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Case Side Cover Question

post #1 of 10
Thread Starter 
This is a normal mid-tower ATX case. The PSU is placed horizontally and there's a 8cm case exhaust fan just under it. There's also a place for putting a 6cm or a smaller one (i dunno it's just very small comparing to 8cm) There's also 2x8cm places at the front of the chasis but the front panel doesn't have holes to get air. I solved that by drilling some holes to that front panel. I also changed the HDDs' location to allow the air from front to go directly to my Graphics card.

Now here's the funny part. When the left side cover is closed the CPU gets 44-45c. When it's open, the temp is down to 41-42c. I know this can be due to CPU fan not getting enough air but I also put a 8cm to the side panel directly blowing air to the CPU fan. Nothing changed. The only solution is to open the cover.

Now that cover being open, do you think it affects the cpu fan or the exhaust fan steals air which cpu fan should get when the side cover is closed ?
Intel Evilnow
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Intel Evilnow
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SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
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WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
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Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
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Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
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post #2 of 10
Usually this type of temp increase is due to ambient temps. It's takes a lot of trial and error to find your cases optimal airflow. Since your doin' the mod thing, Make a spot in the front for a 120mm fan and a spot in the back also. 120mm fans move a lot more air than 80mm fans do.
post #3 of 10
Thread Starter 
Hmm, case's width doesn't allow me to put a 12cm on the back. I can only do one 12cm place in front but i think it won't worth it and it'll be tough.

I guess i'll need a new case like Thermaltake Armor Full Tower.
Intel Evilnow
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SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
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WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
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Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
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Intel Evilnow
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SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
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WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
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Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
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post #4 of 10
Perhaps you could use an 80mm to 120mm adapter for the fan port in the rear of the case if your HSF or expansion cards don't get in the way? Also, regarding the ambient temperature aspect of things... how about making a cutout in your motherboard tray directly behind your CPU socket, allowing more air to reach the back of your MB. Installing a low profile fan in the case panel directly over the new cutout could help by a few degrees, and wouldn't be a terribly difficult mod.
post #5 of 10
Thread Starter 
Actually I thought of that. Will it really help CPU from behind ? There are 3 fans very close to each other and two of them draws air and blows outside. You know those Tagan Easycons have a big fan underneath. It also steals air from cpu fan. I'll see how I can improve cpu fan getting more air.
Intel Evilnow
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Hard DriveHard DriveHard DriveHard Drive
SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
Hard DriveOptical DriveCoolingOS
WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
MonitorKeyboardPowerCase
Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
MouseOther
A4tech x7 F3 Sunbeam RHK-EX-BA Rheobus-Extreme Fan Controlle... 
CPUMotherboardGraphicsRAM
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Hard DriveHard DriveOptical DriveOS
Western Digital WD5001AALS Seagate Barracuda ST3250410AS Asus DRW-1814BLT Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
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Intel Evilnow
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Hard DriveHard DriveHard DriveHard Drive
SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
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WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
MonitorKeyboardPowerCase
Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
MouseOther
A4tech x7 F3 Sunbeam RHK-EX-BA Rheobus-Extreme Fan Controlle... 
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Western Digital WD5001AALS Seagate Barracuda ST3250410AS Asus DRW-1814BLT Windows 7 Ultimate x64 SP1 
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Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
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post #6 of 10
Quote:
Originally Posted by Catscratch View Post
...Now here's the funny part. When the left side cover is closed the CPU gets 44-45c. When it's open, the temp is down to 41-42c. I know this can be due to CPU fan not getting enough air but I also put a 8cm to the side panel directly blowing air to the CPU fan. Nothing changed. The only solution is to open the cover.

Now that cover being open, do you think it affects the cpu fan or the exhaust fan steals air which cpu fan should get when the side cover is closed ?
Quote:
Originally Posted by Catscratch View Post
Actually I thought of that. Will it really help CPU from behind ? There are 3 fans very close to each other and two of them draws air and blows outside. You know those Tagan Easycons have a big fan underneath. It also steals air from cpu fan. I'll see how I can improve cpu fan getting more air.
Seems to me like you already answered your own question, in a way. There could be several things going on, and I'll try to hit a few of 'em. True, your PSU is probably stealing the air from your CPU fan, reducing its overall effectiveness - even though you installed that 8cm window fan. You could try ducting them in Push/Pull, with the 8cm force feeding fresh air to your CPU cooler if you've got the room to work with.

