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Core i7 860 running hot

post #1 of 11
Thread Starter 
Hello all,

I've got a few questions regarding my rig, because my processor is getting y hot.

First of all a few specs:
Case: Lian Li PC-60FNW Midi Tower (with stock case fans; 1x 120mm front intake @ 1000rpm 1 120mm back outtake @ 1200rpm)
PSU: Enermax Modu82+ 625W
Motherboard: Intel DP55KG
Processor: Intel Core i7 860 (EIST enabled, HT enabled, TB enabled)
Cooler: Scythe Yasya (with 120mm fan running at ~2000rpm, using Arctic Silver 5 Thermal Paste)
Memory: 4x Kingston HyperX Low Latency 2GB Memory (running at CL-9-9-9-24)
Graphics: MSI Geforce 460 GTX with the HAWX cooler on it
Sound: Creative X-Fi Platinum
RAID Controller: 3Ware 9650-4LPMI SATA HW RAID Controller
HDD 0: Corsair 60GB SSD (connected to the Intel AHCI Controller)
HDD 1: Western Digital Velociraptor 300GB SATA-II (in RAID-0, connected to the 3Ware HW RAID Controller)
HDD 2: Western Digital Velociraptor 300GB SATA-II (in RAID-0, connected to the 3Ware HW RAID Controller)

Next some info:
I'm using CoreTemp to measure the temperatures of each individual core. I personally don't care about overclocking. As long as my system works stable, it's fine for me. I would like to keep HT on, since I do quite a lot of compiling and video encoding and HT speeds up those processes quite a lot.

Finally the problem
The problem is that my CPU is running pretty hot when under heavy load. About 5 minutes of Prime95 or compiling and the CPU will already be running at 74-78 stressed (varying from core to core). This is where the CPU is running at the default TurboBoost speed (2,93GHz). The strange thing is that if the CPU is idling the (at 1,2GHz using EIST) the temperatures are fine. The temperatures will be somewhere between 34 - 38 degrees (varying from core to core).

Things I've tried so far:

- Re-applying the thermal paste and cooler; no effect (using about 2 rice grains of thermal paste, which I spread evenly using a guitar plectrum or folded paper).
- Re-seating the cooler; no effect (I'm sure the cooler is connected properly, all 4 pushpins on the motherboard are in the slot).
- Opening the case; minimal effect (no effect on idle temps, while on load it will vary 1 - 2 degrees);

Like I stated, I'm not really into overclocking and not too familiar with all the terms used and not interested in getting a faster system, just a cooler one .

The Questions:
What is the stock v-core of a Core i7 860 with HT enabled (couldn't find a good post on the net; perhaps setting the v-core static and lowering the v-core will result in lowering the temperature)?
Will disabling TB help?
Does anybody have any other suggestions to get the system cooler (like lowering some other voltages for instance)?
post #2 of 11
1.145 v, don't know if that's for HT or not.

If you OC you should always disable automatic under and overclocking, this will usually make you stable at a lower voltage.

Try using the dot method for the thermal paste instead of spreading it out. Just put a dab and plop the cooler on top.
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The Butthurt Box
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post #3 of 11
VIDs between 860s vary. Intel has it listed as .65-1.4v. Mine was 1.2x.

Pushpins can be difficult to fully lock. Even though you said its in, it might not be.
 
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post #4 of 11
Thread Starter 
Quote:
Originally Posted by theonedub View Post
VIDs between 860s vary. Intel has it listed as .65-1.4v. Mine was 1.2x.

Pushpins can be difficult to fully lock. Even though you said its in, it might not be.
My v-core is usually fluctuating somewhere between 1.25v and 1.3v (might be a BIOS setting, not too sure of it). Could it hurt if I change it to 1.145? Could it cause the system not booting at all or would it just cause a BSOD if the system doesn't like it?

Oh and I'm really sure about the pushpins, because if I open up the right side of the case I can view the area where the pushpin holes are located and all 4 of the pins are fully pushed through their holes ;-)
post #5 of 11
I really don't like pushpins...just getting that out of the way.

