Overclock.net › Forums › Intel › Intel CPUs › LLC what does it really do?
New Posts  All Forums:Forum Nav:

LLC what does it really do?

post #1 of 8
Thread Starter 
I have been trying to overclock with it and without it. I notice that all it does it raise the vcore instead of vdroop kicking in. If i have in auto let say with bios vcore at 1.50v. Cpuz report the actual voltage when idle but at full load it drops to around 1.480v. Now, when i set LLC ON with the same voltage at 1.50v, idle still the same but at full load it jumps to 1.52v. Isnt this the same has setting your voltage manually and forgetting about LLC?
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
[Intel] i7 2600k @ 4.8Ghz  [Asus] p8p67 Deluxe [Bios] 2001 [EVGA] GTX 580 SLI 950/1900/2200 1.175v [Corsair] Vengeance 8gb (2x4gb) @ 1866mhz 
Hard DriveOptical DriveCoolingOS
[Crucial] M4 256gb Raid 0 (128gb x2) [Samsung] Blu-ray  Watercool  [Win7] ultimate 64bit 
MonitorKeyboardPowerCase
[Yamakasi] 27" 2560x1440 S-ips [Logitech] iluminated wire [ENERMAX] MaxRevo 1350W [Corsair] 800D 
MouseMouse PadAudio
[CM] Storm [Steelseries] Qck+ Creative titanium HD 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
[Intel] i7 2600k @ 4.8Ghz  [Asus] p8p67 Deluxe [Bios] 2001 [EVGA] GTX 580 SLI 950/1900/2200 1.175v [Corsair] Vengeance 8gb (2x4gb) @ 1866mhz 
Hard DriveOptical DriveCoolingOS
[Crucial] M4 256gb Raid 0 (128gb x2) [Samsung] Blu-ray  Watercool  [Win7] ultimate 64bit 
MonitorKeyboardPowerCase
[Yamakasi] 27" 2560x1440 S-ips [Logitech] iluminated wire [ENERMAX] MaxRevo 1350W [Corsair] 800D 
MouseMouse PadAudio
[CM] Storm [Steelseries] Qck+ Creative titanium HD 
  hide details  
Reply
post #2 of 8
There are 9999999999 threads on this already.

As you've already realized it's a placebo effect, nothing more. No reason to have it on. Back in the day it was used to sell motherboards to people that thought vdroop was some type of problem.
Finally an update
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 7700k MSI Z270 Pro Carbon Zotac GTX1060 6gb GSkill TridentZ 16gb (3200mhz) 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 960 Evo Samsung 850 EVO 250gb WD Blue 500gb x2 RAID0 ASUS DVDRW 
CoolingOSMonitorKeyboard
Thermalright Venemous-X Windows 10 Acer H257HU 1440p Razor Blackwidow 
PowerCase
Seasonic X650 Coolermaster Storm Scout 
  hide details  
Reply
Finally an update
(14 items)
 
  
CPUMotherboardGraphicsRAM
i7 7700k MSI Z270 Pro Carbon Zotac GTX1060 6gb GSkill TridentZ 16gb (3200mhz) 
Hard DriveHard DriveHard DriveOptical Drive
Samsung 960 Evo Samsung 850 EVO 250gb WD Blue 500gb x2 RAID0 ASUS DVDRW 
CoolingOSMonitorKeyboard
Thermalright Venemous-X Windows 10 Acer H257HU 1440p Razor Blackwidow 
PowerCase
Seasonic X650 Coolermaster Storm Scout 
  hide details  
Reply
post #3 of 8
cpus have vdroop/vdrop so you can specify the max voltage via bios and know that overshoots wont take you "out of spec" from what was set in bios.

But since overclocking you are already "out of spec", having the voltage drop down is annoying and irrelevant to some.

If I need 1.34 load vcore for 4.4ghz stable, I have 2 options.

option 1) Use LLC, and I can set 1.34v core in bios. (Overshoots will be to ~1.39).

Or option 2) LLC off, and I set vcore to 1.39 in bios, and load vcore drops to 1.34. (Overshoots will still be to 1.39 as vrm circuitry is same). And higher the load, the lower it will drop, hence the unnecessary guessing game.

LLC off is annoying to me, as it is pointless, since its intended use is already circumvented by overclocking. Others it doesnt seem to annoy.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
post #4 of 8
Quote:
Originally Posted by opt33 View Post
cpus have vdroop/vdrop so you can specify the max voltage via bios and know that overshoots wont take you "out of spec" from what was set in bios.

