Overclock.net › Forums › AMD › AMD CPUs › [OFFICIAL] FX-8320/FX-8350 Vishera Owners Club
New Posts  All Forums:Forum Nav:

[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 5432

post #54311 of 68054
Quote:
Originally Posted by mfknjadagr8 View Post

it's not the voltage that is the issue...if your vrms are too hot they will eventually fail...once the magic smoke comes out it's really hard to get it all back in?



Im stupidly monitoring the front back of mobo with an infrared thermometer.

And it perfectly under safe temp im aint pushing it at 100% load and even then this mobo can handle that voltage with vrm cooling.
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
post #54312 of 68054
just let him do it, we all have to learn something the hard way, he was warned
USS CLM8-1701
(39 items)
 
Her Venom
(21 items)
 
Lil Tough Guy
(15 items)
 
CPUMotherboardGraphicsGraphics
AMD FX-8350 Gigabyte 990FXA-UD7 R7970-2PMD3GD5/OC  R7970-2PMD3GD5/OC  
GraphicsGraphicsRAMHard Drive
R7970-2PMD3GD5/OC  R7970-2PMD3GD5/OC  F3-2400C10D-16GTX  OCZ Agility 3 120GB  
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 120GB  Seagate Barracuda 1TB  Segate Barracuda 3TB Rosewill RCR-IM5001 USB2.0 75 in 1 internal Car... 
Optical DriveCoolingCoolingCooling
Pioneer BDR-208DBK Blu-ray Writer Swiftech H20-220 EDGE HD Liquid Cooling Kit Swiftech Komodo 7970 Swiftech MCP-35X2 
CoolingCoolingCoolingCooling
Swiftech MCP35X2 Heat Sink Swiftech MCP35X Reservoir Swiftech Komodo 7970 Swiftech Komodo 7970 
CoolingCoolingCoolingCooling
Alphacool 240mm XT45 Alphacool 120mm XT45 Alphacool 120mm UT60 FrozenQ PC Mods UV Meteor Light Limited Edition... 
CoolingCoolingOSOS
Koolance Radiator Mounting Bracket with Quick-R... Swiftech Komodo 7970 Windows 7 Windows 8  
MonitorMonitorMonitorMonitor
ASUS VG248QE Black 24" 144Hz 1ms  ASUS VG248QE Black 24" 144Hz 1ms  ASUS VG248QE Black 24" 144Hz 1ms  XFX FXTRISTAND Triple Display Monitor Stand  
KeyboardPowerCaseMouse
Logitech G510 XFX pro 1250w black edition Caselabs MAGNUM M8 Case Razer Naga 
AudioAudioOther
Sony 2.1 Razer Megalodon XFX pro 1250w black edition 
CPUMotherboardGraphicsGraphics
8350 batch 1229 pgn  Asus Crosshair V Formula-Z gigabyte 7770 OC gigabyte 7770 OC 
RAMHard DriveHard DriveHard Drive
F3-2400C10D-16GTX OCZ agaility 3 120  OCZ Agility 3 120gb  Seagate 7200rpm 1tb 
Optical DriveOptical DriveCoolingCooling
Pioneer BDR-208DBK Rosewill RCR-IM5001 USB2.0 75 in 1 internal Car... Swiftech MCP-35X White Top Swiftech Quiet Power 240  
CoolingOSOSMonitor
Swiftech Apogee HD Windows 7 Windows 8 LG E2242 
MonitorKeyboardPowerCase
LG E2242 RAZER Black Lycosa Mirror Special Edition Seasonic x660 Cooler Master Storm Stryker 
Mouse
Razer Lachesis 
CPUMotherboardGraphicsRAM
FX 6100 Sabertooth 990fx R2.0 XFX 7770 Core Edition Samsung 1600 2x4 
RAMHard DriveOptical DriveCooling
Samsung 1600 2x4 Unknown as of now  Piorneer BDR-208DBK Swiftech H220  
OSMonitorKeyboardPower
Windows 8  Samsung 60" 120hz 3d LED TV Unknown Seasonic x750 
CaseMouseAudio
Cooler Master Storm Stryker Unknown Pioneer 5.1 
  hide details  
Reply
USS CLM8-1701
(39 items)
 
Her Venom
(21 items)
 
Lil Tough Guy
(15 items)
 
