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Overclocking temps too high?
07-15-2012, 07:37 PM,
#1
Overclocking temps too high?
Hey Guys,

I decided to try some overclocking today and am a bit concerned with the temps I've been getting. They're high, aren't they? I read the "how to overclock" guide that said temps during the Prime95 torture test shouldn't go above 80-85C but my cores all were in that range while running the test for only about an hour or so (no errors showed up). I was only at a multiplier of 38 (bus speed 100). My room is currently pretty dry and cool.

CPU: i5-3570k
Cooler: Havik 140 dual fan
Case: HAF 932 Advanced

I used the thermal paste that came with the Havik and put a small (about a rice grain) amount in the middle and placed the Havik directly over it. My case fans are all directly connected via Molex (direct to PSU) and the Havik is connected into the cpu_fan pins on the m/b.

I am brand new to overclocking so I definitely could be doing something wrong. Thanks for any insight/tips!

[Image: 7578770272_ec6b561dac_c.jpg]

This next pic is after I turned off the Prime95 stress test (no load on cpu). Still a bit high?

[Image: 7578770516_3efe3acb10_c.jpg]
CPU: Intel Core i5-3570k Ivy Bridge CPU cooler: NZXT Havik 140 Mobo: Biostar TZ77XE3 LGA 1155 Case: Cooler Master HAF 932 Advanced Full Tower RAM: 8GB (2x4GB) Video Card: Gigabyte GeForce GTX 670 2GB Storage: Samsung 830 Series 256GB SSD PSU: Rosewill Capstone Series 650W 80+ Gold Audio: Asus Xonar DG 5.1 sound card Screen: Asus VH238H 23" 1080p HDMI LED monitor Keyboard: CM Storm Quick Fire Rapid Cherry MX Brown
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07-15-2012, 08:10 PM,
#2
RE: Overclocking temps too high?
Yes, your temperatures definitely are too high. Try reapplying the thermal paste and reseating the cooler.
Case: Cooler Master HAF 932 Advanced CPU: Intel Core i7 2600K CPU Cooler: Thermalright Silver Arrow CPU TIM: Thermalright Chill Factor III GPU: Sapphire Radeon 6970 VGA Cooler: Arctic Cooling Accelero Xtreme Plus SSD: Crucial M4 256GB HDD: Samsung F3 1TB Motherboard: ASRock P67 PRO3 RAM: 4x4GB (16GB) Kingston HyperX DDR3 1600MHz Optical Drive: ASUS 24X PSU: 550W Kingwin Lazer 80 Plus Platinum Fan Controller: Scythe Kaze Q12 Sound Card: Asus Xonar Essence STX Keyboard: Rosewill RK-9000 Cherry MX Blue Mouse: Logitech G500 Monitor: Sceptre 27"
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07-16-2012, 08:49 AM,
#3
RE: Overclocking temps too high?
Thanks for the reply, Brian. I'll get in there, clean it up and try it again.
CPU: Intel Core i5-3570k Ivy Bridge CPU cooler: NZXT Havik 140 Mobo: Biostar TZ77XE3 LGA 1155 Case: Cooler Master HAF 932 Advanced Full Tower RAM: 8GB (2x4GB) Video Card: Gigabyte GeForce GTX 670 2GB Storage: Samsung 830 Series 256GB SSD PSU: Rosewill Capstone Series 650W 80+ Gold Audio: Asus Xonar DG 5.1 sound card Screen: Asus VH238H 23" 1080p HDMI LED monitor Keyboard: CM Storm Quick Fire Rapid Cherry MX Brown
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07-16-2012, 11:02 AM,
#4
RE: Overclocking temps too high?
Here's something I find odd: Under load, your CPU voltage is at 1.14V, but under no load it's at 1.2V. What's your voltage settings? That could certainly explain the high temperatures.
Laptop: MSI GS30 Shadow-045 Dimensions: 12.6" x 8.9" x 0.8" 2.65lbs CPU: Intel Core i7-4870HQ Quad-Core + Hyper-Threading OC 2.5-3.9GHz RAM: 16GB DDR3 1600MHz Video Card: Intel Iris Pro 5200 Storage: 2x128GB SDD RAID0 Audio: ASUS Xonar U3 USB Sound Card + Audio-Technica ATH-M50 headphones Screen: 13.3" - 1920 x 1080 IPS + 27" Dell P2715Q IPS 3840 x 2160 Keyboard: Filco Majestouch MX Cherry Blue Mouse: Logitech MX518
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07-16-2012, 11:53 AM,
#5
RE: Overclocking temps too high?
That's a good point too, Mathieu. Thank you for pointing that out. I need to double check my voltage settings. After reading your post I came across this article. Different processor (and using liquid cooling, etc.) but still informative:
http://www.anandtech.com/show/5763/under...ivy-bridge

