• We've upgraded our forums. Please post any issues/requests in this thread.

So I put a 120MM fan blowing from the bottom of my case

Joined
Mar 25, 2009
Messages
1,116 (0.35/day)
Likes
73
Location
Somewhere in the underground
System Name Built Entirely With Parts From CompUSA
Processor E7400 2.8 @ 3.6 [9.0*400/1.31v]
Motherboard Gigabyte EP45-UD3R
Cooling Masscool 8WA741
Memory 2x1GB Corsair XMS2 800 4-4-4-12
Video Card(s) BFG 9800GTX+OC; GTS250 BIOS
Storage 2x WD 250GB AAKS in RAID0!
Display(s) 19" I-Inc LCD @ 1440x900
Case Ultra X-Blaster Clear Side
Audio Device(s) Audigy with X-Fi drivers; Logitech X-540s
Power Supply Corsair TX750
Software Vista 32-Bit
#1
Blowing straight up into my video card. Virtually no change in temps. DAMNNN.
 
Joined
Jul 17, 2005
Messages
461 (0.10/day)
Likes
45
Location
Peterborough, UK
Processor Intel Pentium Dual Core E2160
Motherboard ASUS P5E3 Deluxe
Cooling Akasa EVO 120
Memory 2 x 1Gb OCZ Gold DDR3 1066Mhz 6,6,6,18
Video Card(s) GeCube ATi X1950Pro 512Mb PCIe (Accelro X2)
Storage Samsung 320Gb SATA2
Display(s) Samsung SM206BW 20" Widescreen TFT 1680x1050
Case Coolermaster Centurion 532
Audio Device(s) On board AC'97
Power Supply Hiper Type-R 580W
Software Windows Vista Home Premium
Benchmark Scores See my OC Blog @ http://www.rowan-house.net/
#2
with air from where exactly? Do you have the case on high feet and with vent holes in the floor?
 

AsRock

TPU addict
Joined
Jun 23, 2007
Messages
15,320 (4.00/day)
Likes
4,726
Location
US
Processor 2500k \ 3770k
Motherboard ASRock Z68 \ Z77
Memory Samsung low profile 1600
Video Card(s) XFX 6770 \ XFX R9 290X
Storage Intel 80Gb (SATA2) WD 250Gb \ Team SSD+Samsung Evo 250Gb+500Gb+ 2xCorsair Force+WD250GbHDD
Display(s) Samsung 1080P \ Toshiba HDTV 1080P
Case HTPC400 \ Thermaltake Armor case ( original ), With Zalman fan controller ( wattage usage ).
Audio Device(s) Yamaha RX-V475 \ Marantz SR5008 Tannoy Mercury MKII Paradigm 5SE + Tannoy Mercury F4
Power Supply PC&Power 750w \ Seasonic 750w MKII
Mouse MS intelimouse \ Logitech G700s + Steelseries Sensei wireless
Keyboard Logitech K120 \ ROCCAT MK Pro ( modded amber leds )
Benchmark Scores Meh benchmarks.
#3
Blowing straight up into my video card. Virtually no change in temps. DAMNNN.

Try the top side of the card so it cools the PCB and ram if there is any one that side of the card.

EDIT: You could all so try a 80mm fan under the v card pushing air out the back though the pci slots of the case if a 80mm will fit as that will take the heat away from he bottom of the case
 
