Overclock.net › Forums › Intel › Intel CPUs › 4.8GHz @ 1.43v for 24/7 use, should I?
New Posts  All Forums:Forum Nav:

4.8GHz @ 1.43v for 24/7 use, should I? - Page 2

post #11 of 19
I have a similar problem. 5GHz with 1.48 vcore on air(noctua nh-d14). I have C1E and speedstep enabled, so under load i have 5GHz and 1.48vcore with hottest core 69c. At idle, i have 1600GHz, 1.120 vcore, hottest core 30c. My PC is only 2-3h per day on moderate load(FSX). If i want my CPU for more than 1 year, Is that to much vcore?
post #12 of 19
I ran a 2500k at 4.8ghz 1.40v for 6 months and had no problems at all. DO EET!
Easy V3
(17 items)
 
12 Pack
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-4820k Asus Rampage IV BE evga 1080ti FE w/ hybrid kit 16 GB G.Skill Trident X 2400mhz  
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 120gb Samsung 840 EVO 1TB Samsung Blu-ray Corsair H110 
OSMonitorKeyboardPower
windows 10 Asus PG278Q Ducky Shine 3 - blue led - cherry mx browns Seasonic Platinum-1000 
CaseMouseMouse PadAudio
Dimastech Easy V3 Mionix NAOS 8200 Mionix Ensis 320 titanium HD  
Other
audio technica ATH-A900X 
  hide details  
Reply
Easy V3
(17 items)
 
12 Pack
(15 items)
 
 
CPUMotherboardGraphicsRAM
i7-4820k Asus Rampage IV BE evga 1080ti FE w/ hybrid kit 16 GB G.Skill Trident X 2400mhz  
Hard DriveHard DriveOptical DriveCooling
Samsung 840 EVO 120gb Samsung 840 EVO 1TB Samsung Blu-ray Corsair H110 
OSMonitorKeyboardPower
windows 10 Asus PG278Q Ducky Shine 3 - blue led - cherry mx browns Seasonic Platinum-1000 
CaseMouseMouse PadAudio
Dimastech Easy V3 Mionix NAOS 8200 Mionix Ensis 320 titanium HD  
Other
audio technica ATH-A900X 
  hide details  
Reply
post #13 of 19
Absolutely you should do it..temps allowing biggrin.gif
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
 
Thuban Powah!
(14 items)
 
 
CPUMotherboardGraphicsRAM
Xeon X5650 Asus P6X58D-E Sapphire HD 7950 G.Skill Trident-X 2600 CL10 
Hard DriveCoolingPowerCase
Samsung 840 pro Bong cooler / RASA waterblock Rosewill Capstone Gold 750 None 
MouseMouse PadAudio
cheap! Newegg box panel ibeats with onboard. 
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1075T w/2 cores locked @ 4.2+ M4a89GTD-Pro XFX Radeon HD 5870 8gb Samsung ddr3 1600 11-11-11-28@ 8-8-8-24 
Hard DriveHard DriveOptical DriveCooling
OCZ Agility2 40gb WD Blue 500GB Lite-On RASA waterblock 
OSMonitorKeyboardPower
Windows & Linux Samsung 1080p 2 ms Dell Thermaltake TR2-800 
CaseMouse
Cooler Master Elite 330 (was) cheap 
  hide details  
Reply
post #14 of 19
Quote:
Originally Posted by $ilent View Post

Ran my 2700k at 1.41v for 4.9ghz after a 12 hour prime95 pass. It ran folding@home (100% full load) for id say 4-6 months, temps under 80C most of the time. I tried to run a prime95 pass few nights ago at 1.41v for 4.9ghz, it barely managed an hour.
So read into that what you will, I no longer recommend people to run high voltages if possible.

I saw your recommendation on another thread, thank you so much. But i'm thinking about one thing - your PC was on 100% load most of time, 4-6 months, and temps under 80c. So - everyday usage above 70c, which is more dangerous than high vcore in my opinion(high vcore, but below apsolute max of 1.52).
I saw that MadHappy want's to run about 6h/day at this settings. I wan't only 2-3h/day, max 5-6h in weekends at 5GHz with 1.48 vcore and temps below 70c(hottest core was 69c). So i was thinking, maybe vcore isn't played a most important role in your CPU degradation, but high 24/7 temperatures.
I'm not saying you're wrong about voltages, just thinking about other possible reasons.