(you guys probably know that stuff in the article; just linking in case anyone else might be interested.)
CPU: Intel Core i5-3570k Ivy Bridge CPU cooler: NZXT Havik 140 Mobo: Biostar TZ77XE3 LGA 1155 Case: Cooler Master HAF 932 Advanced Full Tower RAM: 8GB (2x4GB) Video Card: Gigabyte GeForce GTX 670 2GB Storage: Samsung 830 Series 256GB SSD PSU: Rosewill Capstone Series 650W 80+ Gold Audio: Asus Xonar DG 5.1 sound card Screen: Asus VH238H 23" 1080p HDMI LED monitor Keyboard: CM Storm Quick Fire Rapid Cherry MX Brown
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07-16-2012, 11:03 PM,
#6
RE: Overclocking temps too high?
Alright,

Bought some Arctic Silver 5, cleaned up my cpu and havik 140, re-applied and re-installed. I like these temps a lot more.

CPU stock idle:
31C on all cores
Core Voltage: 0.948V
-------------------------------
CPU stock torture test:
50C, 51C, 56C, 53C
Core Voltage: 1.092V
-------------------------------
CPU 3.8GHz idle:
31C, 27C, 34C, 37C
Core Voltage: 1.212V
-------------------------------
CPU 3.8GHz torture test:
57C, 57C, 60C, 58C
Core Voltage: 1.152V (not sure why this is lower than idle voltage)
--------------------------------------------------------------------
I only did the tests for a few minutes each. I just wanted to check temps real quick. After all this, I actually went back into BIOS and put everything back to default (basically 3.4GHz).

The temps seem ok now...I think.

I'm not sure about my voltage settings. I left the BIOS (Tier 7 Biostar mobo) in its default for voltage which is something called "Spec Voltage" at 1.044V. This setting seems to adjust voltage depending on the need of the CPU. (However, not sure why one of my torture tests had a lower voltage than in idle. That voltage number did change throughout testing though so the photo I took could have been at a low point).

There is another setting in BIOS: "Fixed" that would allow me to manipulate "CPU Vcore". Is that the setting I would use to play with voltage during overclock testing? Basically, drop that down (I might start at 1.00V and raise the CPU multiplier (by 1s) until it fails, then raise the voltage, say by .1 and try again until it works? I will not raise it beyond 1.28V.

I'm not looking to go crazy. I'm thinking 4.4 - 4.5GHz would be nice. Seems like some were able to hit 4.5GHz with good temps and stability at 1.1V.

Sorry for all the bugging with this. And thanks again for all the input so far.
CPU: Intel Core i5-3570k Ivy Bridge CPU cooler: NZXT Havik 140 Mobo: Biostar TZ77XE3 LGA 1155 Case: Cooler Master HAF 932 Advanced Full Tower RAM: 8GB (2x4GB) Video Card: Gigabyte GeForce GTX 670 2GB Storage: Samsung 830 Series 256GB SSD PSU: Rosewill Capstone Series 650W 80+ Gold Audio: Asus Xonar DG 5.1 sound card Screen: Asus VH238H 23" 1080p HDMI LED monitor Keyboard: CM Storm Quick Fire Rapid Cherry MX Brown
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07-17-2012, 10:50 AM, (This post was last modified: 07-17-2012, 10:51 AM by MathieuB.)
#7
RE: Overclocking temps too high?
Well your temperatures are already a big improvement.

I would indeed go with the "Fixed" setting and manually adjust the CPU Vcore voltage. Your idea sounds good, except that I would suggest changing the Vcore voltage in much smaller steps, like 0.0125v at a time. 0.1v is a big different for a CPU and will result in a big difference in CPU temperatures too.

4.5GHz at 1.1-1.15v should be feasible indeed, I mean you're at 3.8GHz/1.15v and close to 60C right now, so you still have about 20C of "safe headroom".

