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can I lower my 2500k 4.2ghz vcore (1.304v)?

post #1 of 3
Thread Starter 
Hey everyone, I'm trying to lower my vcore as much as possible while keeping 4.2GHz, my setup is as follows:
i5 2500k (4.2GHz - 1.304v)
Asus P8Z77-I Deluxe/WD
silverstone sfx 450W (ST45SF-G)
R9 280x

CPU runs ~72c during intense gaming, most games it stays low-mid 60s tho. GPU always runs about 10c hotter but that's irrelevant I guess. I know 72c is still a safe temperature but if possible I'd like to lower it, my whole case gets quite hot after gaming and quickly heats up my already fairly hot room (especially now during summer).

At the moment i've got an offset of -0.010v, giving a vcore of 1.304v. Firstly, does 1.304v seem a bit high for 4.2GHz? And secondly, I always thought that if I use a negative offset, it will lower the vcore below stock? Is that not what happens? I've set it by as much (little?) as -0.035v but it still shows 1.304 vcore under load, so I don't know if it just won't accept any less voltage or if I'm doing something wrong? Increasing offset to +0.005v gives 1.332vcore.

Here are my bios settings:
Asus multicore enhancement - enabled
PLL overvoltage - disabled
EPU power saving - disabled
enhanced speedstep technology - enabled
long duration power limit - 255
long duration maintained - auto
short duration power limit - 255
primary plane current limit - 1023.875
secondary plane current limit - 1023.875
load line calibration - high (3)
voltage frequency - auto
VRM spread spectrum - disabled
power phase control - standard
power duty control - T.Probe
current capability - 120%
power response control - medium
cpu voltage - offset
offset sign mode - ( - )
offset voltage - 0.010
Spread spectrum - disabled
virtualization technology - enabled
CPU C1E - enabled
CPU c3 report - disabled
CPU c6 report - disabled
Package C state support - disabled

Everything else like DRAM voltage/timing, memory frequency, PCH and VCCSA voltages are on auto (default).

I'm a bit confused if you haven't noticed tongue.gif Am I even on the right track? Thanks in advanced
    
CPUMotherboardGraphicsRAM
i5 2500k  Asus P8z77-I Deluxe/wd EVGA GTX 770 4GB SC G.Skill 8GB 
Hard DriveHard DriveCoolingOS
Crucual M500 120GB Crucial MX100 250GB ex120+st30 280 w/ noctua LNA Windows 8.1 Pro 
MonitorKeyboardPowerCase
Dell U2713hm  Microsoft POS SilverStone SFX 450w-G Custom 
MouseAudio
TT eSports Black 4000DPI Audio-technica ATH-A900X 
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CPUMotherboardGraphicsRAM
i5 2500k  Asus P8z77-I Deluxe/wd EVGA GTX 770 4GB SC G.Skill 8GB 
Hard DriveHard DriveCoolingOS
Crucual M500 120GB Crucial MX100 250GB ex120+st30 280 w/ noctua LNA Windows 8.1 Pro 
MonitorKeyboardPowerCase
Dell U2713hm  Microsoft POS SilverStone SFX 450w-G Custom 
MouseAudio
TT eSports Black 4000DPI Audio-technica ATH-A900X 
  hide details  
Reply
post #2 of 3
got i2500k and as most people said , with a limit of 43x multiplier there's no need to play with vcore or other mobo setting imho , just set the multiplier on ( especially with 4,2ghz... ) got mine at 4.1 with only multiplier at 41x , try to reset mobo setting and increase only multiplier.
post #3 of 3
Quote:
Originally Posted by OverNooby View Post

got i2500k and as most people said , with a limit of 43x multiplier there's no need to play with vcore or other mobo setting imho , just set the multiplier on ( especially with 4,2ghz... ) got mine at 4.1 with only multiplier at 41x , try to reset mobo setting and increase only multiplier.

You should control your voltages manually. Intel boards set wild voltage swings on automatic.
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