How much difference a fan can make...

FAXA · Sep 9, 2007

Over the past few days I've done a little experiment on the actual impact of having 1x80MM intake fan at the front of the case. The results surprised me allot.

Test Setup:

Intel Core 2 Duo E6300 @ Stock speeds with stock cooler
Geil 2GB DDR2 800mhz
Inno3D nVidia 8800GTS 320MB OC'ed to 650mhz core, 1404mhz memory. Stock cooler.
2x250GB SATA II HDDs
520W Corsair HX PSU

Cooling: 1x120MM fan at the top back, 1x120MM fan at top front (in the drive bays), 1x80mm in the floppy drive bays.

I ran the PC for 24 hours without a bottom intake fan and recorded the results using Riva Tuner, and Speedfan then installed a 80mm fan at the front and recorded the results.

The results were as follows:

No fan:
Average Core temp (GPU) = 69C
Ambient Temperature = 52C
CPU temp = 37C

With Fan:
Average Core temp(GPU) = 58C
Ambient Temperature = 46C
CPU temp = 29C

Before the experiment I didn't think the impact would be as big, but it turns out that the fan worked wonders. The whole reason of me posting this is to just say...well...erm how important an intake fan is.

panchoman · Sep 9, 2007

the bottom 80mm fan is a brilliant idea, but unfortunantly its not widely used yet. the coldest air is under the case of course. the lexa has a mount and a filter for it but doesn't have the fan, but the cosmos does, its a sweet case, imma get it for my next build.

keakar · Sep 9, 2007

do you have open fan grills?

those rear fans mounted with just the holes punched out are very very restrictive and also will make fans noisier.

Demos_sav · Sep 9, 2007

That's a great temperature drop. But how can your 8800 be overclocked to 900 core? It's not possible

Chewy · Sep 9, 2007

so the 80mm was just inside the case? I figure its good to move the air around more inside the case aswell than just have the intake/exaust flow... side fan helps with that.

and yeah Demos he got a trypo I guess, I checked his dropdown system specs and his core is like 650.

FAXA · Sep 10, 2007

Whoops...sorry 'bout the typo.. :eek:

Anyways..I've got open fan grills, i did have holes but quickly changed them due to the fact it sounded like a 747 taking off..

d44ve · Sep 10, 2007

Very interesting...

however, I would like to know to what extent did you control the load on the CPU and did you mimick the same load on the second run?

FAXA · Sep 10, 2007

The only thing I had running was nvidia control panel, Realtek HD audio manager, and aero. I tried to keep the load as consistent as possible through out the tests. But the day in which i had no fan was quite a hot day..and the other was raining so that probably affected the temps a bit.

TheShadowFL · Sep 11, 2007

Fan Cooling

Having worked in an "Air Flow" lab years ago, I've got a good feeling for what it takes to keep things cool in a heated environment.

After loosing an IBM Deathstar drive to heat fatigue, several years ago, I set about developing my own system for keeping my 7200rpm drives COOL.

I finally settled on a cheap little two-fan cooler mounted under the drive with 1/4" spacers, to increase air flow and speed cooling.

Now, my HD stays at room temperature.

I was helping a friend set up his own "Cool" computer. He got a bit carried away.

But hey, it stays cool now.....and it's pretty!
The left side panel is clear Plexiglas and the red fan is mounted in it.

With the cooler attached, his only place to put his HD was in the bottom of the case.
I've done that myself many times and it works great.

Keeping the computer up off of the floor so it doesn't just sit there sucking dirt, helps too.

I hope y'all enjoy the pic's.

Shadow :cool:

AsRock · Sep 11, 2007

keakar said:
do you have open fan grills?

those rear fans mounted with just the holes punched out are very very restrictive and also will make fans noisier.

And the ones at the front too

.

Processor	Intel Core 2 Duo E6300 @3.15GHz
Motherboard	Asus P5N-E SLI NF650i SLi
Cooling	2x120MM fans, Stock Intel Cooler, 1x80mm fans
Memory	2GB DDR2 PC5400 (2x1GB Corsair XMS2 w/ Heat Spreaders)
Video Card(s)	Inno3D 8800GTS 320MB 650MHz Core
Storage	2x 250GB SATA300
Display(s)	Dell D1226H 1600x1200 CRT
Case	Windowed Coolermaster Centurion 5
Audio Device(s)	Creative Sound Blaster Audigy 24-bit
Power Supply	520W Corsair HX Series Modular PSU
Software	Windows Vista™ Home Premium (6.0, Build 6000) (6000.vista_rtm.061101-2205)

