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Hot FX-8350 (in Prime95 only) - Page 4

post #31 of 34
Ok so the OP seems a little 'misguided' from the info He has chosen to latch onto from both the links he posted.

For anyone who didn't follow the links a few quotes from the people claiming to be running 'cool' under 62c, and others giving their opinion to the 8350 owners; with the stock HSF!

Owner from first link - 'just ran Prime95 and I was getting around 59*C , I am using the stock cooler.'

At no point does he say; how long for; what voltage hes running; what other hardware (case etc) he has.

Reply in first link - 'If you take Prime95 stability seriously Piledriver will drive you mad even with a high end cooler/watercooling, you'll struggle to get any sort of overclock whilst keeping temps in check under stress testing.'

This guy is speaking from experience; 'I've not witnessed a shutdown yet but I've seen throttling occur at just 4.6ghz and that was under water, there doesn't seem to be a way to cool the socket temp which skyrockets out of control under Prime95 testing. I have just been running it at stock since.'

That was under WATER thumb.gif

From the 2nd link you posted:

Owner - 'FX-8350 @4.5 stock cooler...after running benchmarks for hours...' and links a HWM SS where his temps are 55 core and 49 socket but......

2 posts later same person - 'Using a crosshair v formula mobo.. lower the cpu voltage for less heat? Pretty sure its on auto...haven't seen any problems gaming wise or anything yet. Can't run prime or any cpu intensive benchmarks due to stock cooler. For gaming hours on end though I haven't gone over 51 c. Will try suggestion when I get home.'

so.... put it all together and .....

OP, you have an Asus board yes?

Manually set your V-Core to the stock setting for you 8350 and boom! you heat issue will vanish.
Asus..... setting 'AUTO' V-Core .5-1V above needed for ..... well any AM3/+ board i've owned from them wink.gif

Hope this helps, clear up where the info is coming from AND fixes your issue!

Regards.
post #32 of 34
Thread Starter 
Hey Synister,

thanks for the post and little bit of reassurance it gives... however...

"Reply in first link - 'If you take Prime95 stability seriously Piledriver will drive you mad even with a high end cooler/watercooling, you'll struggle to get any sort of overclock whilst keeping temps in check under stress testing."

I'm not happy with just saying "Oh well, my pc is "stable" just not in prime95. it overheats and even errors out if I stress it with Prime or IBT, but games and OS runs fine..."

this is unacceptable. Either your PC is stable, or it's not. as of now, mine is not. by setting clocks back to stock, I am able to run and pass prime95 and IBT, but temps are still unsettling.

(can someone PLEASE tell me which temps are which, in relation to the "CPU" vs "package" in HWmonitor?)

My "CPU" temp in HWmonitor hits 65C during Prime and IBT. On stock air cooling I suppose this isn't too bad, but remember, it was 30-40 degrees (F) outside, and I had my window open for these tests. (window right behind PC). If other people can run their 8350 on stock air cooling, *OVERCLOCKED speeds, and run prime95 and get 51-59C... then I think mine is running hot (i.e., getting RMAd for a new chip)
post #33 of 34
CPU temp is socket temp. Package temp is core temp.
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CPUMotherboardGraphicsRAM
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Hard DriveOptical DriveCoolingCooling
SAMSUNG SSD 840 Liteon IHAS 524 DVD writer  XSPC Raystorm CPU Waterblock (2) EK-PSC Adapter 90° G1/4 Black Nickel 
CoolingCoolingCoolingCooling
EK Radeon HD 7950 VGA Liquid Cooling Block Alphacool NexXxoS XT45 Full Copper 360mm Radiator Swiftech MCP655 XSPC Single Bay Reservoir 5.25" 
CoolingCoolingCoolingCooling
(6) Swiftech Helix 120MM 9-Blade Z-Bearing Fan ... (10) XSPC G1/4" to 1/2" ID, 3/4" OD Compression... PrimoFlex Advanced LRT Tubing - 1/2in. ID X 3/4... (2) EK-PSC Adapter 45° G1/4 Nickel 
OSMonitorKeyboardPower
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Movin' on Up
(23 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 ASUS SABERTOOTH 990FX R2.0 MSI R7950-3GD5/OC BE Samsung 8GB DDR3-1600 (PC3-12800) 
Hard DriveOptical DriveCoolingCooling
SAMSUNG SSD 840 Liteon IHAS 524 DVD writer  XSPC Raystorm CPU Waterblock (2) EK-PSC Adapter 90° G1/4 Black Nickel 
CoolingCoolingCoolingCooling
EK Radeon HD 7950 VGA Liquid Cooling Block Alphacool NexXxoS XT45 Full Copper 360mm Radiator Swiftech MCP655 XSPC Single Bay Reservoir 5.25" 
CoolingCoolingCoolingCooling
(6) Swiftech Helix 120MM 9-Blade Z-Bearing Fan ... (10) XSPC G1/4" to 1/2" ID, 3/4" OD Compression... PrimoFlex Advanced LRT Tubing - 1/2in. ID X 3/4... (2) EK-PSC Adapter 45° G1/4 Nickel 
OSMonitorKeyboardPower
Windows 7 64bit Samsung SyncMaster P2370HD  Logitech K300 Rosewill Tachyon-650 
CaseMouseMouse Pad
CoolerMaster HAF Stacker 935 Logitech Allsop 
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post #34 of 34
I've noticed that as soon as I apply any OC to my 8350, temps fly up. (Even multi 20.5x or NB Freq 204)