But since overclocking you are already "out of spec", having the voltage drop down is annoying and irrelevant to some.

If I need 1.34 load vcore for 4.4ghz stable, I have 2 options.

option 1) Use LLC, and I can set 1.34v core in bios. (Overshoots will be to ~1.39).

Or option 2) LLC off, and I set vcore to 1.39 in bios, and load vcore drops to 1.34. (Overshoots will still be to 1.39 as vrm circuitry is same). And higher the load, the lower it will drop, hence the unnecessary guessing game.

LLC off is annoying to me, as it is pointless, since its intended use is already circumvented by overclocking. Others it doesnt seem to annoy.
how can something be both annoying and irrelevant to some???
    
CPUMotherboardGraphicsRAM
i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
KeyboardPowerCaseMouse
Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
Mouse Pad
nope! 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 2600k 5000mhz(so far) ASUS MAXIMUS IV EXTREME msi 6970 and 2 6950's Mushkin Enhanced Blackline 2133mhz 
Hard DriveOptical DriveOSMonitor
Force GT(os) M4 64gb(games) f3 1tb(other) Samsung Windows 7 64bit Samsung BX2450 
KeyboardPowerCaseMouse
Black widow XFX ProSeries 1050W PSU 80+Gold  Corsair 700D Deathadder 
Mouse Pad
nope! 
  hide details  
Reply
post #5 of 8
i was able to get my Q6600 on stock volts to 3.2 with LLC ON, bios 1.2750, windows 1.2730 on load.

all I know is that it decreases Vdroop, i read somewhere that it should be off when dealing with Vcores higher than 1.37v
Edited by Danker16 - 1/16/11 at 9:01am
post #6 of 8
Quote:
Originally Posted by microman View Post
how can something be both annoying and irrelevant to some???
Your post for instance...
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
post #7 of 8
Quote:
Originally Posted by opt33 View Post
cpus have vdroop/vdrop so you can specify the max voltage via bios and know that overshoots wont take you "out of spec" from what was set in bios.

But since overclocking you are already "out of spec", having the voltage drop down is annoying and irrelevant to some.

If I need 1.34 load vcore for 4.4ghz stable, I have 2 options.

option 1) Use LLC, and I can set 1.34v core in bios. (Overshoots will be to ~1.39).

Or option 2) LLC off, and I set vcore to 1.39 in bios, and load vcore drops to 1.34. (Overshoots will still be to 1.39 as vrm circuitry is same). And higher the load, the lower it will drop, hence the unnecessary guessing game.

LLC off is annoying to me, as it is pointless, since its intended use is already circumvented by overclocking. Others it doesnt seem to annoy.
This really depends on the board.

On Asus boards, LLC has 0%, 50% of rull:
0% means it lets the cpu to vdrop as it wants.
50% means that it will let the CPU to vdrop, but it will also up it back to as set in bios when needed.
Full means that it will keep the volt as set at bios, and ramp it up when its needed.

Gigabyte acts a bit different:
Standard - llc disabled.
level 1 - will set the volts to what is at bios, and let the cpu to vdrop when it feels like its ok.
level 2 - similar to full at asus, except at load it will just keep the volts up.
Main system
(16 items)
 
Editing PC
(8 items)
 
 
CPUGraphicsGraphicsRAM
E5-1680v2 AMD FirePro D700 AMD FirePro D700 64GB 1866mhz 
Hard DriveOSMonitorCase
1TB PCIE SSD OSX 10.10.x Dell U2713H Mac Pro 
  hide details  
Reply
Main system
(16 items)
 
Editing PC
(8 items)
 
 
CPUGraphicsGraphicsRAM
E5-1680v2 AMD FirePro D700 AMD FirePro D700 64GB 1866mhz 
Hard DriveOSMonitorCase
1TB PCIE SSD OSX 10.10.x Dell U2713H Mac Pro 
  hide details  
Reply
post #8 of 8
Quote:
Originally Posted by Defoler View Post
This really depends on the board.
Yep, and my GB board is different yet again, has just one setting of LLC enabled or disabled. The newer boards have more than 1 option LLC.

Everyone will have their own preference, mine is to remain as close to same load/idle as possible, and neither decrease or increase on load. But since everyone has different preferences, not surprising for newer boards to have more options.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Intel CPUs
Overclock.net › Forums › Intel › Intel CPUs › LLC what does it really do?