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4770k Voltages

post #1 of 4
Thread Starter 
Slightly different question concerning voltages with these chips.

First of all, basic info on my system...

I have my CPU clock and cache set to 4Ghz, RAM at XMP profile of 2133 9-11-11, and everything else as standard atm. I have enabled C states, VCore and Mhz both drop at idle as expected.

So far, VCore is set to 1.088 Maximum, RAM voltage at 1.58v.



So, instead of overclocking the CPU, I am more trying to make it as 'efficient' as possible, by lowering the voltages as much as I can. I don't seem to be able to reduce the vcore more than this without BSODs at the moment.


My question then, is what voltages to look at next to reduce power consumption / heat, where possible? I wish to keep the CPU and RAM speeds as they are, but make sure the motherboard is feeding as little power as necessary to the components.

I have just now started lowering the 'Eventual CPU Input Voltage', currently it is sitting with a max of 1.680v (down from the 'auto' of 1.770). Any advice on where to go next, and what some standard 'minimum' voltage targets may be? I can find safe maximums for such things, but no one seems to say what the lowest voltages the chips can handle seem to be...
TheCrimsonKing
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4770k (Delid) Asus Maximus VI Gene Asus GTX 780 Corsair Vengeance Pro 2133 9-11-11 
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TheCrimsonKing
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post #2 of 4
To make the CPU as efficient as possible, whilst keeping 100% stability, set the BIOS to stock and enable XMP profile for the RAM.
Don't undervolt the CPU. Why? Because the power saving features will significantly undervolt and underclock the CPU when the CPU is not being utilized much.
X79-GCN
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X79-GCN
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Samsung 840 Pro 120GB EK Supremacy (CPU) NF F12's P/P (360 Rad)  NF A14's (420 Rad)  
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XSPC Chrome Compression Fittings EK RES X3 150 Primochill PremoFlex Advanced LRT Clear 1/2 ID EK-FC (R9 290X) 
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EK D5 Vario Top-X  Phobya G-Changer V2 360mm Phobya G-Changer V2 420mm Win 10 x64 Pro 
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post #3 of 4
Thread Starter 
Well that just isn't the case, though.

Setting the BIOS to stock feeds the CPU a default vcore of around 1.28 maximum, a whopping 0.2 volts more than I am happily running it with now. Why would I want to give the thing more current and temperature than it needs...???

And as for undervolting, again, no. With the BIOS on default, the motherboard does not reduce the vcore or the multiplier of the chip. It runs at a constant 4,000mhz 1.28v.




I think you just missed the question I am asking. I already know I want to take the volts as low as I possibly can and keep the 4ghz clock stable. I just wonder if anyone has any advice with regards to what voltages make the biggest 'difference' to temp/power consumption, and what sort of values I will be looking at for minimums.
TheCrimsonKing
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TheCrimsonKing
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post #4 of 4
Ahhh what are those features called? C3/C7 states? I don't remember.. But try to enable those? Is it "Manually" overclocked by a computer shop or something? Cause my friend ordered a "Manual" overclock on his machine he just got and it was just cranked up on the multiplier and then his power save features was disabled.. And everything on Auto.. Manual overclock my .... he actually paid extra too..
Quantum
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Quantum
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[Intel] Core I7-4770K [Asus] Z97-A [Asus] GeForce GTX 770 DC2 [Asus] GeForce GTX 660 DC2 PhysX 
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[Kingston] HyperX Fury Black 16GB [Samsung] 850 EVO-Series 250GB [Western Digital] Caviar Blue 640GB [Western Digital] Caviar Blue 640GB 
Hard DriveOptical DriveCoolingOS
[Western Digital] Caviar Green 1TB Something.. [Noctua] NH-D15 3x 140mm [Microsoft] Windows 10 
MonitorMonitorMonitorKeyboard
[AOC] 24" 2434PW [Acer] 19" AL1916W [Samsung] 40" ES6545 [Logitech] Orion Spark G910 
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[Super Flower] Leadex Gold 750W [Phanteks] Enthoo Pro [Logitech] MX Master [Turtle Beach] Drift Wide 900x300mm 
AudioAudioOther
[Roccat] Kave XTD Digital 5:1 [Creative] GigaWorks T3 [Logitech] G27 
CPUMotherboardGraphicsRAM
[Intel] I7-4770K Processor [GigaByte] GA-Z87P-D3 [Asus] 660GTX-DC2 [Corsair] Vengeance 2133MHz 
Hard DriveHard DriveOptical DriveCooling
[Western Digital] VelociRaptor WD1500HLFS [Western Digital] Who cares it's an optical drive. [Thermaltake] NiC F3 
OSMonitorMonitorKeyboard
[Microsoft] Windows 7 Home Premium [AOC] 2434 [Samsung] UE40ES6545 [Logitech] G110 
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