Results 1 to 11 of 11

Thread: Airflow

  1. #1
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Posts
    15,547

    Airflow

    I seem to have an airflow problem - my CPU reaches 45C on a good day, and can get to 48C. The layout is as follows. Where should I put the fan? There are 4 places I am considering, but which would be more effective? (red, green, blue, yellow).
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

  2. #2
    Member
    Join Date
    Jan 2002
    Location
    Groton, CT
    Posts
    2,181
    put an intake at yellow, and an outtake fan at blue

  3. #3
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Posts
    15,547
    Originally posted by Iron Hawk
    put an intake at yellow, and an outtake fan at blue
    I only have one working fan - the other one doesn't work properly and sounds like a dying cat.
    I had an exhaust at blue, but the case temp hit 30C (only 26C now) and the CPU was at 48C.
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

  4. #4
    Member
    Join Date
    Jan 2002
    Location
    Groton, CT
    Posts
    2,181
    well, for now i would move it around and look at your temps to see what works best, also i would place an order for a few fans.

  5. #5
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Posts
    15,547
    Originally posted by Iron Hawk
    well, for now i would move it around and look at your temps to see what works best, also i would place an order for a few fans.
    I only have a 300W PSU but I'll get a couple more fans tommorrow. Thanks .
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

  6. #6
    Registered maxwell1295's Avatar
    Join Date
    Jan 2002
    Location
    New York, NY
    Posts
    36
    300W is more than enough power to run 4-5 cooling fans. The PSU fan and the one below it should be blowing out. The bottom right fan should be an intake....the bigger, the better. You can add a blowhole on the bottom left (92mm or 120mm) and maybe a 92mm or 120mm exhaust fan up top. That seems to be the most popular setup these days.

  7. #7
    Registered
    Join Date
    Nov 2001
    Location
    Silicon Valley California
    Posts
    57
    I'd mount a cooling fan right over the CPU and have some exhaust ports at the front of the case or the rear at the bottom. If you use exhaust fans, make sure they're slightly less powerful than your intake fans.

    rossd.

  8. #8
    Member Ugmore Baggage's Avatar
    Join Date
    Feb 2002
    Posts
    1,350
    It matters where your PC is too. If the back of it is crammed into a tight space, a fan there will do a big fat nothing. The PS fan is pulling air past the CPU, but remember if air has no place to go a fan will stil spin, but it won't transfer much heat. Air is a wuss under pressure.

    One of the most common ways to be sure cool air gets into the case is an intake through the front, lower vent but you still need an exhaust path!

  9. #9
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Posts
    15,547
    Thanks for all the help. I'll get 2 more fans today and stick an exhaust at the back and an intake bottom front.
    I'll also move the back away from the wall a bit
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

  10. #10
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Posts
    15,547
    Stuck another two fans in there: no difference. I think i'l just give up and get a better CPU cooler.
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

  11. #11
    Forums Super Moderator
    Overclockers.com Lead Editor


    David's Avatar
    Join Date
    Feb 2001
    Location
    Hiding from Americans and making pretty colours in a drybox in St Andrews
    Posts
    15,547
    Success!

    I have 'dangled' two fans over the CPU area. Quiet and reduces CPU temps by 4-5C and case temps 3C over a case with the side off.
    David J. Nelson MChem(Edin) PhD(Strath) MRSC [ResearcherID: D-3927-2011]
    OC Forums Super Moderator // Overclockers.com Editor


    The Workhorse: [Lenovo W510] Intel Core i7-720QM / 8 GB DDR3 / nVidia Quadro FX880M / Crucial M4 256 GB SSD / Windows 7
    The HTPC/Server: AMD Phenom X4 9650 / 6 GB DDR2 / nVidia 8300 / 5 TB of HDDs / Antec Solo II Case / Windows 7
    The Gaming Rig: AMD Llano A6-3650 / 4 GB DDR3 / nVidia GTX260 / 2x 500 GB HDD in RAID0 / Antec Dark Fleet DF-85 Case / Windows 7
    The Benchmarking Setup: Various LGA775 chips / Asus Rampage Formula / 2 GB OCZ 1066 MHz DDR2 / nVidia Quadro NVS 285 / 320 GB HDD / Windows 7

    My research fellowship is eating all my time, so I may be slow to reply to emails and private messages.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •