Overclock.net › Forums › Cooling › Air Cooling › TC14PE underperforming?
New Posts  All Forums:Forum Nav:

TC14PE underperforming? - Page 2

post #11 of 13
Chip size varies depending on model.
I'm not sure what the FX 8350 layout looks like under the IHS. Just know it's bigger / different from most Intel chips. Somewhere in the back of my mind I seem to remember something about heatpipes in base running front to back works better then side to side, but not sure.
Size of CPU PCB and socket are based on area needed for circuits to connect from CPU to motherboard
IHS is sized to fit on CPU PCB .. more to balance and keep the cooler base flat on the chips for better heat transfer.
At least that's what I think. wink.gif
post #12 of 13
I missed this thread yesterday. redface.gif

Is that mounting system pretty solid feeling to you? I looked at other pics and it looked flimsy, so passed on it.

The FX CPU is a lot larger than intel and covers more area inside. It also generates more heat. I do not use the pea method. Instead I put a pea on the heat sink surface and then use the plastic spatula to spread it around the entire surface, and then start scraping the excess off to get a thin consistent cover.

Next comes mounting. If the cooler is mounted too tight on one side first, then the TIM gets pushed off that side and the CPU will run hot. Been there, done that.

Take a close look at the pic you provided. I can see the square outline of the CPU on the heat sink base. This is typical of AMD FX CPUs for some reason. They are convex and work best with a heat sink that is concave. It looks like the base of that heat sink is flat. You can verify that with a razor blade or similar straight edge. If it is, then the heat sink is only making contact on the edges and the center is filled up with TIM. Not good.

There are at least two fixes for this situation. I have done both.

1) Get a thick TIM like Antec nano diamond that fills the gap and transmits temperatures well. I am using that right now on my 8370 @ 4.95ghz.. Some complain that it is abrasive. So it is lapping your CPU for you. It is not recommended for delidded CPUs for that reason.

2) Lap that puppy. It takes a very flat surface like a sheet of glass, wet and dry sandpaper from 400 to 800 grit, and patience. Depending on lots of variables it will give 3-10C lower temperatures.

I hope this helps. smile.gif
Junkyard Dog
(17 items)
 
Blackie
(17 items)
 
 
CPUMotherboardGraphicsRAM
AMD Ryzen 1700 Biostar X370 GT7 Sapphire Nitro Fury G. Skill Ripjaws ddr4 3200 16 GB 4x4 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 500gb SSD Western Digital 500gb  Memorex Lightscribe dvd Thermalright Silver Arrow IB-E Extreme 
OSMonitorKeyboardPower
Win 10 64bit Pixio 27" 1440P yes Seasonic 850 watt  
CaseMouseMouse PadAudio
Silverstone Redline RL05 Evoluent vertical mouse yes Creative X-FI  
Other
Sennheiser headphones 
CPUMotherboardGraphicsRAM
AMD FX8370 @ 5 ghz ASUS Sabertooth Sapphire Fury G Skill F3-14900CL9Q-16GBXL 
Hard DriveHard DriveOptical DriveCooling
Western Digital Samsung 850 EVO Memorex Lightscribe dvd Thermalright Silver Arrow IB-E Extreme 
OSMonitorKeyboardPower
Win X 64 bit Pixio 27" 1440P  yes Seasonic SS-850KM Active PFC F3 
CaseMouseMouse PadAudio
Silverstone Redline RL02b Evoluent VM4 yes Creative Soundblaster Z  
Audio
Sennheiser 428 headphones 
  hide details  
Reply
Junkyard Dog
(17 items)
 
Blackie
(17 items)
 
 
CPUMotherboardGraphicsRAM
AMD Ryzen 1700 Biostar X370 GT7 Sapphire Nitro Fury G. Skill Ripjaws ddr4 3200 16 GB 4x4 
Hard DriveHard DriveOptical DriveCooling
Samsung 850 EVO 500gb SSD Western Digital 500gb  Memorex Lightscribe dvd Thermalright Silver Arrow IB-E Extreme 
OSMonitorKeyboardPower
Win 10 64bit Pixio 27" 1440P yes Seasonic 850 watt  
CaseMouseMouse PadAudio
Silverstone Redline RL05 Evoluent vertical mouse yes Creative X-FI  
Other
Sennheiser headphones 
CPUMotherboardGraphicsRAM
AMD FX8370 @ 5 ghz ASUS Sabertooth Sapphire Fury G Skill F3-14900CL9Q-16GBXL 
Hard DriveHard DriveOptical DriveCooling
Western Digital Samsung 850 EVO Memorex Lightscribe dvd Thermalright Silver Arrow IB-E Extreme 
OSMonitorKeyboardPower
Win X 64 bit Pixio 27" 1440P  yes Seasonic SS-850KM Active PFC F3 
CaseMouseMouse PadAudio
Silverstone Redline RL02b Evoluent VM4 yes Creative Soundblaster Z  
Audio
Sennheiser 428 headphones 
  hide details  
Reply
post #13 of 13
Thread Starter 
Quote:
Originally Posted by doyll View Post