Anyhoo...is the cooler hot to the touch?
post #6 of 11
Too little Vcore can cause both boot failures and BSODs.

If you are positive with the pushpins go ahead and reapply the paste with the single blob (as suggested above). For reference, my 860 stays around 58C (depending on outside temps) 100% load w/ HT on.
 
CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 4.1ghz Gigabyte Z77X-UP4 TH EVGA 780Ti Classified HydroCopper Samsung 16GB (4x4GB) Wonder RAM 
Hard DriveHard DriveHard DriveCooling
Corsair Performance Pro 256GB  Western Digital Elements 2TB Samsung F4 2TB EK Supremacy  
CoolingCoolingCoolingCooling
EK-CoolStream XTX 360 (X2) D5 w/ EK Top XSPC Photon 270 Tube Reservoir EK Compression Fittings 
CoolingOSMonitorKeyboard
Yate Loon Medium (x13) Windows 10 Pro x64 Dell UltraSharp U2715H  Corsair Strafe RGB w/ MX Cherry Silent 
PowerCaseMouseOther
NZXT Hale90-1000-M Caselabs SM8 Logitech M705 Marathon  NZXT Sleeved Extensions 
Other
NZXT Sentry 2 Fan Controller  
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CPUMotherboardGraphicsRAM
Intel Core i7 3770K @ 4.1ghz Gigabyte Z77X-UP4 TH EVGA 780Ti Classified HydroCopper Samsung 16GB (4x4GB) Wonder RAM 
Hard DriveHard DriveHard DriveCooling
Corsair Performance Pro 256GB  Western Digital Elements 2TB Samsung F4 2TB EK Supremacy  
CoolingCoolingCoolingCooling
EK-CoolStream XTX 360 (X2) D5 w/ EK Top XSPC Photon 270 Tube Reservoir EK Compression Fittings 
CoolingOSMonitorKeyboard
Yate Loon Medium (x13) Windows 10 Pro x64 Dell UltraSharp U2715H  Corsair Strafe RGB w/ MX Cherry Silent 
PowerCaseMouseOther
NZXT Hale90-1000-M Caselabs SM8 Logitech M705 Marathon  NZXT Sleeved Extensions 
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post #7 of 11
olger901 - you can and should put most of your rig's info in your system specs. Just open UserCP at the top of this page. When you're in UserCP, go to the left column and search down until you come to Add System. Then add your specs.

i7 860's can run pretty hot. My testing workhorse is an 860 that gets plenty hot. With CPU-Z you can track your Vcore as you do various things. If you have Vcore on Auto your mb may drive it pretty high.

BTW - what is your ambient temp? Your heatsink is no better than the air you put through it.
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post #8 of 11
Thread Starter 
@theonedub: I tried re-applying the thermal paste the way but it had no effect.
@ehume: Intel Desktop Control Center reports an ambient temp of: 48 - 50 celcius when running at 3,2GHz
post #9 of 11
Quote:
Originally Posted by olger901 View Post
@theonedub: I tried re-applying the thermal paste the way but it had no effect.
@ehume: Intel Desktop Control Center reports an ambient temp of: 48 - 50 celcius when running at 3,2GHz
Usually we have to measure ambients with an external thermometer. Your body temp - 98.6F - is 37c. Somehow I doubt you're getting 50c ambient.
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alpha updated
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secundus
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Dell Creative SoundBlaster X-Fi MB3 
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i7 860 Gigabyte GA P55M UD2 ZOTAC/NVidia GTX 650 Ti 2GB 4x4GB G.Skill Ripjaws DDR3-1333 CAS9 
Hard DriveOptical DriveCoolingOS
Samsung 1TB Spinpoint F3 7200.12 Plextor 24x DVD burner Cooler Master Hyper Z600R Win7 64-bit 
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Wireless Mouse WACOM Intuos 3 generic 
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post #10 of 11
Thread Starter 
Quote:
Originally Posted by ehume View Post
Usually we have to measure ambients with an external thermometer. Your body temp - 98.6F - is 37c. Somehow I doubt you're getting 50c ambient.
Outside the case: 23-24 (room temperature)
Inside the case: 29-30
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