Page 1 of 2 1 2 LastLast
Results 1 to 20 of 29
  1. #1
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392

    Anyone installed on Fan on the underside of your case.

    Well with my new wheels on my case it is almost 3 inches off of the floor now. A compu tech friend was over today helping me with some security stuff and he noted that I could actully put Under Case intake holes on my machine now. They could go right under the hard drives blowing onto them. I had never thought to do that. I am going to buy some tile or hard plastic for the wheels to roll on and to keep it off of the carpet.


    So has anyone else ever put a fan or more than one fan, UNDER there case with an intake sucking air in. This should be a great source of shaded cool air.
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  2. #2
    Official O/C Santa Ferret Wangster's Avatar
    Join Date
    Apr 2002
    Location
    Austin
    Posts
    889
    Try it and let us know what your temp differences are!

    I've often wondered about adding more intake fans from the bottom since the window looks better without fans attached to them.

  3. #3
    Member
    Join Date
    Jan 2003
    Location
    Beyond The Veil Of Immagination
    Posts
    140
    I'm thinking og this right now, since i have no pci cards at all what i',m thinking of doing is putting a 120mm intake on the underside and then ducting the air from that intake directly to the gpu. I'm building a box out of plexi to set the entire case ontop off. I will have 2 120mm fans sucking in air and through filters in the plexi box giving me nice clean cool air for the intake on the case bottom

  4. #4
    Member Robin Hood's Avatar
    Join Date
    Aug 2002
    Location
    Nottingham
    Posts
    466
    I have two 80's in the base blowing up and it helps the case temps no end - though this partly due to the fact that the mobo thermister is right in their path. I have less ground clearance and no filters, which is not ideal - though my HSF is ducted elsewhere.

  5. #5
    Computational Oncologist / Biomathematician / Moderator on Vacation, Ph.D.
    macklin01's Avatar
    Join Date
    Apr 2002
    Location
    Pasadena, CA
    Posts
    5,643
    I think it's a super idea! A bottom intake will have much less obstruction than a front panel intake in most cases. -- Paul
    My heatware (macklin01)

    Need image I/O for your science apps? Try EasyBMP

    My biomedical research: Mathematical Cancer Modeling & Simulation

    I'm on vacation as a moderator as I devote more time to my faculty position.
    Thank you for your understanding if I don't respond to your PM. -- Paul

  6. #6
    Senior Member OSUmaxx's Avatar
    Join Date
    Jul 2002
    Location
    Oregon
    Posts
    2,379
    I would definitely use good filters so you don't suck up lots of dust off of the floor. A switch to turn them off might be a good feature to add if you plan on taking your case places where there might be deep carpet, etc.

  7. #7
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392
    Ok now the question is where should I put it. Would there be more benefit if it was right under the hard drives. (I have 3) or should I put it between the hard drives and the PCI cards so it blows up onto video card. If it is under the hard drives no one will see it, if I put it in between the HD and PCI cards it will be out in the open.

    Hmm decisions decisions decisions.

    I have the drill, the hole-saw and all my tools sitting here.
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  8. #8
    Computational Oncologist / Biomathematician / Moderator on Vacation, Ph.D.
    macklin01's Avatar
    Join Date
    Apr 2002
    Location
    Pasadena, CA
    Posts
    5,643
    Hmmm. I think that no matter where you put it, it's generally going to effect a bottom-to-top/back airflow pattern, which is desirable. Because airflow tends to diffuse with distance, I would think that even if the fan isn't directly under the hdd, it will still get some of that additional airflow, and since hard drives are relatively cool (compared to CPU, vid card, etc.), it will probably be enough.

    Perhaps towards the center, slightly towards the front?

    What size / CFM air you planning upon? -- Paul
    My heatware (macklin01)

    Need image I/O for your science apps? Try EasyBMP

    My biomedical research: Mathematical Cancer Modeling & Simulation

    I'm on vacation as a moderator as I devote more time to my faculty position.
    Thank you for your understanding if I don't respond to your PM. -- Paul

  9. #9
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392
    I have lost the spec card for the fans I use, but I belive the specs were

    80mm Fan (I know that for sure)

    2500rpm
    30cfm
    Tri Colour LED Fan

    I am really trying to work more towards component cooling right now. As my case temps almost never go above room temp and my CPU right now is 27C. I wish I had a way to moniter just the vid card temps.