Joined
Jul 30, 2007
Messages
6,560 (1.73/day)
Likes
835
System Name Vintage
Processor i7 - 3770K @ Stock
Cooling Scythe Zipang II
Memory 2x4GB Crucial DDR3
Video Card(s) MSI GTX970
Storage M4 124GB SSD// WD Black 640GB// WD Black 1TB//Samsung F3 1.5TB
Display(s) Samsung SM223BW 21.6"
Case Generic
Power Supply Corsair HX 520W
Software Windows 7
#4
with a video card blowing air down to meet the fan pushing air up? no wonder why

go for side fans
 
Joined
Mar 25, 2009
Messages
1,116 (0.35/day)
Likes
73
Location
Somewhere in the underground
System Name Built Entirely With Parts From CompUSA
Processor E7400 2.8 @ 3.6 [9.0*400/1.31v]
Motherboard Gigabyte EP45-UD3R
Cooling Masscool 8WA741
Memory 2x1GB Corsair XMS2 800 4-4-4-12
Video Card(s) BFG 9800GTX+OC; GTS250 BIOS
Storage 2x WD 250GB AAKS in RAID0!
Display(s) 19" I-Inc LCD @ 1440x900
Case Ultra X-Blaster Clear Side
Audio Device(s) Audigy with X-Fi drivers; Logitech X-540s
Power Supply Corsair TX750
Software Vista 32-Bit
#5
with a video card blowing air down to meet the fan pushing air up? no wonder why

go for side fans
Fan in vid card blows air into the card and out the back of it.
 
Joined
Sep 13, 2007
Messages
218 (0.06/day)
Likes
19
System Name OC GamePC
Processor Intel Core i7-2600K (4,7ghz @ 1,392v max)
Motherboard Intel Z68
Cooling ID Cooling Frostflow 120mm AIO (2x Noctua NF-F12)
Memory 26gb 1866mhz DDR3 CL9 Dual-Channel (2x8gb)
Video Card(s) EVGA GTX970 SSC @ 1430/7900
Storage 250gb Sata3 SSD, 750GB SSHD
Display(s) 32" 1366x768 Toshiba LED Backlight TV
Case Raijintek Thetis Black
Audio Device(s) Asus Xonar D1 PCI
Power Supply EVGA 550G2
Software Windows 10 Pro
Benchmark Scores Firestrike: ~ 11.100 Timespy: ~ 4.000
#6
Fan in vid card blows air into the card and out the back of it.
Then best thing you could do is mount a Fan to the outside and help the internal fan by sucking out some hot air.

I believe what actually cools those Heatsinks is not only the Air itself, but actually the movment and pressure on those cooling-fins.

By blowing air onto your Vid-Card you are not changing this; nor are you really changing the temperature the card sucks in to cool the fins with.
 
Joined
Jul 28, 2007
Messages
8,013 (2.11/day)
Likes
854
Location
Dorset, UK
System Name Gaming Rig | Uni Laptop
Processor Intel Q6600 G0 (2007) @ 3.6Ghz @ 1.45625v (LLC) / 4 GHz Bench @ 1.63v | AMD Turion 64 X2 TL-62 2 GHz
Motherboard ASUS P5Q Deluxe (Intel P45) | HP 6715b
Cooling Xigmatek Dark Knight w/AC MX2 ~ Case Fans: 2 x 180mm + 1 x 120mm Silverstone Fans
Memory 4GB OCZ Platinum PC2-8000 @ 1000Mhz 5-5-5-15 2.1v | 2 x 1GB DDR2 667 MHz
Video Card(s) XFX GTX 285 1GB, Modded FTW BIOS @ 725/1512/1350 w/Accelero Xtreme GTX 280 + Scythe sinks| ATI X1250
Storage 2x WD6400AAKS 1 TB Raid 0, 140GB Raid 1 & 80GB Maxtor Basics External HDD (storage) | 160GB 2.5"
Display(s) Samsung SyncMaster SM2433BW @ 1920 x 1200 via DVI-D | 15.4" WSXGA+ (1680 x 1050 resolution)
Case Silverstone Fortress FT01B-W ~ Logitech G15 R1 / Microsoft Laser Mouse 6000
Audio Device(s) Soundmax AD2000BX Onboard Sound, via Logitech X-230 2.1 | ADI SoundMAX HD Audio
Power Supply Corsair TX650W | HP 90W
Software Windows 7 Ultimate Build 7100 x64 | Windows 7 Ultimate Build 7100 x64
Benchmark Scores 3DM06: 19519, Vantage: P16170 ~ Win7: -CPU 7.5 -MEM 7.5 -AERO 7.9 -GFX 6.0 -HDD 6.0
#7
I assume you checked load temps?