Processor	Amd Athlon X2 4600+ Windsor(90nm) EE(65W) @2.9-3.0 @1.45
Motherboard	Biostar Tforce [Nvidia] 550
Cooling	Thermaltake Blue Orb-- bunch of other fans here and there....
Memory	2 gigs (2x1gb) of patriot ddr2 800 @ 4-4-4-12-2t
Video Card(s)	Sapphire X1950pro Pci-E x16 @stock@stock on stock
Storage	Seagate 7200.11 250gb Drive, WD raptors (30/40) in Raid 0
Display(s)	ANCIENT 15" sony lcd, bought it when it was like 500 bucks
Case	Apevia X-plorer blue/black
Audio Device(s)	Onboard- Why get an sound card when you can hum??
Power Supply	Antec NeoHe 550-manufactured by seasonic -replacement to the discontinued smart power series
Software	Windows XP pro SP2 -- vista is still crap

Processor	Intel Core i7-4790 Haswell Quad-Core 3.6GHz LGA 1150 84W
Motherboard	GIGABYTE GA-H87-D3H LGA 1150 Intel H87 HDMI
Cooling	CPU - Cooler Master Hyper T4 / Case - cooler master 120mm rear case fan (Air cooling)
Memory	32GB (4 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Video Card(s)	GTX1060 6GB
Storage	Samsung 512 GB 840 PRO SSD Main Drive and Samsung 512 GB 840 EVO SSD Backup Drive
Display(s)	ASUS 23" LED Monitor
Case	COOLER MASTER Centurion 5 (silver & black)
Audio Device(s)	(onboard audio) Realtek ALC892
Power Supply	CORSAIR SU-750TX 750W ATX12V / EPS12V
Software	Windows 10 Home Premium 64bit Edition

Processor	Intel P4 519K LGA775 3.06GHz @ 3.82GHz
Motherboard	ASUS P5WD2
Cooling	Arctic Cooling Freezer 7 Pro
Memory	3GB Kingston Hyper-X DDR2 3-4-3-6 @667MHz
Video Card(s)	XFX 8800 GTS 320MB XXX Edition @ 630/970
Storage	Samsung 160GB SATA2 7200RPM 8MB
Display(s)	SONY SDM HS75 17' LCD
Case	Interset (black)
Audio Device(s)	Realtek HD ALC882 8-channel onboard
Power Supply	Thermaltake Toughpower 750W
Software	Windows XP Home edition 32bit fully tuned
Benchmark Scores	3dm01-29689 3dm03-31099 3dm05-10298 3dm06-6409

Processor	Q6600 G0 @ 3.2Ghz
Motherboard	Asus p5k-Premium/Black Pearl
Cooling	Luna Block, 240mm rad
Memory	Patriot Extreme PC2-6400 2x2GB
Video Card(s)	Saphire 5850 1GB
Storage	60GB SSD + 2x500GB/1TB/2TB
Display(s)	Samsung 226BW and 50" Panasonic S2
Case	Silverstone TJ-09
Audio Device(s)	X-fi Prelude
Power Supply	Enermax Galaxy Dxx 850watt
Software	Windows7 32Bit
Benchmark Scores	Super Pi 1M 14.333

How much difference a fan can make...

FAXA

New Member

panchoman

Sold my stars!

keakar

Demos_sav

New Member

Chewy

FAXA

New Member

d44ve

New Member

FAXA

New Member

TheShadowFL

New Member

AsRock

TPU addict

Processor	Intel E6600 @ 4.2GHZ Wo0t!
Motherboard	ASUS Striker Extreme & eVGA 680i A1
Cooling	Phase Change !!
Memory	OCZ SLI 1066MHZ (2GB)
Video Card(s)	EVGA 8800 GTX
Storage	Western Digital 320 GB
Case	Antec 900
Power Supply	Lian-Li V2000
Software	Vista Ultimate

Processor	AMD 3900X \ AMD 7700X
Motherboard	ASRock AM4 X570 Pro 4 \ ASUS X670Xe TUF
Cooling	D15
Memory	Patriot 2x16GB PVS432G320C6K \ G.Skill Flare X5 F5-6000J3238F 2x16GB
Video Card(s)	eVga GTX1060 SSC \ XFX RX 6950XT RX-695XATBD9
Storage	Sammy 860, MX500, Sabrent Rocket 4 Sammy Evo 980 \ 1xSabrent Rocket 4+, Sammy 2x990 Pro
Display(s)	Samsung 1080P \ LG 43UN700
Case	Fractal Design Pop Air 2x140mm fans from Torrent \ Fractal Design Torrent 2 SilverStone FHP141x2
Audio Device(s)	Yamaha RX-V677 \ Yamaha CX-830+Yamaha MX-630 Infinity RS4000\Paradigm P Studio 20, Blue Yeti
Power Supply	Seasonic Prime TX-750 \ Corsair RM1000X Shift
Mouse	Steelseries Sensei wireless \ Steelseries Sensei wireless
Keyboard	Logitech K120 \ Wooting Two HE
Benchmark Scores	Meh benchmarks.