Chip size varies depending on model.
I'm not sure what the FX 8350 layout looks like under the IHS. Just know it's bigger / different from most Intel chips. Somewhere in the back of my mind I seem to remember something about heatpipes in base running front to back works better then side to side, but not sure.
Size of CPU PCB and socket are based on area needed for circuits to connect from CPU to motherboard
IHS is sized to fit on CPU PCB .. more to balance and keep the cooler base flat on the chips for better heat transfer.
At least that's what I think. wink.gif
Thanks for sharing thumb.gif
Quote:
Originally Posted by miklkit View Post

I missed this thread yesterday. redface.gif

Is that mounting system pretty solid feeling to you? I looked at other pics and it looked flimsy, so passed on it.

The FX CPU is a lot larger than intel and covers more area inside. It also generates more heat. I do not use the pea method. Instead I put a pea on the heat sink surface and then use the plastic spatula to spread it around the entire surface, and then start scraping the excess off to get a thin consistent cover.

Next comes mounting. If the cooler is mounted too tight on one side first, then the TIM gets pushed off that side and the CPU will run hot. Been there, done that.

Take a close look at the pic you provided. I can see the square outline of the CPU on the heat sink base. This is typical of AMD FX CPUs for some reason. They are convex and work best with a heat sink that is concave. It looks like the base of that heat sink is flat. You can verify that with a razor blade or similar straight edge. If it is, then the heat sink is only making contact on the edges and the center is filled up with TIM. Not good.

There are at least two fixes for this situation. I have done both.

1) Get a thick TIM like Antec nano diamond that fills the gap and transmits temperatures well. I am using that right now on my 8370 @ 4.95ghz.. Some complain that it is abrasive. So it is lapping your CPU for you. It is not recommended for delidded CPUs for that reason.

2) Lap that puppy. It takes a very flat surface like a sheet of glass, wet and dry sandpaper from 400 to 800 grit, and patience. Depending on lots of variables it will give 3-10C lower temperatures.

I hope this helps. smile.gif
It makes more sense to evenly spread the TIM so it covers the entire base of the cooler.
It might help lower my temps.

I believe the base of the tc14pe is flat, its tightly screwed in.
You are right though, the square outline of the CPU on the heat sink base shows that making good contact with the cpu. But no TIM on the outer sides of the IHS could be a problem.

Next time I'll try your TIM spreading method. It seems it'd work better.

I really wish I could lap my cpu, But this is my work pc & I'm a bit pessimistic redface.gif

Thank you smile.gif
PolaRyz
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen R7 1700x Asus Crosshair VI Hero Asus GTX 1060 6Gb Hyper X Predator 3000Mhz 32gb 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 GB Seagate ST1000DM003 Toshiba DC01ACA300 Phanteks TC14PE 
OSMonitorMonitorPower
Windows 10 Pro x64 LG 23MP68VQ LG 23MP68VQ SeaSonic S12G 750w 80+ Gold 
CaseMouseMouse Pad
Phanteks Enthoo Pro Logitech G402 Hyperion Fury Steelseries Qck Mass 
  hide details  
Reply
PolaRyz
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD Ryzen R7 1700x Asus Crosshair VI Hero Asus GTX 1060 6Gb Hyper X Predator 3000Mhz 32gb 
Hard DriveHard DriveHard DriveCooling
Crucial MX100 256 GB Seagate ST1000DM003 Toshiba DC01ACA300 Phanteks TC14PE 
OSMonitorMonitorPower
Windows 10 Pro x64 LG 23MP68VQ LG 23MP68VQ SeaSonic S12G 750w 80+ Gold 
CaseMouseMouse Pad
Phanteks Enthoo Pro Logitech G402 Hyperion Fury Steelseries Qck Mass 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Air Cooling
Overclock.net › Forums › Cooling › Air Cooling › TC14PE underperforming?