Something else to get: A freeware called Speedfan. It allows you to monitor your CPU fans speed and most of the time, allows you to manually control them too. That way you can fine tune them to the best balance between performance and low-noise.
Laptop: MSI GS30 Shadow-045 Dimensions: 12.6" x 8.9" x 0.8" 2.65lbs CPU: Intel Core i7-4870HQ Quad-Core + Hyper-Threading OC 2.5-3.9GHz RAM: 16GB DDR3 1600MHz Video Card: Intel Iris Pro 5200 Storage: 2x128GB SDD RAID0 Audio: ASUS Xonar U3 USB Sound Card + Audio-Technica ATH-M50 headphones Screen: 13.3" - 1920 x 1080 IPS + 27" Dell P2715Q IPS 3840 x 2160 Keyboard: Filco Majestouch MX Cherry Blue Mouse: Logitech MX518
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07-17-2012, 06:45 PM,
#8
RE: Overclocking temps too high?
Doh! Yes, increments at 0.0125v at a time makes much more sense. Thanks again for checking in and providing guidance, Mathieu. Extra thanks on the Speedfan recommendation. Sounds very useful.
CPU: Intel Core i5-3570k Ivy Bridge CPU cooler: NZXT Havik 140 Mobo: Biostar TZ77XE3 LGA 1155 Case: Cooler Master HAF 932 Advanced Full Tower RAM: 8GB (2x4GB) Video Card: Gigabyte GeForce GTX 670 2GB Storage: Samsung 830 Series 256GB SSD PSU: Rosewill Capstone Series 650W 80+ Gold Audio: Asus Xonar DG 5.1 sound card Screen: Asus VH238H 23" 1080p HDMI LED monitor Keyboard: CM Storm Quick Fire Rapid Cherry MX Brown
Reply
07-23-2012, 11:13 AM,
#9
RE: Overclocking temps too high?
(07-16-2012, 11:03 PM)Andrebone Wrote: Alright,

Bought some Arctic Silver 5, cleaned up my cpu and havik 140, re-applied and re-installed. I like these temps a lot more.

CPU stock idle:
31C on all cores
Core Voltage: 0.948V
-------------------------------
CPU stock torture test:
50C, 51C, 56C, 53C
Core Voltage: 1.092V
-------------------------------
CPU 3.8GHz idle:
31C, 27C, 34C, 37C
Core Voltage: 1.212V
-------------------------------
CPU 3.8GHz torture test:
57C, 57C, 60C, 58C
Core Voltage: 1.152V (not sure why this is lower than idle voltage)
--------------------------------------------------------------------
I only did the tests for a few minutes each. I just wanted to check temps real quick. After all this, I actually went back into BIOS and put everything back to default (basically 3.4GHz).

The temps seem ok now...I think.

I'm not sure about my voltage settings. I left the BIOS (Tier 7 Biostar mobo) in its default for voltage which is something called "Spec Voltage" at 1.044V. This setting seems to adjust voltage depending on the need of the CPU. (However, not sure why one of my torture tests had a lower voltage than in idle. That voltage number did change throughout testing though so the photo I took could have been at a low point).

There is another setting in BIOS: "Fixed" that would allow me to manipulate "CPU Vcore". Is that the setting I would use to play with voltage during overclock testing? Basically, drop that down (I might start at 1.00V and raise the CPU multiplier (by 1s) until it fails, then raise the voltage, say by .1 and try again until it works? I will not raise it beyond 1.28V.

I'm not looking to go crazy. I'm thinking 4.4 - 4.5GHz would be nice. Seems like some were able to hit 4.5GHz with good temps and stability at 1.1V.

Sorry for all the bugging with this. And thanks again for all the input so far.

spec voltage should be the default setting, some may call it auto offset and your assumption is probably correct that it auto adjusts the voltage. the reason for lower voltage under load,(especially with Prime which has not been certified or validated for IB), is probably from vdroop. in order to compensate you will have to set LLC to compensate for it.

i dont like using fixed voltage settings especially for a 24/7 oc. why would you need 4.5 gig oc while web browsing? its just more wear and tear on your cpu. the more intelligent way would be to use offset voltages and keep power saving enabled and let it turbo up and down to your set oc as you need it. but if you use the fixed voltage route youll get better results diabling power saving features.

also new with ivy bridge, you now have realtime support in win7 with your boards tuner or with intels tuner. no more tedious rebooting after every change.

good luck to you.
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07-24-2012, 09:03 AM,
#10
RE: Overclocking temps too high?
PwnBroker, good stuff. Thank you! I'm reading about offset voltages right now.
CPU: Intel Core i5-3570k Ivy Bridge CPU cooler: NZXT Havik 140 Mobo: Biostar TZ77XE3 LGA 1155 Case: Cooler Master HAF 932 Advanced Full Tower RAM: 8GB (2x4GB) Video Card: Gigabyte GeForce GTX 670 2GB Storage: Samsung 830 Series 256GB SSD PSU: Rosewill Capstone Series 650W 80+ Gold Audio: Asus Xonar DG 5.1 sound card Screen: Asus VH238H 23" 1080p HDMI LED monitor Keyboard: CM Storm Quick Fire Rapid Cherry MX Brown
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