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Under Motherboard Heat Dissipation

post #1 of 4
Thread Starter 
2 methods:
1. Heat Sink Method
Intro: This method utilizes Anodized aluminum plates as well as ambient air flow underneath the system. This method can also be adjusted to Water cooling but is a bit more...makeshift than many would like for their water to run through.
-Take 1 sheet of anodized aluminum (12X24x.112") and cut that into 2 sheets the size of your motherboard.
-Take both sheets (making sure to have the anodized side up) and mark the holes for your system on the plates.
-Use a sheet hole punch to pop out holes on the marks (try to be as exact as you can or you will end up skiwompifying your aluminum with holes).
-Take some sort of rubber sheet and cut into small circles (approx. .75-1" dia. and 1/8" tall)
-Place 1 on each corner of the system and then 2 in the center but spread apart.
-glue the rubber "feet" onto the anodized aluminum (making sure you are gluing to the non-anodized side) using super glue for best results.
-once both anodized plates are glued to the feet, you will have a gap inbetween.

This will basically act as a heat spreader for the system, and based on the ambient air flow in the computer dissipation will vary. For most effective cooling, purchase Copper pipes (1/8" OD) and snake configure them to the size and width of your motherboard. Attach appropriate water fixtures to both ends and attach to your cooling lines. this method cooled the system (with ambient air flow) by approximately 4-6C (not too terrible for 15 dollars of material). I haven't tried with water cooling just yet but I believe temperature dissipation should be around 15C.

**Be sure to check Anodized side for scratches to prevent ESD through Induction on the system board, I've never had problems with it but it is possible, to repair the scratches use a small amount of superglue in the wound. If you have a Multi-meter, test conductivity.

2. Back case Radiator.
-Take copper pipes (approx 6-8ft 1/8 - 1/4" OD) and snake configure it to the underside of the mobo tray (the side without the motherboard).
-Set the ends up with appropriate fixtures and connect to either existing water cooling system, or a small water pump and a reservoir (mine leads into my minifridge).

This method will dissipate heat underneath the motherboard and drop ambient temperature within the case. This method showed to drop the system temp to 7C when reservoir was at room temperature and ambient air flow was 80F. Using a modified mini fridge temperature drop was 12-15C.
Deus |X| Machina
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CPUMotherboardGraphicsRAM
Core 2 Duo E6800 Conroe P5N32-E SLI Plus XFX nVidia GeForce 7950 GT 2x 1GB PQI w/ Heat Spreader 
Hard DriveOptical DriveOSMonitor
Seagate 320GB 7200RPM & WD 250GB 7200RPM sucks WinXP Pro SP2 HANNS-G 19" 5ms Widescreen LCD monitor 
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Logitech PS/2 Keyboard w/ enhanced response 550 Watt Antec stock powersupply really big and amazing HID-Compliant MX518 Optical Mouse 
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Deus |X| Machina
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CPUMotherboardGraphicsRAM
Core 2 Duo E6800 Conroe P5N32-E SLI Plus XFX nVidia GeForce 7950 GT 2x 1GB PQI w/ Heat Spreader 
Hard DriveOptical DriveOSMonitor
Seagate 320GB 7200RPM & WD 250GB 7200RPM sucks WinXP Pro SP2 HANNS-G 19" 5ms Widescreen LCD monitor 
KeyboardPowerCaseMouse
Logitech PS/2 Keyboard w/ enhanced response 550 Watt Antec stock powersupply really big and amazing HID-Compliant MX518 Optical Mouse 
Mouse Pad
Crimson 
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post #2 of 4
I think this should be an faq? or a guide? Some pix would be nice!
My System
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AMD Athlon 64 X2 4000+ Brisbane 2.1GHz Biostar TF-7050m2 HIS x1950pro 512mb 2x1024mb OCZ Reaper 
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My System
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AMD Athlon 64 X2 4000+ Brisbane 2.1GHz Biostar TF-7050m2 HIS x1950pro 512mb 2x1024mb OCZ Reaper 
Hard DriveOSMonitorKeyboard
2 Maxtor 80gb SATA Raid 0 Win XP Home LG Flatron 19" Logitech 
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Antec Neopower 480 watts Apevia x-QPack Blue/Black Logitech Mx500 
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post #3 of 4
I just use some thermal pads and place them underneath my chipset and RAM. Some heat is transfered from the mobo to the motherboard plate.
Once again...
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i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
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Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
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Once again...
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i7 920 [4.28GHz, HT] Asus P6T + Broadcom NetXtreme II VisionTek HD5850 [900/1200] + Galaxy GT240 2x4GB G.Skill Ripjaw X [1632 MHz] 
Hard DriveOSMonitorKeyboard
Intel X25-M 160GB + 3xRAID0 500GB 7200.12 Window 7 Pro 64 Acer H243H + Samsung 226BW XARMOR-U9BL  
PowerCaseMouseMouse Pad
Antec Truepower New 750W Li Lian PC-V2100 [10x120mm fans] Logitech G9 X-Trac Pro 
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post #4 of 4
I just added a blower fan
works good
Old Skool Redux
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Old Skool Redux
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Q6600 GO Lan Party DK P35 T2RS Diamond HD 6870 4x1G GSkill HZ 
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2x WD Caviar Black 1TB Sony DRU 800 Vista Ultimate 2x gt35h 1x g245h 
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6GV2 750 watt Old Skool G700 
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SteelSeries cloth 
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