If you don't have the room for that, perhaps adding an intake fan on the top of the case or the left panel will help things. Think about this - all those fancy heatsinks and fans are great for conducting the heat away from the chips themselves, but the sockets they're in are going to radiate that heat through to the MB itself, affecting your ambient temps. Most people neglect the back side of their MB when it comes to case cooling. If you've got access to an IR or Laser Thermometer, point it at the back of your CPU socket and compare that to your ambient temp... See what I mean? One silent little 40mm or 80mm fan may be all you need to change the airflow dynamics of your case.
post #7 of 10
Quote:
Originally Posted by Catscratch View Post
Actually I thought of that. Will it really help CPU from behind ? There are 3 fans very close to each other and two of them draws air and blows outside. You know those Tagan Easycons have a big fan underneath. It also steals air from cpu fan. I'll see how I can improve cpu fan getting more air.
The side panel is solid steel. How do you cut it?
post #8 of 10
Quote:
Originally Posted by Catscratch View Post
I guess i'll need a new case like Thermaltake Armor Full Tower.
Nooooo!
    
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post #9 of 10
Quote:
Originally Posted by Catscratch View Post
This is a normal mid-tower ATX case. The PSU is placed horizontally and there's a 8cm case exhaust fan just under it. There's also a place for putting a 6cm or a smaller one (i dunno it's just very small comparing to 8cm) There's also 2x8cm places at the front of the chasis but the front panel doesn't have holes to get air. I solved that by drilling some holes to that front panel. I also changed the HDDs' location to allow the air from front to go directly to my Graphics card.

Now here's the funny part. When the left side cover is closed the CPU gets 44-45c. When it's open, the temp is down to 41-42c. I know this can be due to CPU fan not getting enough air but I also put a 8cm to the side panel directly blowing air to the CPU fan. Nothing changed. The only solution is to open the cover.

Now that cover being open, do you think it affects the cpu fan or the exhaust fan steals air which cpu fan should get when the side cover is closed ?
Your problem is you have your fans out of phase, when you have one fan blowing air onto another fan you will slow the speed of both fans. Revers the fan so it is pulling air from the cpu, and you will see a drop in temps when the case panel is back on.
300
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post #10 of 10
Thread Starter 
Quote:
Originally Posted by Choggs396 View Post
LMAO That was from First Contact right ? While he was talking to that black woman about the tactics he uses. Hehehe

Anyway, Odie you're right. I just cut a 1.5l plastic bottle wide enough for the fan and put it in front of the cpu fan to allow getting air from far of those other fans.

It works, it was 45 idle and it's 43 after that. So basically, 3 fans so close don't do good. I'll turn the exhaust fan to blow air inside and see what happens. It's not facing the cpu fan, i wonder if it'll slow the cpu fan down no matter what.

Quote:
Originally Posted by linskingdom View Post
The side panel is solid steel. How do you cut it?
I have access to a metalworks shop. A friend drilled it for me.
Intel Evilnow
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Hard DriveHard DriveHard DriveHard Drive
SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
Hard DriveOptical DriveCoolingOS
WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
MonitorKeyboardPowerCase
Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
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A4tech x7 F3 Sunbeam RHK-EX-BA Rheobus-Extreme Fan Controlle... 
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Phenom II x6 1090t BE 3.6/4.0 Turbo@def.volt MSI K9A2 Platinum v1 Sapphire HD6850 1GB 850/1100@def.volt Kingston 2x2gb Hyperx 1066 5-5-5-15 
Hard DriveHard DriveOptical DriveOS
Western Digital WD5001AALS Seagate Barracuda ST3250410AS Asus DRW-1814BLT Windows 7 Ultimate x64 SP1 
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Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
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A4 tech Swop-3 
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Intel Evilnow
(18 items)
 
   
CPUMotherboardGraphicsRAM
i5 2500k 4ghz @ Offset -0.015 Asus P8P67 Evo (bios 3207) Sapphire 280x Tri-x 3GB OC (Stock 1020/1500 Non... G.Skill RipjawsX 2x4gb 1866mhz 9-10-9-28-2n @ 1.5v 
Hard DriveHard DriveHard DriveHard Drive
SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
Hard DriveOptical DriveCoolingOS
WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
MonitorKeyboardPowerCase
Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
MouseOther
A4tech x7 F3 Sunbeam RHK-EX-BA Rheobus-Extreme Fan Controlle... 
CPUMotherboardGraphicsRAM
Phenom II x6 1090t BE 3.6/4.0 Turbo@def.volt MSI K9A2 Platinum v1 Sapphire HD6850 1GB 850/1100@def.volt Kingston 2x2gb Hyperx 1066 5-5-5-15 
Hard DriveHard DriveOptical DriveOS
Western Digital WD5001AALS Seagate Barracuda ST3250410AS Asus DRW-1814BLT Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
Mouse
A4 tech Swop-3 
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