Overclock.net › Forums › Intel › Intel CPUs › sandybridge take note
New Posts  All Forums:Forum Nav:

sandybridge take note - Page 13  

post #121 of 127
Quote:
Originally Posted by eGGe View Post
According to a ASUS guy, who shows in this video how to OC on ASUS boards, 1.4 vcore is fine. He's OCing the 2600K to 4.8 Ghz, so if he does this to show how to OC, it is a pretty good sign that 1.4 vcore is safe. Why would they show OCing with a too high vcore, that would damage ur CPU?

http://www.youtube.com/watch?v=3vBN-cBPs98

What do u guys think of this?
I like Asus, so no disrepect intended.
But I would guess that he is a demo guy who gets more info from this forum and others than from a definitive conversation with people in the know from Intel.

You ask: Why would he say 1.4 if it could damage a chip? Because that is what he believes, but that doesn't mean it is true.

Besides, you can get to 4.8 at around 1.35.
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k Asus Pro Sapphire 6970 Corsair 4x4 
Hard DriveOSPowerMouse Pad
corsair 300 win 7 x64 None My desk 
  hide details  
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
i7 2600k Asus Pro Sapphire 6970 Corsair 4x4 
Hard DriveOSPowerMouse Pad
corsair 300 win 7 x64 None My desk 
  hide details  
post #122 of 127
Quote:
Originally Posted by ugotd8 View Post
So, how soon will this chip be dead ?

4.7 at 1.37V? Makes my E8500 look like a wimp.

Isn't it like 50% of chips can do 4.7-4.8 at those volts? God I want to upgrade to Sandy Bridge so bad right now...
Sinking Box
(14 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 2500k 4.8Ghz 1.37v ASRock P67 Extreme4 Gen3 ASUS HD5850 955/1250 8GB G.Skill Snipers 1600Mhz 
Hard DriveCoolingOSMonitor
2x Western Digital 640GB Caviar Blacks RAID 0 XSPC Rasa + RX360 Windows 7 Ultimate 64 Bit Sharp 32" 1080p LCD HDTV 
KeyboardPowerCaseMouse
Logitech Illuminated Keyboard Corsair HX620 Corsair Obsidian 700D Logitech G3 Mouse 
  hide details  
Sinking Box
(14 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 2500k 4.8Ghz 1.37v ASRock P67 Extreme4 Gen3 ASUS HD5850 955/1250 8GB G.Skill Snipers 1600Mhz 
Hard DriveCoolingOSMonitor
2x Western Digital 640GB Caviar Blacks RAID 0 XSPC Rasa + RX360 Windows 7 Ultimate 64 Bit Sharp 32" 1080p LCD HDTV 
KeyboardPowerCaseMouse
Logitech Illuminated Keyboard Corsair HX620 Corsair Obsidian 700D Logitech G3 Mouse 
  hide details  
post #123 of 127
Quote:
Originally Posted by wumpus View Post
1.65v was the older P55/X58 standard, and you cant expect RAM companies to be able to make products on a dime either.
Problem is oversupply. DDR3 price have been collapsing because of that. Vendors are stuck with old inventory and are now in a rush to clear it out before Gen 2 CPUs become popular. Corsair has some great rebates with Frys right now and I think most of the RAM is the 1.65V rated stuff which they know is reaching its EOL for the enthusiast.

For most regular use, the 1.65V may still work OK. The problems come when the CPU is being stressed by the OC and then it has this higher voltage at the IOs to make things more fragile.
My First Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
2600K P8P67 Pro 2x HD5670 GSKill 2x4GB 7-7-7-21@667MHz 
MonitorPowerCase
Six Monitor Grid Seasonic S12D Lian Li PC-A77FB 
  hide details  
My First Build
(13 items)
 