CPUMotherboardGraphicsGraphics
AMD FX-8350 Gigabyte 990FXA-UD7 R7970-2PMD3GD5/OC  R7970-2PMD3GD5/OC  
GraphicsGraphicsRAMHard Drive
R7970-2PMD3GD5/OC  R7970-2PMD3GD5/OC  F3-2400C10D-16GTX  OCZ Agility 3 120GB  
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 120GB  Seagate Barracuda 1TB  Segate Barracuda 3TB Rosewill RCR-IM5001 USB2.0 75 in 1 internal Car... 
Optical DriveCoolingCoolingCooling
Pioneer BDR-208DBK Blu-ray Writer Swiftech H20-220 EDGE HD Liquid Cooling Kit Swiftech Komodo 7970 Swiftech MCP-35X2 
CoolingCoolingCoolingCooling
Swiftech MCP35X2 Heat Sink Swiftech MCP35X Reservoir Swiftech Komodo 7970 Swiftech Komodo 7970 
CoolingCoolingCoolingCooling
Alphacool 240mm XT45 Alphacool 120mm XT45 Alphacool 120mm UT60 FrozenQ PC Mods UV Meteor Light Limited Edition... 
CoolingCoolingOSOS
Koolance Radiator Mounting Bracket with Quick-R... Swiftech Komodo 7970 Windows 7 Windows 8  
MonitorMonitorMonitorMonitor
ASUS VG248QE Black 24" 144Hz 1ms  ASUS VG248QE Black 24" 144Hz 1ms  ASUS VG248QE Black 24" 144Hz 1ms  XFX FXTRISTAND Triple Display Monitor Stand  
KeyboardPowerCaseMouse
Logitech G510 XFX pro 1250w black edition Caselabs MAGNUM M8 Case Razer Naga 
AudioAudioOther
Sony 2.1 Razer Megalodon XFX pro 1250w black edition 
CPUMotherboardGraphicsGraphics
8350 batch 1229 pgn  Asus Crosshair V Formula-Z gigabyte 7770 OC gigabyte 7770 OC 
RAMHard DriveHard DriveHard Drive
F3-2400C10D-16GTX OCZ agaility 3 120  OCZ Agility 3 120gb  Seagate 7200rpm 1tb 
Optical DriveOptical DriveCoolingCooling
Pioneer BDR-208DBK Rosewill RCR-IM5001 USB2.0 75 in 1 internal Car... Swiftech MCP-35X White Top Swiftech Quiet Power 240  
CoolingOSOSMonitor
Swiftech Apogee HD Windows 7 Windows 8 LG E2242 
MonitorKeyboardPowerCase
LG E2242 RAZER Black Lycosa Mirror Special Edition Seasonic x660 Cooler Master Storm Stryker 
Mouse
Razer Lachesis 
CPUMotherboardGraphicsRAM
FX 6100 Sabertooth 990fx R2.0 XFX 7770 Core Edition Samsung 1600 2x4 
RAMHard DriveOptical DriveCooling
Samsung 1600 2x4 Unknown as of now  Piorneer BDR-208DBK Swiftech H220  
OSMonitorKeyboardPower
Windows 8  Samsung 60" 120hz 3d LED TV Unknown Seasonic x750 
CaseMouseAudio
Cooler Master Storm Stryker Unknown Pioneer 5.1 
  hide details  
Reply
post #54313 of 68054
The VRM probably won´t burn out since the board has IRF digital controller. Gigabyte boards with IRF controller usually force the CPU to throttle when the VRM hits 120°C. If the temperature is still raising (fixed voltage used or PStates disabled) the controller will shut down the fets at 125°C.

The temperature reading under the controller info (in HWInfo) however is not the actual temperature of the mosfets. The temperature for each circuit (CPU/NB) comes from a NTC resistor placed adjacent to one of the inductors for each output. I think it is safe to say that the actual low-side fets are running at least 10°C hotter than the temperature readout indicates.

The VRM on Gigabyte 970A-UD3P or 990FXA-UD3 R5 can provide (safely):

232.0A @ 25°C
185.6A @ 50°C
134.6A @ 75°C
92.8A @ 100°C
46.4A @ 125°C
0.0A @ 150°C

On OCd FX-8K series CPU you don´t want the VRM to reach any higher than 75°C with this configuration.
post #54314 of 68054
Nah but serously no one read the damn vrm never got over 80c
Quote:
Originally Posted by The Stilt View Post

The VRM probably won´t burn out since the board has IRF digital controller. Gigabyte boards with IRF controller usually force the CPU to throttle when the VRM hits 120°C. If the temperature is still raising (fixed voltage used or PStates disabled) the controller will shut down the fets at 125°C.

The temperature reading under the controller info (in HWInfo) however is not the actual temperature of the mosfets. The temperature for each circuit (CPU/NB) comes from a NTC resistor placed adjacent to one of the inductors for each output. I think it is safe to say that the actual low-side fets are running at least 10°C hotter than the temperature readout indicates.

