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Thread: Scythe Infinity stock 46.5cfm vs TT 81cfm vs Delta 190cfm results

  1. 10-16-2006, 01:14 AM #1
    eva2000
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    Cool Scythe Infinity stock 46.5cfm vs TT 81cfm vs Delta 190cfm results

    I decided to use my power hungry 955XE cpu rated at 130 watts for testing some power supplies I have been sent. But since, i'm planning to take apart my water cooling setup for a clean etc, I will go back to air cooling for cpu for the time being.

    I'm going to use a Scythe Infinity heatsink which arrived today. I'll play with 3 fan configurations

    1. Stock 120x25mm 46.5cfm 0.13amp fan
    2. Thermaltake 120x25mm 81cfm 0.40amp fan http://www.thermaltake.com/product/D...2003/a2003.asp
    3. Delta 120x38mm 190cfm 3.0amp fan - http://www.xtremesystems.org/forums/...77#post1779677

    Notes:
    I noticed in most pics and reviews the fan is positioned dead center of the fins with part of the fan blowing up the top of heatsink as in pic at http://www.scythe-usa.com/product/cp...1000-main.html

    I have the fan so it's situated with part of fan blowing at bottom of heatsink so it cools mosfets too http://i4memory.com/reviewimages/coo...rmaltake81cfm/





    System:
    • Pentium D 3.46Ghz 955XE Extreme Edition (130W)
    • Scythe Infinity with stock 46cfm fan (change to 120x38mm Delta 190cfm 3AMP fan later)
    • Intel D975XBX Bad Axe rev304 1334 bios
    • 128MB Gainward FX5200 PCI card (initial tests - change to higher end cards later)
    • 3x 320GB Seagate 7200.10 SATAII hdds
    • Pioneer DVD-RW Burner
    • 1.44MB FDD
    • 850W special psu

    Just doing initial temp tests since the Scythe Infinity only arrived today and first time using this heatsink.



    955XE @13x266fsb = 3460Mhz stock speeds at 1.275v bios vcore (1.23v bios)

    Scythe Infinity with stock 120x25mm 46.5cfm 0.13AMP fan

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 55-57C => 45-47C
    System Zone 1 idle = 34C => 35C
    System Zone 2 idle = 31C => 32C

    Intel Desktop Utilities value (windows)
    CPU load = 63-64C
    System Zone 1 load = 41C
    System Zone 2 load = 34C

    Room temp = 27.8C

    Idle


    Load (click image for larger image)


    Scythe Infinity with 120x25mm Thermaltake 81cfm 0.40AMP fan

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 53-54C => 42C
    System Zone 1 idle = 33C => 33C
    System Zone 2 idle = 31C => 31C

    Intel Desktop Utilities value (windows)
    CPU load = 57-58C
    System Zone 1 load = 36-37C
    System Zone 2 load = 32-33C

    Room temp = 26.8C

    Idle


    Load (click image for larger image)


    For those Core 2 Duo folks wondering, a 955XE @ stock 3460Mhz at 1.275v rated at 130 watts theorectically has more heat output (in terms of wattage) than a Core 2 Duo E6600 @3809Mhz at 1.511v!
    Last edited by eva2000; 10-16-2006 at 11:30 PM.
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  2. 10-16-2006, 01:34 AM #2
    sierra_bound
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    Very thorough testing, as always.:thumbsup:

    So the Infinity and TT are about equal when the same fan is used. Is your 12v rail really at 12.8v?
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  3. 10-16-2006, 02:02 AM #3
    eva2000
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    I'm gonna do DMM measurements on psu a bit later to find out