  
CPUMotherboardGraphicsRAM
2600K P8P67 Pro 2x HD5670 GSKill 2x4GB 7-7-7-21@667MHz 
MonitorPowerCase
Six Monitor Grid Seasonic S12D Lian Li PC-A77FB 
  hide details  
post #124 of 127
And what about DRAM voltage guys? I have Kingston 1800Mhz CL9 LowVoltage 1.35V and I run at 1600Mhz CL9 1.35V, I think thats okay, or should I push my DRAM voltage up to 1.5V? I am at 4.5Ghz stable now, just asking anyway...
Golem
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-3770k@4.5Ghz Asus Maximus V Formula GeForce GTX 1080 Ti GAMING X 11G 16GB Kingston HyperX DDR3 
Hard DriveHard DriveCoolingCooling
256GB Samsung 840 Pro 2TB Western Digital Black Noctua NH-D14 NOCTUA NF-S12B FLX 
CoolingOSPowerCase
2x BITFENIX Spectre Windows 7 Enterprise x64 Corsair AX850W Corsair Obsidian Series 650D 
  hide details  
Golem
(12 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7-3770k@4.5Ghz Asus Maximus V Formula GeForce GTX 1080 Ti GAMING X 11G 16GB Kingston HyperX DDR3 
Hard DriveHard DriveCoolingCooling
256GB Samsung 840 Pro 2TB Western Digital Black Noctua NH-D14 NOCTUA NF-S12B FLX 
CoolingOSPowerCase
2x BITFENIX Spectre Windows 7 Enterprise x64 Corsair AX850W Corsair Obsidian Series 650D 
  hide details  
post #125 of 127
So 82-86C is too hot for 5GHz at 1.425v during a prime test? Is that okay just for a little bit of benching? And can anyone give me their usual prime temps at 1.3v? Thanks
post #126 of 127
Quote:
Originally Posted by wumpus View Post

as temp drops, more voltage is safe.
this is why at -70C you can run 1.7v and have it run fine for hours and hours with zero degredation.
as the chip gets hotter, the resistance becomes greater, and with lots of vcore at high temps, what kills a chip is electron migration, also known as high energy electrons jumping traces to lower energy traces, killing your chip.
so in theory, if you keep your chip at a constant 20C, ahigher voltage will be safe witout degradation to the silicon than if the chip were loading at 80 or 90C.
lets not also forget, that intel has a linear equation in their spec sheets that shows how as amperage increases, "safe" vcore decreases. its linear so shouldnt be too hard to figure out given the equation.
its all relative my friends.

Thanks wumpus. I never knew that. I now have a better understanding of OC reference ranges. +1!
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Radeon HD4670 Samsung MV-3V2G3D/US low profile  
Hard DriveHard DriveHard DriveOptical Drive
Samsung HD503HI  Samsung 830 Series SSD 128 GB Samsung HD155UI Lite-on IHOS-104 Blu Ray 
CoolingOSMonitorKeyboard
Thermalright Silver Arrow Win 7 Professional HP LP2065 20" LCD Cherry MX Board 3.0 
PowerCaseAudio
Antec Earthwatts EA380D Fractal Design Arc Midi Klipsch THX 
  hide details  
My System
(17 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500k Asus P8Z68-V Radeon HD4670 Samsung MV-3V2G3D/US low profile  
Hard DriveHard DriveHard DriveOptical Drive
Samsung HD503HI  Samsung 830 Series SSD 128 GB Samsung HD155UI Lite-on IHOS-104 Blu Ray 
CoolingOSMonitorKeyboard
Thermalright Silver Arrow Win 7 Professional HP LP2065 20" LCD Cherry MX Board 3.0 
PowerCaseAudio
Antec Earthwatts EA380D Fractal Design Arc Midi Klipsch THX 
  hide details  
post #127 of 127
Use the search button to find a bit more up-to-date info regarding safe voltage's for Sandy Bridge CPU's, however, be wary that nothing to this date has been confirmed by Intel. ~29th January 2012~.
it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
  hide details  
it looks alive
(17 items)
 
Sandy Transformed
(69 photos)
 
CPUMotherboardGraphicsRAM
i5 2500K [5ghz 1.44v 24/7] Asus Maximus IV Extreme SLI GTX 460 @ 920/1840/4100 [1.11v] 4GB Dominator GT @ 2133mhz CL8 [1.65v] 
Hard DriveHard DriveCoolingOS
Intel X25-M G2 80GB 3x Samsung F3 500GB RAID 0 EK Supreme HF Full Copper Windows 7 Ultimate 64bit 
MonitorPowerCaseAudio
LG42SL9500 42" 1080p [Surround Soon] XFX XXX Edition 650w Xigmatec Elysium JVC HA-RX700 [foam mod] 
  hide details  
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
This thread is locked  
Overclock.net › Forums › Intel › Intel CPUs › sandybridge take note