    Well that is the specs on the fan and I think I am leaning towards your recomendation of middle of the case, but slightly towards the front.
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  10. #10
    Computational Oncologist / Biomathematician / Moderator on Vacation, Ph.D.
    macklin01's Avatar
    Join Date
    Apr 2002
    Location
    Pasadena, CA
    Posts
    5,643
    Wow, you already have excellent case temps. That is quite impressive. What is your room temp?

    You might consider using a larger fan -- higher CFM's for lower airflow.

    You might also consider trying to duct from the size of the case directly to your vid card, if you're concerned about that.

    As for vid card temps, you can actually create a temp probe that MBM can read and connect it via your gameport. See http://thermogamer.vortex.idz.net/ for details.

    -- Paul
    My heatware (macklin01)

    Need image I/O for your science apps? Try EasyBMP

    My biomedical research: Mathematical Cancer Modeling & Simulation

    I'm on vacation as a moderator as I devote more time to my faculty position.
    Thank you for your understanding if I don't respond to your PM. -- Paul

  11. #11
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392
    That is a pretty cool little setup using your game port to moniter card temps. I guess everybody just uses USB gamming devices now a day's.

    As for my room temps. It is usually around 19C give or take a bit over the cource of the day. In the early morning I will find the MB to be at 18C and the CPU at 22C but as the day goes on the MB will climb to 23C and the cpu to 27-28C my case temps are helped alot by 2 things. 1st I have a total of 10 fans in my machine. 2nd it is sitting right next to a large glass slidding door. The glass door gets rather cool and all the intake fans love the cool air near the door.


    I have noted that my HD's and my Video card are very warm to the touch when I have been working on the system "Live"

    When I get this mod done I will post pics. I might just install 2 fans. Not sure yet. I am taking my time with this one.
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  12. #12
    Member james.miller's Avatar
    Join Date
    Jun 2002
    Location
    Dunstable, uk
    Posts
    5,139
    ive got an 80mm fan at the bottom-front of my case. cools the drive surprisingly well and the system as a whole
    The HTPC

    E2160 @ 2.7ghz | Thermaltake The Orb cooler | Asus p5w-dh | 4Gb DDR-II pc6400| 1.00Tb of WD AAKS storage | Asus Xonar D2| 360 HD-DVD drive
    Pioneer bd204 bluray sata drive | Corsair HX620w PSU | BFG GeForce 8800GTX | Silverstone SST-LC17b
    | 22" dell e228wfp | 40" 1080p SONY 40w2000

    ONKYO TX-SR805 | bi-amped mission m71i fronts | eltax center & bipolar rears
    2x 12" custom built subwoofers powered by a denon pma-100m | PS3 with linux and a 250gb 3.5" internal drive | Nintendo wii



  13. #13
    Computational Oncologist / Biomathematician / Moderator on Vacation, Ph.D.
    macklin01's Avatar
    Join Date
    Apr 2002
    Location
    Pasadena, CA
    Posts
    5,643
    Good call -- always take your time when decidign where to cut the case. Good luck, and have fun! -- Paul

    PS: I take it noise is not an issue for you?
    My heatware (macklin01)

    Need image I/O for your science apps? Try EasyBMP

    My biomedical research: Mathematical Cancer Modeling & Simulation

    I'm on vacation as a moderator as I devote more time to my faculty position.
    Thank you for your understanding if I don't respond to your PM. -- Paul

  14. #14
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392
    Originally posted by macklin01
    Good call -- always take your time when decidign where to cut the case. Good luck, and have fun! -- Paul

    PS: I take it noise is not an issue for you?


    LOL, noise what noise I can't hear a thing over this darned computer.


    Seriously though, it is suprisnly quite. All the fans are running 3000rpm or below. The 2 fans in the PSU are temp controlled and rarley ever go over 1600rpms. Unless I have everything in my room turned off I never really even notice the fan noise.

    There is only one machine in my room than can make enough noise that you can hear it really loudly. That is the 120mm fan in one of my other machines. It is running on 13v external power. I had to put a switch on it to shut it off when not needed. Sounds like an air raid siren.