    But i did try TT Big Typhoon with 190cfm delta but was 20-25C hotter at idle and load with 955XE.. i.e. 88C load temps... but I think got bad mount heh.
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  4. 10-16-2006, 02:07 AM #4
    sierra_bound
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    I have several 152 CFM Delta's. I love them. When you need to push a lot of air, nothing beats the Delta's.
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  5. 10-16-2006, 05:43 AM #5
    bofors
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    I know that the Bad Axe's CPU fan header is rated for 3.0A. Is it safe to use it with something like a 2.0A Delta fan (assuming the fan draws under 3.0A when it starts)?
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  6. 10-16-2006, 05:56 AM #6
    eva2000
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    Delta 190cfm fan is 4pin molex powered with 3pin rpm monitoring cable so no power draw from mb direct

    955XE @15x266fsb = 4000Mhz stock speeds at 1.475v bios vcore (1.418v bios)

    Scythe Infinity with 120x25mm Thermaltake 81cfm 0.40AMP fan

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 71C => 49C
    System Zone 1 idle = 38C => 33C
    System Zone 2 idle = 32C => 31C

    Intel Desktop Utilities value (windows)
    CPU load = 77-79C
    System Zone 1 load = 41-42C
    System Zone 2 load = 32-34C

    Room temp = 25.6C

    Idle


    Load (click image for larger image)


    955XE @4000Mhz at 1.418v = ~200 watts

    vs

    E6700 @4605Mhz at 1.66v = ~197 watts





    955XE @16x266fsb = 4266Mhz stock speeds at 1.5v bios vcore (1.441v bios)

    Scythe Infinity with 120x25mm Thermaltake 81cfm 0.40AMP fan

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 74C => 51C
    System Zone 1 idle = 39C => 34C
    System Zone 2 idle = 31C => 31C

    Intel Desktop Utilities value (windows)
    CPU load = 79-80C
    System Zone 1 load = 41-42C
    System Zone 2 load = 32-33C

    Room temp = 25.4C

    Idle


    Load (click image for larger image)


    955XE @4266Mhz at 1.441v = ~220 watts
    Last edited by eva2000; 10-16-2006 at 07:32 AM.
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  7. 10-16-2006, 06:17 AM #7
    gundamit
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    MUCHO just posted a link in the Deal section for this cooler for $40US. Has anyone tried a push/pull arrangement with 2 120mm fans?
    Sourcing parts for a mildly over clocked abacus.
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  8. 10-16-2006, 08:47 AM #8
    Vapor
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    Ooooo, very nice George. How will you be mounting the Delta? I haven't figured out a good way to mount a 38mm thick fan on it yet

    Also, what other HSFs do you have planned?
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  9. 10-16-2006, 09:16 AM #9
    eva2000
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    not much into air these days.. once i clean up and rebuild my water cooling loops.. it's back to H20 for Aussie summer time = bloody hot

    Gonna use zip ties most likely for 38mm thick fans
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  10. 10-16-2006, 09:14 PM #10
    eva2000
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    Time to test 120x38mm Delta 190cfm 3.0amp fan. Mounting done by trusty zip ties as pictured here.



    Scythe Infinity with 120x38mm Delta 190cfm 3.0amp fan


    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 50-52C => 41C
    System Zone 1 idle = 33-35C => 34C
    System Zone 2 idle = 29-31C => 31C

    Intel Desktop Utilities value (windows)
    CPU load = 55-56C
    System Zone 1 load = 37-38C
    System Zone 2 load = 32-33C

    Room temp = 26.8C

    Idle


    Load (click image for larger image)


    955XE @ stock 3466Mhz at 1.275v quad stressprime load compare between

    Scythe stock 120x25mm 46.5cfm fan
    vs
    Thermaltake 120x25mm 81cfm fan
    vs
    Delta 120x38mm 190cfm fan



    I believe the system temps are higher on Delta due to the fan being more focused air flow being in the centre versus the TT 81cfm fan having a more even air flow which would help the mosfets under the Scythe Infinity heatsink.
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  11. 10-16-2006, 09:28 PM #11
    Navig
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    Great work eva2000! Thanks for all the info.

    You wouldn't happen to have a panflo L1 or M1, or a Sanyo Denki to add to the testing list? It'd be interesting to see how a fan with similar cfm and noise characteristics (to a 25mm thick fan), but a much higher pressure curve, would do.