MadHappy, you should read this:
http://www.overclock.net/t/1159500/1-45v-core-voltage-is-safe-for-i7-2600k-2700k

And i saw somewhere(i can't find source right now but it's some intel engineer statement)that most important things about voltages is that you should never, but absolutely never, even for a moment - not go above absolute max intel vcore of 1.52. If you can stay below, you are safe. If you go above, even for a one milisecond - you can expect CPU degradation - not in that moment, maybe in 6, 8, 10 months, 1 year etc. I'll try to find original thread and post it here later.

Maybe $ilent did by accident something like this before, and this is the reason for CPU degradation, not 1.41 vcore or temps. Who knows? I did that by accident, i didn't know my mobo so good at that time smile.gif

I was thinking about it, i'll try to run @5GHz and 1.48vcore and max temps under 70c, somebody most sacrifice in the name of science smile.gif

And if something happens, i will report to you all(I don't know how much it would be important because I was once above 1.52 vcore)
and i'll be more careful with my next 2700k - i'll buy one for backup becouse of this sad news: http://www.xbitlabs.com/news/cpu/display/20120925182831_Intel_Discontinues_Core_i_Sandy_Bridge_Microprocessors.html
post #15 of 19
Here is the link: http://www.overclock.net/t/476469/the-truth-about-temperatures-and-voltages

And some quotes:

"At conditions outside functional operation condition limits, but within absolute
maximum and minimum ratings, neither functionality nor long-term reliability can be
expected. If a device is returned to conditions within functional operation limits after
having been subjected to conditions outside these limits, but within the absolute
maximum and minimum ratings, the device may be functional, but with its lifetime
degraded depending on exposure to conditions exceeding the functional operation
condition limits."

"At conditions exceeding absolute maximum and minimum ratings, neither functionality
nor long-term reliability can be expected. Moreover, if a device is subjected to these
conditions for any length of time then, when returned to conditions within the
functional operating condition limits, it will either not function, or its reliability will be
severely degraded."

"For functional operation, all processor electrical, signal quality, mechanical and thermal
specifications must be satisfied."

"If you run at or below the Absolute Maximum Voltages for your CPU, you should never experience degredation or lose of life on your CPU. Overclocking will not decrease the lifetime of your CPU if and only if certain criteria are met. "

"According to Intel, "Within functional operation limits, functionality and long-term reliability can be expected." This says nothing about running over stock voltages or stock clocks. Only that you need to be stable, cool, below the maximum voltage, and mechanically sound at any speed."

"Interestingly enough, criteria 2 (Signal Quality) alludes to the idea that unstable overclocks cause CPU degredation."
post #16 of 19
I used to always run my 2500k @ 4.8Ghz w/ 1.45v always ran perfect, as long as you have your o/c settings dialed in correctly you should be good to go. You should use offset voltage rather than manual voltage and keep power saving features on. I can't say what will happen over the extreme long term (i.e. 3 - 5 years as I only ran mine for about 18 months before upgrading) but I don't think most people worry too much about that on OCN smile.gif
The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
OSMonitor
Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
  hide details  
Reply
The Laptop
(6 items)
 
  
CPUGraphicsRAMHard Drive
Intel i7 2860QM AMD Radeon HD 6770M Corsair Vengence 1600MHz Samsung 840 Pro 256GB 
OSMonitor
Mac OS X 10.8 1680 x 1050 anti-glare high resolution  
  hide details  
Reply
post #17 of 19
I use offset mode, thanks. 2 years on this settings would be like a dream for me smile.gif But you are perfectly fit in that retailer's statement about max 1.45 vcore for 24/7 usage, i am a little bit above that smile.gif
post #18 of 19
If the chip will hold up why not?
It depends on how long you want the CPU to last.