Cus it made a 10*C difference in load temps going from a case with no bottom fan, to a case with one.
 
Joined
Feb 24, 2009
Messages
3,455 (1.07/day)
Likes
708
System Name Money Hole
Processor Core i7 970
Motherboard Asus P6T6 WS Revolution
Cooling Noctua UH-D14
Memory 2133Mhz 12GB (3x4GB) Mushkin 998991
Video Card(s) Sapphire Tri-X OC R9 290X
Storage Samsung 1TB 850 Evo
Display(s) 3x Acer KG240A 144hz
Case CM HAF 932
Audio Device(s) ADI (onboard)
Power Supply Enermax Revolution 85+ 1050w
Mouse Logitech G602
Keyboard Logitech G710+
Software Windows 10 Professional x64
#8
You got to make sure the fan has air to pull in to push up. If the fan is laying flat on the bottom with no holes in bottom of case, where is it going to get the air to push up? It has to pull it from somewhere to even move the air above it. Now, even if it has holes to pull air in through bottom of case, same principle applies. If the case isn't high enough off the floor, it won't pull as much air as it could if it was higher. Take my HAF 932 for example. I mounted a 1200 rpm CM 120mm fan on the in front of the PSU that I got out of my CM C5 case. Everything lines up perfectly to where the fan for the 4870x2 is almost dead center above it higher up. It did make a difference as I dropped 5% fan speed and 5* C according to Cataylst by moving from the C5 to the HAF. I was messing around one day and discovered that it was hardly blowing any air at all. When I tilted the case on it's side slightly, airflow picked up big time. I put two books under the feet, since CM can't make holes for mounting the casters to line up with the ones on the case, and now I'm down to 50*C on 1st, 45*C on 2nd with no other changes using RivaTuner to auto control fan speed.

Cliff notes: Physics! The fan has to intake air to blow air.
 
Joined
Apr 19, 2009
Messages
626 (0.20/day)
Likes
18
Processor QuadCore AMD Phenom II X4 Black Edition 940, 3500 MHz
Motherboard Biostar TA790GX XE
Cooling fans and hs
Memory CORSAIR XMS2 DHX 4GB (2 x 2GB) 800mhz 4-4-4-12
Video Card(s) Galaxy GTX 460 [retired -> XFX 8600 GTS (931/1917/2300)
Storage OCZ Vertex LE
Display(s) Acer G235H
Case Antec Nine Hundred Black Steel ATX Mid Tower
Audio Device(s) motherboard built in
Power Supply CORSAIR CMPSU-550VX 550W
Software windows 7 ultimate 64
#9
when you put a side fan for the video card, do you make it blow the air out of the case or in to the case to blow on the video card?
 
Joined
Feb 24, 2009
Messages
3,455 (1.07/day)
Likes
708
System Name Money Hole
Processor Core i7 970
Motherboard Asus P6T6 WS Revolution
Cooling Noctua UH-D14
Memory 2133Mhz 12GB (3x4GB) Mushkin 998991
Video Card(s) Sapphire Tri-X OC R9 290X
Storage Samsung 1TB 850 Evo
Display(s) 3x Acer KG240A 144hz
Case CM HAF 932
Audio Device(s) ADI (onboard)
Power Supply Enermax Revolution 85+ 1050w
Mouse Logitech G602
Keyboard Logitech G710+
Software Windows 10 Professional x64
#10
You can do either. Though give thought to the fact that both the HAF 932 and 922 blow air in, even though they have big fans. I think the Stacker 830 does too.
 