    If you are interested, here are the pics of my fans

    http://www.david.westcoastfieros.com/fanpics

    Please let me know if the link does not work, we just did some serious upgrades to the server software.
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  15. #15
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392

    I Did It!! Here are the results

    Well I went ahead and did it, case temps dont seem to be too changed but the CPU seems to be running a bit cooler. I tried UT2003 and the normal max was 38-40c this time it maxed out at 35C. It will take me a few days of playing with machine to really see if it made a "hole" lot of diffrence. HeHe, well here are the small pics, there are more at the link below. I added a grill to the inside of case so that wires and stuff wont drop down and get caught in there, let alone my fingers.


    I shrunk these down to 50k each.









    Other Pics can be seen at

    http://www.david.westcoastfieros.com/bottomhole
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  16. #16
    Member
    Join Date
    Jun 2002
    Location
    Prophetstown IL
    Posts
    2,394
    please tell me you didn't drill that hole with everything still in the case.......

  17. #17
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392

    HeHeHe, YUP!!!!!!!!!

    BUT

    I did remove and hold back all wiring and cables that had any chance of getting caught up. Plus I had small hand towls inside the case to cover and or catch anything debree that might have had a chance to fall out. PLUS

    The way this hole saw cuts, and this is the only reason I would ever try doing it with the machine still together is, the way the teeth cut they draw all the filings into the saw, when I removed the towls from the indside, there was almost ZERO on them. However the large towl on the outside was coverd in stuff.

    Oh

    I know that i said I was using a tri colour fan, but it turns out I am out of them at the moment, I just ordered 3 more of them plus 4 more grills. They will be here in a few days. I am slowly converting all the fans in my machine to the Tri Colour fans. Brings new meaning to "Light Up My World"
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

  18. #18
    Member NiTrO bOiE's Avatar
    Join Date
    Dec 2002
    Location
    Charlotte, NC
    Posts
    2,568
    That will suck up all the dust thats on your floor...
    CPU: AMD 64 3000+ DTR @ 2750
    MB:
    DFI Lanparty UT 250GB

    Memory: 2x 1GB G.Skill PC3200

    Video:
    Radeon X800XT-PE w/ Maze 4 GPU

    Hard Drives:
    36GB Raptor (Main) 160GB Hitachi (Storage)

    Optical Storage:
    44x CD, 8x DVD-RW

    Sound:
    Audigy 2 ZS
    Case & Power: Black Chieftec FT w/ Window, Antec TP 430
    Watercooled WW, Pro Core (2) 120mm Deltas, Hydor L20
    Windows XP Professional x64 Edition

  19. #19
    Computational Oncologist / Biomathematician / Moderator on Vacation, Ph.D.
    macklin01's Avatar
    Join Date
    Apr 2002
    Location
    Pasadena, CA
    Posts
    5,643
    nice placement! (and nice hole-cutting drill! It took me forever to cut mine with a dremel ... LOL

    I understand your temps -- you have probably the same ambient temps inside, but bring a little bit more fresh air towards the CPU HSF. Also, I believe you're taking more airflow directly over it, thereby better removing the exhaust air from the HSF.

    Nice work! -- Paul

    *edit* Makes me wonder how a blowhole topside would work for you -- instead of the traditional front-to-back airflow, you get bottom-to-top airflow. Interesting! -- Paul

    *edit* a good point. As has been mentioned before, you'll want to make sure you get a very good filter on that. -- Paul
    My heatware (macklin01)

    Need image I/O for your science apps? Try EasyBMP

    My biomedical research: Mathematical Cancer Modeling & Simulation

    I'm on vacation as a moderator as I devote more time to my faculty position.
    Thank you for your understanding if I don't respond to your PM. -- Paul

  20. #20
    Member Capt Fiero's Avatar
    Join Date
    Dec 2002
    Location
    Surrey B.C. Canada (near Vancouver)
    Posts
    1,392
    Ok it looks like my IP has been banned again. Crap Jesh, so the pics may not load correctly.

    The links should work if you plug em into you browser.

    Someone keeps doing some sort of port scanning and they must be using my IP addy some how.


    David
    Getting real iritated at whoever is screwing with me.
    [COLOR="White"][SIZE=1]
    My System
    CPU E8400 @ 3.84ghz
    Motherboard Biostar T45HP
    Ram 4GB Corsair (4x 1GB)
    Nvidia 8800GT OC2 Video Card.
    Logitech Revolution Laser Mouse
    3.5 Terabytes of Storage
    Antec TruePower 750 Watt PSU
    XIGMATEK HDT S1283 Cooler

Page 1 of 2 1 2 LastLast

Posting Permissions

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