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CPU "throttling" because of changing vCore?

post #1 of 6
Thread Starter 
It seems that when the load on my cpu, which is at stock, changes a weird sound comes from my pc. i noticed that because of the power saving features and the changing vcore and turbo, sometimes my cpu runs at 3.7 turbo but volts are only 1V when it normally uses 1.31V, and the sound only happens when this is the case.
Just wondering what your thoughts are about this, could this be harming my cpu? Also are there any recommendations you would like to make?
thanks
post #2 of 6
What are your settings in your UEFI? It could be your motherboard throttling due to it hitting an arbitrary wattage/amperage limit.

Usually there is something about CPU wattage / amperage limits in the UEFI. However, on my ASRock motherboard it was throttling my multiplier and not the voltage.

What are your temps like under load?


EDIT: Are you having any instability when this voltage issue happens? Does it drop down from the x37 multiplier when this is happening?
Edited by AtomicFrost - 10/31/11 at 1:03pm
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ColdCut
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post #3 of 6
Thread Starter 
my temps barely go over 45-50c
everything in the bios is on auto except the ram timings
im not sure if throttling is the correct term, which is why i put it in "..."
my pc marks like a weird, loud electrostaticcy sound which sounds awful, gets me worried

its because its running at the right, multi but volts are wayyy too low
post #4 of 6
Quote:
Originally Posted by A14M3D View Post
my temps barely go over 45-50c
everything in the bios is on auto except the ram timings
im not sure if throttling is the correct term, which is why i put it in "..."
my pc marks like a weird, loud electrostaticcy sound which sounds awful, gets me worried

its because its running at the right, multi but volts are wayyy too low
Hmmmm. The fact that it's making noise doesn't sound good. It could be a VRM/Choke that is failing on your motherboard. That would explain the lower voltage being given to the CPU. Have you tried running a Prime95 Blend to test stability when this voltage issue is happening?

What are your 12v, 5v, and 3.3v voltages at? Do you have a digital multi-meter? Also, you wouldn't happen to have an inferred thermometer would you?
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ColdCut
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post #5 of 6
Well, the noise is probably coming from the chokes (things that smooth the power out to feed to the cpu) around the CPU (check link in sig if you want to know more about this noise). The fact that they make this noise is not an issue, but it's unusual that you said they only make this noise when the core voltage drops to 1v

Does it run stress tests ok?
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CPUMotherboardGraphicsRAM
Intel 2500k 4.7GHz  Asus P8P67 Pro(B3) 2 x Club3D 280X 3GB 16GB g.skill 1600MHz C9 
Hard DriveHard DriveHard DriveHard Drive
Samsung 840 Pro 256GB 4 x 2TB Barracudas in RAID10 2 x WD Blue 1TB RAID0 2 x 3TB Seagate Barracuda 
Hard DriveHard DriveOptical DriveCooling
8 x 146GB HP 10k SAS - various RAID levels RAID Controller LSI 9260-8i 512MB LiteOn IHAS124 Noctua NH-D15 
OSMonitorMonitorMonitor
8.1 Enterprise Acer GD245HQ (120hz) LG W2420P LG IPS231P 
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HP ZR24w LG 32LH3000 (w/IPS) Razer Blackwidow Antec TruePower New 750W 
CaseMouseAudioAudio
Corsair 750D Modified original G5 Asus Xonar PCIe Sennheiser HD595 
AudioAudioAudioAudio
Tannoy Mercury 5 NAD C165BEE Bowers & Wilkins 683 Cambridge Audio DACMagic+ 
CPUCPUMotherboardRAM
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OSPowerCase
Windows Hyper-V Server 2012 R2 2 x LiteION 750W 80PLUS Platinum RD650 24x2.5" chassis 
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post #6 of 6
Thread Starter 
yh ive stressed it in the past at stock and was fine

i noticed it when i did a 4.2 oc with SVID, so auto and it was feeding 1.28v under load, 21 hours of prime ran smooth. but when it came to gaming and daily use when loads change all the time and the volts, the noise started happening making me scared, which is why its at stock but does same thing at times, especially when gaming and going into an out of games and stuff
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