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What is going on with my temps?

Discussion in 'Overclocking & Cooling' started by BringTheRain, 16 Apr 2010.

  1. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    I have an 800D Case

    I have got 3 120mm top fans. One rear 140mm fan and one above the psu area again 140mm fan

    I have got a temp sender going to the middle of the case

    When the fans are on low im at about 24c when i turn the fans up the reading goes to 30c

    I thought it would be the opposite?

    I dont understand postive, negative set ups etc

    Any advice or is this correct :)
     
  2. Guest2

    Capodecina

    Joined: 6 May 2009

    Posts: 17,054

    Have you got your fans on back to front? (all blowing air into the case)
     
  3. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Nope, just checked all sucking air out?
     
  4. Guest2

    Capodecina

    Joined: 6 May 2009

    Posts: 17,054

    There's your problem, all sucking out = no air can get in!

    - sorry, really i cant help. What sensor are you using, maybe its knackered
     
  5. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Nah new sensor :)

    So i need some blowing air into the computer ?

    I will try and read up on that then?
     
  6. eddyc

    Wise Guy

    Joined: 13 Nov 2009

    Posts: 1,105

    Yes you do need air blowing in. the convention is to have fans at the bottom / front of the case blowing cold air from the outside into the case and fans on the back / top blowing warm air out of the case (remember hot air rises naturally).

    See here.
     
  7. unp|dissy

    Wise Guy

    Joined: 22 Feb 2010

    Posts: 2,186

    Location: Chester

    Cool air in front front / bottom of case.
    Hot air out from top / back of case.

    Please dont set all your fans to exhaust :)
     
  8. Scurra

    Gangster

    Joined: 30 Jul 2009

    Posts: 238

    Location: Kent UK

    I have a related question, I'm currently using a CM 690 case with one intake on the front and an exhaust on the back and top (all 120mm) I also have the windowed side panel which leaves me with one fan to use on the side directly over my always toasty 4890 would this fan be best set as an intake (which it is currently) or an exhaust?

    I assumed that pulling cool air in over the gfx card would be the smart move and then let the cooler/blower on the card eject the hot air out of the back.

    Please let me know if i'm wrong.
     
  9. unp|dissy

    Wise Guy

    Joined: 22 Feb 2010

    Posts: 2,186

    Location: Chester

    Intake mate. Most definatly.
     
  10. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Well i dont know how i am going todo it other than the way its set up. No fans on the front you see.

    There is only one 140mm fan sucking in,this is at the bottom. The top three 120mm suck out and then one on the rear sucks out 140mm.

    The 140mm fan on the rear, should i turn it round.....So its blowing in air.....
     
  11. MouthBoy

    Mobster

    Joined: 6 Apr 2010

    Posts: 2,698

    Location: Midlands

    No fans at the front? Weird...

    When you say bottom, do you mean base of the case? Or bottom of the front?

    I wouldnt suggest pulling air in from the back and the front, because I believe that you cause airflow issues then in the middle of the case.
     
  12. chaosquall

    Gangster

    Joined: 16 Feb 2010

    Posts: 308

    Location: Southend-On-Sea, Essex

    the 800d case is lacking in intake fans, what you need is a front intake fan to bring some much needed cool air in
     
  13. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Well there's no way I put one at the front it's a solid front to the case. I think spinning the rear fan will help. So I will have one at the rear sucking in and one at the bottom of the case sucking air as it blows air up. And then 3 exhaust at the top
     
  14. freddie64

    Mobster

    Joined: 22 Mar 2008

    Posts: 3,196

    Are you getting high CPU temps? If not i would just leave it as it is.
     
  15. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Runnig an e6600 not overclocked. And it hovers at 32c on both cores. I don't game no more. And when watching a blu ray I may go to 34 maybe 35 on each core
     
  16. unp|dissy

    Wise Guy

    Joined: 22 Feb 2010

    Posts: 2,186

    Location: Chester

    Wouldnt worry too much then if your just using your machine for light usage like that.

    If it's going to annoy you you do need front intake fans
     
  17. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Getting a front intake fan on a corsair 800D is pretty much gonna be impossible.

    Ive been reading up on it, and i think i am going to reverse the rear 140mm fan.

    As most people have the bottom fan pulling in air.

    3 top fans exhausting

    1 fan at the back drawing air in.

    Then the one 140mm fan cooling HD's

    Nothing gets hot at all tho :)
     
  18. BringTheRain

    Soldato

    Joined: 3 Jan 2009

    Posts: 5,614

    Location: Bedfordshire

    Turned the rear fan round and the temps in the case dropped by 4 or 5. The cores now sit at 28 29. I have no idea if this is the right way or not. But the temps dropped :D
     
  19. unp|dissy

    Wise Guy

    Joined: 22 Feb 2010

    Posts: 2,186

    Location: Chester

    Temps are good now then :D