The VRM on Gigabyte 970A-UD3P or 990FXA-UD3 R5 can provide (safely):

232.0A @ 25°C
185.6A @ 50°C
134.6A @ 75°C
92.8A @ 100°C
46.4A @ 125°C
0.0A @ 150°C

On OCd FX-8K series CPU you don´t want the VRM to reach any higher than 75°C with this configuration.

Go says that to the stock sapphire trixx fury running at 100 celsius stock vrm with like 300w load


Vrm will fail under high temp. Current as nothing to do with it.

For the same reason you can pull 300w from a cpu on ln2


Cmon there are guy here who bench on 4 phase at 6.5ghz +

And other that run 5ghz 24/7


My vrm never got over 80


The weak point is the capacitor like i always said. They are rated at 105c 5000 hour. My hdd got 40000hour 30k hour from 1 motherboard


You make me laugh your motherboard will probably blow up well before mine.
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
post #54315 of 68054
Msi z97 gaming 7 throttling point 120c can be increased to 140 or 160c

M5a99fx pro. 140c can be increased to 160 or maybe 180 dont remember.


That was the thermal setting in the bios that no one ever understood.

Anyways how much people put 8350 on 4 phase 60$ board on neweeg and the review are still 4 star + after years of throttling



Ps

My infrared thermometer showed me it can read through 3 gpu and 2 motherboard

Yes it can read the temp of the chip the other side.


And everything is under safe temp.


The safely temp are probably more like stable voltage since higher temp increase current and reduce voltage and cause problem




An asus ASUS M5A97 LE R2.0 that my cousin own with 6 phase run at like 70-75c on the vrm stock with a fx 6300 under prime 95

A p5k se cheapo air cooled 4 phase with a q6600 i bough used was overclock for 4 years at 3ghz

Stock clock will run at 85celsius The guy did probably run it at 100celsius all it life and it looked brand new.


My gts250 Hit in front of me 135celsius on the infrared thermometer when i did a furmak run without knowing it was dusty as hell. Cleaned = 110celsius

It still going strong todays after 3000+ hour of gaming
Edited by bonami2 - 10/23/15 at 12:16am
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
post #54316 of 68054
Quote:
Originally Posted by bonami2 View Post

Nah but serously no one read the damn vrm never got over 80c
Go says that to the stock sapphire trixx fury running at 100 celsius stock vrm with like 300w load


Vrm will fail under high temp. Current as nothing to do with it.

For the same reason you can pull 300w from a cpu on ln2


Cmon there are guy here who bench on 4 phase at 6.5ghz +

And other that run 5ghz 24/7


My vrm never got over 80


The weak point is the capacitor like i always said. They are rated at 105c 5000 hour. My hdd got 40000hour 30k hour from 1 motherboard


You make me laugh your motherboard will probably blow up well before mine.

rolleyessmileyanim.gif

I rarely say this, but you have no idea what you are talking about.

Different fets have different derating curves.

The IRF6894 DirectFets used in 290/390 series and Fury cards as a low-side fet are rated for 160A @ 25°C.

160A @ 25°C
150A @ 50°C
130A @ 75°C
107A @ 100°C
75A @ 125°C
0A @ 150°C

And depending on card, there are 3 - 5 of them (225A - 375A @ 125°C).

Each of your low-side fet (uPA2724) is rated to 29A @ 25°C like I said earlier.

Capacitors being weak point my ass. If you run them at their maximum rated voltage, with extremely high ripple, frequency and in their maximum temperature, then there is a slight chance that they only last for <10K hours. Otherwise when you run the capacitors at <60% of their rated voltage (like on properly designed motherboard you do) and in <80°C temperatures, the high quality polymers will last longer than you want to keep using that hardware.
Edited by The Stilt - 10/23/15 at 12:22am
post #54317 of 68054
Quote:
Originally Posted by The Stilt View Post

rolleyessmileyanim.gif

I rarely say this, but you have no idea what you are talking about.

Different fets have different derating curves.

The IRF6894 DirectFets used in 290/390 series and Fury cards as a low-side fet are rated for 160A @ 25°C.

160A @ 25°C
150A @ 50°C
130A @ 75°C
107A @ 100°C
75A @ 125°C
0A @ 150°C

And depending on card, there are 3 - 5 of them (225A - 375A @ 125°C).

Each of your low-side fet (uPA2724) is rated to 29A @ 25°C like I said earlier.

