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Thread: Fan at max speed (ga-ep43-ud3l)




  1. #1
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    Unhappy Fan at max speed (ga-ep43-ud3l)

    Hi, I recently bought a pc desktop. it's case has a "silent cool system" (2 fans 120mm and a 3rd 80mm). BUUUT Both 120mm fans run at max speed (even if CPU fan is not working)...

    How can I reduce their speed? My pc has a GA-EP43-UD3L.. I've read BIOS SETUP manual, and I think I need to verify the "CPU EIST FUNCTION", "CPU SMART FAN CONTROL" and "CPU SMART FAN MODE"..

    But anyway, I still have doubts.. Is it possible to manipulate their speed via software?

  2. #2
    profJim's Avatar
    profJim is online now Chief Munchkin + moderator
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    Default Re: Fan at max speed (ga-ep43-ud3l)

    Speedfan software allows you to set fan speeds and also monitors your temps and voltages. If your bios settings are properly set it should lower some fan speeds.
    Q9650 @ 4.10GHz [9x456MHz]
    P35-DS4 [rev: 2.0] ~ Bios: F14
    4x2GB OCZ Reaper PC2-8500 1094MHz @5-5-5-15
    MSI N460GTX Hawk Talon Attack (1GB) video card <---- SLI ---->
    Seasonic SS-660XP2 80 Plus Platinum psu (660w)
    WD Caviar Black WD6401AALS 640GB (data)
    Samsung 840 Pro 256GB SSD (boot)
    SLI @ 16/4 works when running HyperSLI
    Cooler Master 120XL Seidon push/pull AIO cpu water cooling
    Cooler Master HAF XB computer case (RC-902XB-KKN1)
    Asus VH242H 24" monitor [1920x1080]
    MSI N460GTX Hawk (1GB) video card
    Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium
    HT|Omega Claro plus+ sound card
    CyberPower CP1500PFCLCD UPS
    E6300 (R0) @ 3.504GHz [8x438MHz] ~~ P35-DS3L [rev: 1.0] ~ Bios: F9 ~~ 4x2GB Kingston HyperX T1 PC2-8500, 876MHz @4-4-4-10
    Seasonic X650 80+ gold psu (650w) ~~ Xigmatek Balder HDT 1283 cpu cooler ~~ Cooler Master CM 690 case (RC-690-KKN1-GP)
    Samsung 830 128GB SSD MZ-7PC128B/WW (boot) ~~ WD Caviar Black WD6401AALS 640GB (data) ~~ ZM-MFC2 fan controller
    HT|Omega Striker 7.1 sound card ~~ Asus VH242H monitor [1920x1080] ~~ Logitech Z-5500 Digital 5.1 Speakers
    win7 x64 sp1 Home Premium ~~ CyberPower CP1500PFCLCD U.P.S
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  3. #3
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    Default Re: Fan at max speed (ga-ep43-ud3l)

    Are the case fans connected directly to your MB? If so As above will apply
    Lian Li PC-7F Chassis Black
    Gigabyte GA-X48-DS5 MB (Rev. 1.1 BIOS v.F8c)
    Gigabyte ODIN GT 800Watt PSU
    Intel Core2Quad Q9550 E0 @ 3.4Ghz @ 1.25vcore
    Noctua NH-U12P + AS5
    G.Skill 2X2GB F2-8500CL5D-4GBPK
    2 X ATI Radeon HD4850 512MB (Crossfired)
    Dell Ultrasharp 2209WA IPS
    2 X 1TB Seagate 7200.11 in RAID 1
    Pioneer DVR216 SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------
    Gigabyte Poseidon Chassis
    Gigabyte GA-EP45-DS3 (Rev. 1.0 BIOS v.F9)
    ASUS Artic Square CPU Cooling with AS5
    Thermaltake TR2 RX 550Watt PSU
    Intel Core2Duo E8500 E0 @ 3.8Ghz @ 1.25vcore
    Corsair 2 X 2Gb XMS2 PC6400C5 DDR2
    NVIDIA GeForce 8800GT 512MB
    1 X Seagate 1TB 7200.12 + Seagate 750GB 7211.11
    Sony SATA DVD MultiDrive
    Windows 7 Ultimate X64 RC1 (Build 7232)
    ------------------------------------------------

  4. #4
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    Default Re: Fan at max speed (ga-ep43-ud3l)

    I believe the only fan that CPU smart fan control slows down is, as per the name, the CPU fan.

    There may be other headers on your board that you can use a software fan control program on to reduce their speed. There also may be fan headers on your board that supply less than the standard 12V. Check your manual to see which headers supply a lower voltage, and you could connect them there.

    5V isn't alot for a fan though, and they will always be spinning slowly.

    You can buy in-line resistors that plug into your fan and a 12V supply to reduce voltage to 9V, 7V and 5V if you wish. There are also fan controlers available both with digital displays and analog dials. Fan controlers give better flexability, as you can dial fans up and down depending in what you're doing.

    Another option is to get some fans that can maintain a good air flow at low noise levels. Ones I have used and rate as quiet but with good flow are Enermax Batwing, Akasa Amber (not as good airflow but quiet) and Noctua NF-S12B 1200RPM. The noctua fans produce about 17dB and shift an impressive 50CF/M of air.

    **EDIT** The only headers that I can control on my board with speed fan are the CPU and I believe the only other 4 pin header (I think SYS_FAN_2), and I don't use the second four pin headder as it only supplies a max of 5V, which is pretty useless.
    Coolermaster CM 690 II advance Case
    Corsair HX750 (CWT, 91%(80+ Gold rated @230V) single 62A 12V rail
    P55A-UD4 v2.0 @ F14
    Core i5 760 @ 20 x 201, 4.02GHz
    TRUE Black with a single Noctua NF-P12 pumping out 55 CFM @ 19db .
    2 x 2GB Mushkin Ridgeback (996902), @ 7-10-8-27, 2010-DDR, 1.66v
    2 x Gigabyte GTX 460 1024MB in SLI (Pre OC'd to 715MHz core and 1800MHz VRAM) @ 850 Core / 4100 Mem.
    Intel X25-M Boot Drive (OS and Programs) 200MB/s Read & 90MB/s Write
    Corsair X32 200MB/s Read & 100MB/s Write
    WD Caviar Blue 640GB C (Steam, Games, Storage, Temp Files & Folders, etc)
    Samsung F3 500GB Backup/Images
    Noctua 1300RPM 19dB case fan (rear extraction)
    3 x 140 MM Coolermaster LED fans (one front intake, one top extraction, one side intake)
    Dell Ultra Sharp 2209WAf E-IPS @ 1680x1050

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