Also: P95 will burn your CPU more than any other bench because of what it does to send your CPU to 100% load. P95 will make your CPU hotter than any other application/game. Also, if people see their CPU max out at 62C, it is because it is throttling itself down to stay in the safe areas. AMD has said 62C for the chip, and 68C for the socket (different motherboards may have different limits).

BTW, P95 peaks at 38C for me on my cooling at stock, but will hit 52C at 4.2GHz and 58C with a bit more
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4690k Gigabyte Z97X Gaming 5 Gigabyte Windforce 1070 Corsair Vengeance 1600C10 1.5V (2x8GB) 
Hard DriveHard DriveHard DriveHard Drive
Seagate 1TB (ST1000DM003 9YN162) Seagate 2TB (ST2000DM001 1CH164 Seagate 1TB (ST1000DM003 1CH162 Trion 150 960GB 
Optical DriveCoolingOSMonitor
Some LG Blu-Ray Corsair H100 Windows 7 Home Premium 64bit Acer V246HL 
MonitorMonitorKeyboardPower
Acer G245HQ ASUS MX25AQ Logitec G710+ Rosewill Capstone 450W 
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CPUMotherboardGraphicsRAM
AMD FX 8350 ASUS Sabertooth 990FX EVGA 560TI ADATA 4x2GB 1600C9 1.65V-1.5V 
Hard DriveCoolingOSPower
Some 2.5in 1TB drive Stock Windows 7 Home Premium 64bit Corsair TX850 
Case
Cooler Master HAF 
CPUMotherboardRAMOptical Drive
i7-960 Gigabyte X58 ADATA 2x2GB 1600C9 1.65V-1.5V Generic DVD 
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Primary
(19 items)
 
Secondary
(9 items)
 
Tertiary
(10 items)
 
CPUMotherboardGraphicsRAM
4690k Gigabyte Z97X Gaming 5 Gigabyte Windforce 1070 Corsair Vengeance 1600C10 1.5V (2x8GB) 
Hard DriveHard DriveHard DriveHard Drive
Seagate 1TB (ST1000DM003 9YN162) Seagate 2TB (ST2000DM001 1CH164 Seagate 1TB (ST1000DM003 1CH162 Trion 150 960GB 
Optical DriveCoolingOSMonitor
Some LG Blu-Ray Corsair H100 Windows 7 Home Premium 64bit Acer V246HL 
MonitorMonitorKeyboardPower
Acer G245HQ ASUS MX25AQ Logitec G710+ Rosewill Capstone 450W 
CaseMouseMouse Pad
Cooler Master Haf XB EVO Roccat Lua My table 
CPUMotherboardGraphicsRAM
AMD FX 8350 ASUS Sabertooth 990FX EVGA 560TI ADATA 4x2GB 1600C9 1.65V-1.5V 
Hard DriveCoolingOSPower
Some 2.5in 1TB drive Stock Windows 7 Home Premium 64bit Corsair TX850 
Case
Cooler Master HAF 
CPUMotherboardRAMOptical Drive
i7-960 Gigabyte X58 ADATA 2x2GB 1600C9 1.65V-1.5V Generic DVD 
CoolingOSMonitorKeyboard
Asetek 510LC Linux with pfSense in VM Some generic 1280x1024 Generic 
CaseMouse
Corsair Carbide 400R Generic 
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