programs simultaneously polling the sensor. And then maybe just a hardware problem.

That's my take on it, anyway.