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i5-2500k Sandy Bridge CPU Temperatures / Voltage Question (with pictures)

post #1 of 5
Thread Starter 
Hello, I'm a new member to this forum. This will be my first post. I just want to tell you about myself in short: I'm a 25 year old competitive gamer and I was born deaf and currently wearing my hearing aids to help me hear just about everything. wink.gif

My computer specs:

Case: CoolerMaster HAF 932 Advanced
Power Supply: XFX 550W
OS: Windows 7 Ultimate 64Bit
Motherboard: BioStar TZ68K+
CPU: Intel Core i5-2500k 3.3GHz overclocked to 4.2GHz
Heatsink: CoolerMaster Hyper 212 Evo
Memory: G.SKILL Ripjaws X Series 8GB
Hard Drive: Mushkin 120GB SSD
Video Card: Gigabyte GeForce GTX 560 Ti 1GB

I built this computer myself back in December 2012. I didn't overclock my CPU because I was afraid. Three or four months later, I finally overcame the fear of overclocking and went ahead from 3.3GHz to 4.4GHz with no change to voltage (was already set to auto). However, with 4.4GHz, I had been getting random BSODs which varied from 15 mins to 8 hours so I lowered the CPU ratio by .1 every time (4.3GHz and then 4.2GHz). I've not gotten a random BSOD with CPU at 4.2GHz ever since.

As of right now, I play Counter-Strike: Global Offensive which is CPU-intensive game. I'm using this program called Open Hardware Monitor which tells me the temperatures of my CPU. I'm currently at 49*C to 52*C when I'm not playing any game. When I start playing CSGO, my CPU temps were reading from 70*C to 80*C. So, I've read online somewhere that I should be worried when my CPU hits 85*C or higher. I'm still not sure about that.

Here are the BIOS settings that I took pictures of:

http://www.picsend.net/images/468804IMG_017.JPG -- CPU Ratio
http://www.picsend.net/images/326648IMG_017.JPG -- RAM Timings
http://www.picsend.net/images/364832IMG_017.JPG -- Voltage settings (never touched)

CPU-Z Screenshot:

http://www.picsend.net/images/874541cpu.png

I've read online somewhere that I should have EIST and C1E disabled for overclocking.

So, my question is...since I'm hitting 70-80*C temperature when playing CSGO, should I be worried? Am I supposed to change the voltage? If so, to what value?

Thanks for reading!
Edited by drakky - 10/27/13 at 11:11am
post #2 of 5
Fistly, welcome to OCN! biggrin.gif

Your temps do seem quite high for what you're doing. Typically, on the desktop most SB processors will sit around 30°C (and this is assuming you have EIST enabled). If you've turned that off on your machine, that might explain the higher temps. However, in gaming, 70-80°C is quite unusual, IMO. This isn't high enough to damage your CPU or anything, but I would think there could be something wrong with the mount on the heat sink. Check that over - make sure you haven't used too much TIM. Make sure the bracket is secure...once it's tightened, the heat sink shouldn't be able to move around. It should be a tight fit to the CPU.

Regarding your CPU voltage, have you tested your overclock with something like Prime95 to check for stability? If you're getting BSOD's and crashes, your overclock is not stable. So you might have to increase the voltage a bit more to get proper stability. How much you need is different with every CPU, so there's no easy way to tell how much you need until you test it.

It sounds like you're pretty new to the overclocking thing. Have you read any of the guides here? This would be a good one start with. Take a look and post back with any questions you have. smile.gif
post #3 of 5
You should have speedstep and C1e enabled otherwise you multi and voltage will not decrease at idle.

It's never recommended to overclock with your vcore on auto, you always want your voltage set to a specific value.I would also switch to offset voltage (+0.005) instead but at a minimum use fixed voltage.

If you use fixed voltage then speedstep and C1e can remain disabled.

Regarding your CPU-z screen shot, your voltage is too high for 4.2 so you either need to decrease it or increase the multi to 44 or 45.
Edited by Lucky 23 - 10/28/13 at 8:06am
Z170 Build
(20 items)
 
Z68 Build
(20 items)
 
Lenovo T430
(14 items)
 
CPUMotherboardGraphicsGraphics
I7 6700K @ 4.5ghz  Gigabyte Z170x Gaming 6 XFX R9 290x 8GB XFX R9 290x 8GB 
RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
KeyboardPowerCaseMouse
Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
CPUMotherboardGraphicsGraphics
I5 2500K @ 4.6ghz  ASRock Z68 Extreme 3 Gen 3 ASUS 7870 Ghz Edition ASUS 7870 Ghz Edition 
RAMHard DriveHard DriveOptical Drive
Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
CoolingCoolingCoolingOS
Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
OSMonitorKeyboardPower
Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
CaseMouse
Cooler Master HAF 932 Black Edition Cooler Master Havoc 
CPUGraphicsRAMHard Drive
i5-3210M  Intel HD Graphics 4000 4GB  Crucial MX200 256GB 
Hard DriveOSOSMonitor
Seagate 320GB Ubuntu 16.04 Windows 10 1600x900 
  hide details  
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Z170 Build
(20 items)
 
Z68 Build
(20 items)
 
Lenovo T430
(14 items)
 
CPUMotherboardGraphicsGraphics
I7 6700K @ 4.5ghz  Gigabyte Z170x Gaming 6 XFX R9 290x 8GB XFX R9 290x 8GB 
RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
KeyboardPowerCaseMouse
Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
CPUMotherboardGraphicsGraphics
I5 2500K @ 4.6ghz  ASRock Z68 Extreme 3 Gen 3 ASUS 7870 Ghz Edition ASUS 7870 Ghz Edition 
RAMHard DriveHard DriveOptical Drive
Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
CoolingCoolingCoolingOS
Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
OSMonitorKeyboardPower
Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
CaseMouse
Cooler Master HAF 932 Black Edition Cooler Master Havoc 
CPUGraphicsRAMHard Drive
i5-3210M  Intel HD Graphics 4000 4GB  Crucial MX200 256GB 
Hard DriveOSOSMonitor
Seagate 320GB Ubuntu 16.04 Windows 10 1600x900 
  hide details  
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by Lucky 23 View Post

You should have speedstep and C1e enabled otherwise you multi and voltage will not decrease at idle.