Capacitors being weak point my ass. If you run them at their maximum rated voltage, with extremely high ripple, frequency and in their maximum temperature, then there is a slight chance that they only last for <10K hours. Otherwise when you run the capacitors at <60% of their rated voltage (like on properly designed motherboard you do) and in <80°C temperatures, the high quality polymers will last longer than you want to keep using that hardware.

Im trying to learn.. Explain the plague of sapphire 7950 7970 blow up in the mining forum if your that good rolleyes.gif

Im talking of people blowing in less than 3 month 10 to 20 gpu brand new


But explain how crappy a 4 phase without heatsink lasted 5 years + with a q6600 at 3.0ghz with temp in the 100c + under load.


Aint the best but im trying to understand those thing

headscratch.gif
Edited by bonami2 - 10/23/15 at 12:34am
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
post #54318 of 68054
Quote:
Originally Posted by bonami2 View Post

The weak point is the capacitor like i always said. They are rated at 105c 5000 hour. My hdd got 40000hour 30k hour from 1 motherboard


You make me laugh your motherboard will probably blow up well before mine.


No. Solid polymer capacitors' lifespan is calculated differently than electrolytic capacitors. This is from Nichicon (one of the highly reputable japanese brands).



Life is x10 for every 20C decreased (with an asterisk, in that, it doesn't account for premature failure during to imperfections during manufacturing).

So let's take this Nichicon at "only" 2000K (it's the capacitor brand and rating found on the Asrock 970 Extreme3 for example).

105C = 2000h
85C = 20.000h = 2.2 years
65C= 200.000h = 22 years

Given that capacitors are surface elements of the motherboard, i don't see how they will arrive even at 65C in ANY type of decently ventilated case. A human being gets 3rd degree burn after 5 seconds at 60C. So if your caps arrive at such temperatures, it's easy to know, because you will burn badly your finger if you touch them. So, for a perfectly manufacture capacitor at "merely" 2000h rating @105C, you can expect 22 years of life.

Manufacturers themselves, leave a margin of error for imperfect manufacturing. Not ALL produced capacitors will be so perfect, but most will. So setting aside casual hardware failure, which can occur in any piece of electronics, even 2000h good quality capacitors, have at their "birth" , an expectancy of 22 years. Of course, since "moar is better", motherboard manufacturers go over the top and put 10K or even 15K capacitors on some motherboard, meaning that you will be probably dead and the capacitor will still be in working order. Of course there is always the matter of quality, in the sense that one's rating may be more attendible than others (better manufacturing process). But still, we 're talking about long life.

The capacitors can still fail prematurely (***** happens), but these are "unexpected" deaths. It's not like in electrolytic era, where be it because of the famous stolen formula, be it for the simple fact that all electrolytics dry out as they are being used, it was a matter of time before you go into trouble.
Edited by Undervolter - 10/23/15 at 12:50am
Main
(16 items)
 
Dedicated Encoder
(15 items)
 
 
CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
  hide details  
Reply
Main
(16 items)
 
Dedicated Encoder
(15 items)
 
 
CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
  hide details  
Reply
post #54319 of 68054
Edit
Quote:
Originally Posted by Undervolter View Post

No. Solid polymer capacitors' lifespan is calculated differently than electrolytic capacitors. This is from Nichicon (one of the highly reputable japanese brands).



Life is x10 for every 20C decreased (with an asterisk, in that, it doesn't account for premature failure during to imperfections during manufacturing).

So let's take this Nichicon at "only" 2000K (it's the capacitor brand and rating found on the Asrock 970 Extreme3 for example).

105C = 2000h
85C = 20.000h = 2.2 years
65C= 200.000h = 22 years

Given that capacitors are surface elements of the motherboard, i don't see how they will arrive even at 65C in ANY type of decently ventilated case. A human being gets 3rd degree burn after 5 seconds at 60C. So if your caps arrive at such temperatures, it's easy to know, because you will burn badly your finger if you touch them. So, for a perfectly manufacture capacitor at "merely" 2000h rating @105C, you can expect 22 years of life.

Manufacturers themselves, leave a margin of error for imperfect manufacturing. Not ALL produced capacitors will be so perfect, but most will. So setting aside casual hardware failure, which can occur in any piece of electronics, even 2000h good quality capacitors, have at their "birth" , an expectancy of 22 years. Of course, since "moar is better", motherboard manufacturers go over the top and put 10K or even 15K capacitors on some motherboard, meaning that you will be probably dead and the capacitor will still be in working order. Of course there is always the matter of quality, in the sense that one's rating may be more attendible than others (better manufacturing process). But still, we 're talking about long life.

The capacitors can still fail prematurely (***** happens), but these are "unexpected" deaths. It's not like in electrolytic era, where be it for the famous stolen formule, be it for the simple fact that all electrolytics dry out as they are being used, it was a matter of time before you go into trouble.