Joined
Mar 27, 2007
Messages
806 (0.21/day)
Likes
188
Location
Tampa FL
Processor AMD Ryzen 1700X
Motherboard Asus Prime X370 Pro
Cooling Corsair Hydro Series H110i
Memory 16 GB Corsair Vengeance LPX DDR4 3000 Mhz CAS 15
Video Card(s) Asus Radeon RoG RX 480 Strix OC 8GB
Storage Samsung EVO 850 1 TB
Display(s) Asus PB258Q 25" 2560x1440
Case Cooler Master Master Case 5 Pro
Power Supply Corsair HX 850
Software Windows 10 Pro 64
#11

Mussels

Moderprator
Staff member
Joined
Oct 6, 2004
Messages
46,130 (9.57/day)
Likes
13,564
Location
Australalalalalaia.
System Name Daddy Long Legs
Processor Ryzen R7 1700, 3.9GHz 1.375v
Motherboard MSI X370 Gaming PRO carbon
Cooling Fractal Celsius S24 (Silent fans, meh pump)
Memory 16GB 2133 generic @ 2800
Video Card(s) MSI GTX 1080 Gaming X (BIOS modded to Gaming Z - faster and solved black screen bugs!)
Storage 1TB Intel SSD Pro 6000p (60TB USB3 storage)
Display(s) Samsung 4K 40" HDTV (UA40KU6000WXXY) / 27" Qnix 2K 110Hz
Case Fractal Design R5. So much room, so quiet...
Audio Device(s) Pioneer VSX-519V + Yamaha YHT-270 / sennheiser HD595/518 + bob marley zion's
Power Supply Corsair HX 750i (Platinum, fan off til 300W)
Mouse Logitech G403 + KKmoon desk-sized mousepad
Keyboard Corsair K65 Rapidfire
Software Windows 10 pro x64 (all systems)
Benchmark Scores Laptops: i7-4510U + 840M 2GB (touchscreen) 275GB SSD + 16GB i7-2630QM + GT 540M + 8GB
#12
the only time case fans help is if the air in your case is actually hot.

If you can take your side panel off without feeling a waft of hot air blow out, more/faster case fans will not help you one bit.
 

P4-630

The Way It's Meant to be Played
Joined
Jan 5, 2006
Messages
9,205 (2.11/day)
Likes
8,969
Location
Vinewood
System Name Sansaya / Sansaya Laptop
Processor Intel i5 6500 / Intel i3 7100U
Motherboard Asus Z170 Pro Gaming / HP 83A3 (U3E1)
Cooling Cooler Master Hyper 212 Evo + Thermal Grizzly Kryonaut + Scythe 1200rpm + 4 case fans / Fan
Memory 16GB DDR4 Corsair Vengeance LPX 3000MHz CL15 / 6GB DDR4 Samsung 2400MHz CL15
Video Card(s) MSI GTX1070 Gaming X 8GB / Intel HD620
Storage Samsung 850 Pro 512GB + Hitachi 2.5" 7200rpm 750GB / Samsung 256GB M.2 SSD
Display(s) 23.8" Dell S2417DG 165Hz G-Sync 1440p + 21.5" LG 22MP67VQ IPS 60Hz 1080p / 14" 1080p IPS Glossy
Case Be quiet! Silent Base 600 - Window / HP Pavilion
Audio Device(s) SupremeFX Onboard / Realtek onboard + B&O speaker system
Power Supply Be quiet! Straight Power 10 500 Watt CM / Powerbrick
Mouse Logitech MX Anywhere 2 Laser wireless / Logitech Nano Laser wireless
Keyboard RAPOO E9270P Black 5GHz wireless / HP backlit
Software Windows 8.1 x64 / Windows 10
Benchmark Scores Superposition 14106 (1080p medium) Fire Strike 21169 graphics score. Valley 8xAA 4218
#13
Blowing straight up into my video card. Virtually no change in temps. DAMNNN.
I have 1 80mm and 1 120mm fan both SUCKING the hot air away, cool air gets sucked in from the side of the case. Idle temps vary from 30~37 degrees C with 22~30 degrees room temp.