It's never recommended to overclock with your vcore on auto, you always want your voltage set to a specific value.I would also switch to offset voltage (+0.005) instead but at a minimum use fixed voltage.

If you use fixed voltage then speedstep and C1e can remain disabled.

Regarding your CPU-z screen shot, your voltage is too high for 4.2 so you either need to decrease it or increase the multi to 44 or 45.

In BIOS, for offset voltage, there's no option to set it at +0.005V, it's either +0.000V or +0.010V.

Can I just set fixed vcore @ 1.300V so that temps will go lower without enabling EIST and C1E?

Honestly though, still completely confused when it comes to changing vcore. And reading "Voltage is very important when overclocking. Simply put, too much voltage produces a dead CPU. Too little voltage and the CPU won't turn on." in that guide francisw19 linked above, makes me very nervous.
Edited by drakky - 10/28/13 at 2:13pm
post #5 of 5
Quote:
Originally Posted by drakky View Post

In BIOS, for offset voltage, there's no option to set it at +0.005V, it's either +0.000V or +0.010V.

Can I just set fixed vcore @ 1.300V so that temps will go lower without enabling EIST and C1E?

Honestly though, still completely confused when it comes to changing vcore. And reading "Voltage is very important when overclocking. Simply put, too much voltage produces a dead CPU. Too little voltage and the CPU won't turn on." in that guide francisw19 linked above, makes me very nervous.

Ok then you would have to try a +0.010 offset rather then a +0.005. Fixed Vcore will be a better option the Auto but when using Fixed voltage your CPU will not downclock at idle.The CPU will always be at a 42 multiplier at 1.3v. If you use fixed voltage then you will leave C1e and speedstep disabled.

1.3v is too much for a 42 multiplier but not high enough to cause damage to the CPU.
Edited by Lucky 23 - 10/28/13 at 5:26pm
Z170 Build
(20 items)
 
Z68 Build
(20 items)
 
Lenovo T430
(14 items)
 
CPUMotherboardGraphicsGraphics
I7 6700K @ 4.5ghz  Gigabyte Z170x Gaming 6 XFX R9 290x 8GB XFX R9 290x 8GB 
RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
KeyboardPowerCaseMouse
Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
CPUMotherboardGraphicsGraphics
I5 2500K @ 4.6ghz  ASRock Z68 Extreme 3 Gen 3 ASUS 7870 Ghz Edition ASUS 7870 Ghz Edition 
RAMHard DriveHard DriveOptical Drive
Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
CoolingCoolingCoolingOS
Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
OSMonitorKeyboardPower
Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
CaseMouse
Cooler Master HAF 932 Black Edition Cooler Master Havoc 
CPUGraphicsRAMHard Drive
i5-3210M  Intel HD Graphics 4000 4GB  Crucial MX200 256GB 
Hard DriveOSOSMonitor
Seagate 320GB Ubuntu 16.04 Windows 10 1600x900 
  hide details  
Reply
Z170 Build
(20 items)
 
Z68 Build
(20 items)
 
Lenovo T430
(14 items)
 
CPUMotherboardGraphicsGraphics
I7 6700K @ 4.5ghz  Gigabyte Z170x Gaming 6 XFX R9 290x 8GB XFX R9 290x 8GB 
RAMHard DriveHard DriveCooling
Gskill RipJaws V 16GB 3000mhz Samsung 850 EVO 250GB Seagate Barracuda 2TB EK-Supremacy EVO CPU Water Block 
CoolingCoolingCoolingCooling
EK R9 290X GPU Waterblocks EK-XRES 140 Revo D5 PWM Pump Alphacool NexXxoS 360mm ST30 Alphacool NexXxoS 240mm ST30 
CoolingCoolingOSMonitor
Alphacool NexXxoS 120mm ST30 Cooler Master Jetflo 120mm Fans Windows 10  LG 34UC88 
KeyboardPowerCaseMouse
Quickfire TK red switch Cooler Master V1000 MasterCase Pro 5 CM Storm Havoc 
CPUMotherboardGraphicsGraphics
I5 2500K @ 4.6ghz  ASRock Z68 Extreme 3 Gen 3 ASUS 7870 Ghz Edition ASUS 7870 Ghz Edition 
RAMHard DriveHard DriveOptical Drive
Gskill RipJaws X 16GB 1600mhz Seagate 2TB Seagate 320GB ASUS Burner 
CoolingCoolingCoolingOS
Cooler Master Eisberg 240L + 120mm Rad Koolance 3/8 x 1/2 Compression Fittings PrimoChill Advanced LRT Windows 7  
OSMonitorKeyboardPower
Ubuntu 12.04 ASUS 24" Cooler Master Quickfire TK  Cooler Master V1000 
CaseMouse
Cooler Master HAF 932 Black Edition Cooler Master Havoc 
CPUGraphicsRAMHard Drive
i5-3210M  Intel HD Graphics 4000 4GB  Crucial MX200 256GB 
Hard DriveOSOSMonitor
Seagate 320GB Ubuntu 16.04 Windows 10 1600x900 
  hide details  
Reply
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