At 4.4Ghz your gaming/PC performance would be the same, you could just run it there 24/7.
buildX
(16 items)
 
X3Elite (HTPC)
(14 items)
 
Dell XPS L702X
(11 items)
 
CPUMotherboardGraphicsRAM
Core i7 930 @ 4.0GHz (24/7) HT/on  Asus P6TD Deluxe Gigabyte 2GB GTX 670 Windforce3X OC  6GB OCZ Gold 1600 (tri-channel) 
Hard DriveHard DriveCoolingOS
Samsung 850 EVO 250GB Seagate Barracuda 500GB 7.2K 16MB Cache Prolimatech Megahalem Rev.B (Push/Pull) Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Acer X233H Razer BlackWidow Ultimate  OCZ ModXStream Pro 600W XClio Windtunnel 
MouseMouse Pad
Logitech G502 Proteus Core Tunable  Razer Goliathus 444mm x 355mm - Speed Edition ... 
CPUMotherboardGraphicsRAM
AMD Phenom II 720 X3 BE @ 3.2GHz 24/7 MSi 770-G45 Sapphire Radeon HD 6870  8GB GSkill RipJaw 1333Mhz  
Hard DriveOptical DriveOSMonitor
1TB Samsung F3  DVD+-RW  Windows 7 Home Premium 64bit 60" LG 60PA5500 Plasma 
MonitorPowerCase
Acer X1373WH Projector Corsair CX500 Cooler Master 430 
CPUGraphicsGraphicsRAM
i5-2430M Intel HD Graphics  Nvidia 1GB GT 550M (GF116) w/Optimus|DX11|144 ... 6GB DDR3  
Hard DriveHard DriveOSMonitor
120GB PNY 1311 SSD 500GB 7.2K RPM Windows7 Home Premium 64 17.3" WLED TL 1600 X 900 with 2.0MP HD webcam 
KeyboardCaseAudio
Backlit Keyboard Elemental Silver Aluminum JBL 2.1 W/ Built-in Subwoofer 
  hide details  
Reply
buildX
(16 items)
 
X3Elite (HTPC)
(14 items)
 
Dell XPS L702X
(11 items)
 
CPUMotherboardGraphicsRAM
Core i7 930 @ 4.0GHz (24/7) HT/on  Asus P6TD Deluxe Gigabyte 2GB GTX 670 Windforce3X OC  6GB OCZ Gold 1600 (tri-channel) 
Hard DriveHard DriveCoolingOS
Samsung 850 EVO 250GB Seagate Barracuda 500GB 7.2K 16MB Cache Prolimatech Megahalem Rev.B (Push/Pull) Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Acer X233H Razer BlackWidow Ultimate  OCZ ModXStream Pro 600W XClio Windtunnel 
MouseMouse Pad
Logitech G502 Proteus Core Tunable  Razer Goliathus 444mm x 355mm - Speed Edition ... 
CPUMotherboardGraphicsRAM
AMD Phenom II 720 X3 BE @ 3.2GHz 24/7 MSi 770-G45 Sapphire Radeon HD 6870  8GB GSkill RipJaw 1333Mhz  
Hard DriveOptical DriveOSMonitor
1TB Samsung F3  DVD+-RW  Windows 7 Home Premium 64bit 60" LG 60PA5500 Plasma 
MonitorPowerCase
Acer X1373WH Projector Corsair CX500 Cooler Master 430 
CPUGraphicsGraphicsRAM
i5-2430M Intel HD Graphics  Nvidia 1GB GT 550M (GF116) w/Optimus|DX11|144 ... 6GB DDR3  
Hard DriveHard DriveOSMonitor
120GB PNY 1311 SSD 500GB 7.2K RPM Windows7 Home Premium 64 17.3" WLED TL 1600 X 900 with 2.0MP HD webcam 
KeyboardCaseAudio
Backlit Keyboard Elemental Silver Aluminum JBL 2.1 W/ Built-in Subwoofer 
  hide details  
Reply
post #19 of 19
Quote:
Originally Posted by amstech View Post

If the chip will hold up why not?
It depends on how long you want the CPU to last.
At 4.4Ghz your gaming/PC performance would be the same, you could just run it there 24/7.

My gaming performance will not be the same at 4.4GHz, i use PC for Flight Simulator X, no other games. But FSX is the only one that will run significantly better with each higher GHz. 4.4GHz vs 5GHz performance in fsx is to different. Even 5GHz vs 4.9 is a way better. that's why I want 5GHz
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › 4.8GHz @ 1.43v for 24/7 use, should I?