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  12. 10-16-2006, 09:32 PM #12
    eva2000
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    only have this Panaflo fan FBA12G12H 120x38mm 103.8CFM at 41.5dBA http://www.pccasegear.com.au/prod788.htm
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  13. 10-16-2006, 10:18 PM #13
    OpTiX
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    Quote Originally Posted by eva2000
    only have this Panaflo fan FBA12G12H 120x38mm 103.8CFM at 41.5dBA http://www.pccasegear.com.au/prod788.htm
    i have the same one mounted to my infinity right now.
    CPU: 2x Intel Xeon E5530 @ 3.6Ghz
    GPU: 2x 580GTX
    RAM: G.SKILL Ripjaws X Series 16GB
    MB: Evga SR-2
    HDD: OCZ Agility 3 120GB
    PSU: COOLER MASTER Silent Pro 1200W
    Monitor: 4x Samsung Sync Master 245BW
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  14. 10-16-2006, 11:19 PM #14
    eva2000
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    ================================================== ============
    955XE @16x266fsb = 4266Mhz at 1.5v bios vcore (1.441v bios)

    Scythe Infinity with 120x38mm Delta 190cfm 3.0amp fan

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 72C => 51C
    System Zone 1 idle = 39C => 36C
    System Zone 2 idle = 33C => 33C

    Intel Desktop Utilities value (windows)
    CPU load = 78-79C
    System Zone 1 load = 45-46C
    System Zone 2 load = 35-36C

    Room temp = 26.8C

    Idle


    Load (click image for larger image)


    955XE @16x266fsb = 4266Mhz at 1.5v bios vcore (1.441v bios)


    Thermaltake 120x25mm 81cfm fan
    vs
    Delta 120x38mm 190cfm fan

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  15. 10-17-2006, 04:44 AM #15
    jjwa
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    Thanks for the testing!
    So can we say it really helps for the Infinity to replace the fan with something with a higher cfm, for example ~80cfm instead of the stock, but much higher, like 190cfm for example, won't help much extra?
    So putting a bit heavier fan on it will help, but it's pretty much useless to put one of them leafblower noise-makers on it :P.
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  16. 10-17-2006, 05:27 AM #16
    eva2000
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    All depends on air pressure too 81cfm TT 120x25mm fan has 4.7mmH20 air pressure and that's more than my Panaflo 120x38mm 103cfm fans!

    Now how do 2x 120x25mm Thermaltake 81cfm fans in push-pull config do ?



    Scythe Infinity with 2x 120x25mm Thermaltake 81cfm 0.40AMP fans push-pull config

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 51-52C => 40-41C
    System Zone 1 idle = 33C => 34C
    System Zone 2 idle = 30-31C => 31C

    Intel Desktop Utilities value (windows)
    CPU load = 55-57C
    System Zone 1 load = 37-39C
    System Zone 2 load = 32-34C

    Room temp = 26.1C

    Idle


    Load (click image for larger image)


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  17. 10-17-2006, 05:49 AM #17
    eva2000
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    Amazing feat for a 3.46Ghz 955XE Extreme Edition cpu to be quad stressprime 1+hr stable @4399Mhz at 1.476v vcore (bios) - maybe this special psu also had something to do with it ?





    Scythe Infinity with 2x 120x25mm Thermaltake 81cfm 0.40AMP fans push-pull config

    Bios value => Intel Desktop Utilities value (windows)
    CPU idle = 79-80C => 55-56C
    System Zone 1 idle = 38C => 35C
    System Zone 2 idle = 31C => 31C

    Intel Desktop Utilities value (windows)
    CPU load = 79-81C
    System Zone 1 load = 38-40C
    System Zone 2 load = 31C

    Room temp = 26.8C

    Idle


    Load (click image for larger image)
    Last edited by eva2000; 10-17-2006 at 05:53 AM.
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