100% load temps are 45~50 max with OC.
 
Joined
Apr 28, 2009
Messages
386 (0.12/day)
Likes
35
System Name Will of D
Processor Intel 980x
Motherboard EVGA Classified E759 Limited Edition
Cooling Water bitches
Memory 6GB Corsair Dominator GTX2!!!!!
Video Card(s) 2x EVGA 580 Superclocked
Storage 40GB Kingston V-series SSDx2 in RAID0, 500GB Seagate 7200.10
Display(s) NEC 3090 and 2x NEC P221w's
Case Custom (mountain mod like)
Audio Device(s) Asus Xonar D2X
Power Supply Anter 1000W TruePower Quattro
Software Win 7 x64 Pro
#14
I've got two bottom fans in my Thermaltake Armor+, but they are exhaust not intake. It takes all the hot air from the video cards and exits it out the bottom, makes a really big difference.
 
Joined
Jul 30, 2007
Messages
6,560 (1.73/day)
Likes
835
System Name Vintage
Processor i7 - 3770K @ Stock
Cooling Scythe Zipang II
Memory 2x4GB Crucial DDR3
Video Card(s) MSI GTX970
Storage M4 124GB SSD// WD Black 640GB// WD Black 1TB//Samsung F3 1.5TB
Display(s) Samsung SM223BW 21.6"
Case Generic
Power Supply Corsair HX 520W
Software Windows 7
#15
I have the side panel off at all times.
 

Mussels

Moderprator
Staff member
Joined
Oct 6, 2004
Messages
46,130 (9.57/day)
Likes
13,564
Location
Australalalalalaia.
System Name Daddy Long Legs
Processor Ryzen R7 1700, 3.9GHz 1.375v
Motherboard MSI X370 Gaming PRO carbon
Cooling Fractal Celsius S24 (Silent fans, meh pump)
Memory 16GB 2133 generic @ 2800
Video Card(s) MSI GTX 1080 Gaming X (BIOS modded to Gaming Z - faster and solved black screen bugs!)
Storage 1TB Intel SSD Pro 6000p (60TB USB3 storage)
Display(s) Samsung 4K 40" HDTV (UA40KU6000WXXY) / 27" Qnix 2K 110Hz
Case Fractal Design R5. So much room, so quiet...
Audio Device(s) Pioneer VSX-519V + Yamaha YHT-270 / sennheiser HD595/518 + bob marley zion's
Power Supply Corsair HX 750i (Platinum, fan off til 300W)
Mouse Logitech G403 + KKmoon desk-sized mousepad
Keyboard Corsair K65 Rapidfire
Software Windows 10 pro x64 (all systems)
Benchmark Scores Laptops: i7-4510U + 840M 2GB (touchscreen) 275GB SSD + 16GB i7-2630QM + GT 540M + 8GB
#16
Joined
Jan 11, 2009
Messages
9,025 (2.77/day)
Likes
1,446
Location
Montreal, Canada
System Name Fun waste of money
Processor i7 3930k @ 4 Ghz
Motherboard AsRock X79 Fatal1ty Professional
Cooling Dark Rock Pro 3 (removed 120mm fan)
Memory 32GB (4x8gb) 2133Mhz CL9 Mushkin RedLine
Video Card(s) EVGA ACX 3.0 GTX 1060 6GB
Storage 3.25TB separated in 5 SSDs (SanDisk Extreme Pro, Intel 730 & 520, 2*Crucial MX100)
Display(s) 27" 2560x1440 [Korean] PCBANK PB2700
Case BeQuiet! SilentBase 800
Audio Device(s) iBasso D10 + AKG KXXX
Power Supply EVGA P2 750W 80+ Platinum semi-fanless
Mouse Sensei RAW
Keyboard Black cherry MX Thermaltake ESports
Software Windows 10 Pro X64
#17
I have the side panel off at all times.
Not really good o_O with good airflow, you can make the components cooler... and dust is also bad