Thank for this That the kind of thing i love to read biggrin.gif


I read somewhere that capacitor lose Performance over time... And read that if they can give the amperage needed the vrm can blow up. And stuff like that.


And yes i almost burned my finger touching them I do burn my finger often because i work on engine sometime so i cant says compared to normal people.

Highest reading i got on them was 80c at 100% load after 4 hour at 4.4ghz and 1.4v

Im planning to add fan and no crazy overclock for 24/7 since i want it to run 100% load so maybe 4.4 to 4.7


Im currently reading other stuff about right now to find what i missed. i can always improve my knowledge
Edited by bonami2 - 10/23/15 at 12:55am
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
Gaming PC
(18 items)
 
HTPC v2
(11 items)
 
 
CPUMotherboardGraphicsRAM
Amd Fx 8300 95w  GIGABYTE GA-78LMT V 6.0 Asus ENGTS250 Dark Knight 1gb.... it display 10... 2x2gb + 2x4gb 1333 cl9 12gb 
Hard DriveCoolingOSMonitor
128gb ssd + 500gb 5400rpm Arctic Cooling Freezer i32 Plus Windows 10 64bit Pro Wasabi Mango UHD400 4k 60hz 
PowerCaseAudio
SeaSonic S12II 620 DEEPCOOL DUKASE WHV2 White SMSL SA-50 to Fluance SX6 Bookshelf 
  hide details  
Reply
post #54320 of 68054
Quote:
Originally Posted by bonami2 View Post

Edit
Thank for this That the kind of thing i love to read biggrin.gif


I read somewhere that capacitor lose Performance over time... And read that if they can give the amperage needed the vrm can blow up. And stuff like that.


And yes i almost burned my finger touching them I do burn my finger often seen i work on engine sometime so i cant says compared to normal people.

Highest reading i got on them was 80c at 100% load after 4 hour at 4.4ghz and 1.4v

Im planning to add fan and no crazy overclock for 24/7 since i want it to run 100% load so maybe 4.4 to 4.7


Im currently reading other stuff about right now to find what i missed. i can always improve my knowledge

The electrolytics could lose some performance with time, after some electrolyte was starting to evaporate. I 've no idea how the capacitors can blow up anything...

Well, i don't know how you manage to have capacitors at 80C, but then again, i am just a conservative user at 4Ghz. Everything in my cases runs below 60C, so 80C are alien temperatures for me...

Burn from burn is also different. When i say 3rd degree burn in 5 seconds, it means you get full skin burn. Basically, all the tissue up to the fat or bone, melts. Second degree is blisters. So we 're not talking "i touched my cap and by reflex i removed my hand away". Consider that your normal body is at 37C (hands are actually a bit colder naturally). So anything above that is "hot" to the touch.

Anyway, let's take 80C and a 10.000h capacitor at 105C.

105C= 10.000h
85C = 100.000h = 11 years.
Main
(16 items)
 
Dedicated Encoder
(15 items)
 
 
CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
  hide details  
Reply
Main
(16 items)
 
Dedicated Encoder
(15 items)
 
 
CPUMotherboardGraphicsRAM
FX-8320@4Ghz Gigabyte 970 UD3P rev2.1 Gainward GTX 750Ti Corsair XMS3 1600Mhz 16GB (4x4GB) 
Hard DriveHard DriveOptical DriveOptical Drive
Crucial BX100 250GB Western Digital Green 2TB LiteOn Blu-Ray Burner IHBS 112-2 LG BH16NS55 Blu-Ray Burner 
CoolingOSMonitorKeyboard
Scythe Katana 3 Windows 7 Pro 64bit ASUS 22" VS228HR Microsoft Wired Keyboard 600 
PowerCaseMouseAudio
EVGA 430W Sharkoon VG4-V Logitech M90 Onboard 
CPUMotherboardGraphicsRAM
FX-8300 Asrock 970 Extreme3 HIS 6570 Silence Corsair XMS3 1600Mhz 8GB (2x4GB) CAS9 
Hard DriveHard DriveOptical DriveCooling
Plextor M6S 128GB Toshiba 2TB SATAIII LiteOn Blu Ray burner IHBS 112-2 Xigmatek Balder 
OSMonitorKeyboardPower
Windows 7 Pro 64bit Samsung S22B350H Microsoft Wired 600 Corsair VS350 
CaseMouseAudio
Lepa LPC 306 Logitech M90 Onboard 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › [OFFICIAL] FX-8320/FX-8350 Vishera Owners Club