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Paste Question...

post #1 of 6
Thread Starter 
Okay, so...before I hop into this...

I decided to use Frostbyte because I'm having some "issues" with our current paste "distributor" and I may switch...So, at both home and the office, I decided to give it a "whirl".

My home PC is OC'd heavily, sig rig; I'm actually encountering the same "issues" but, my core @ home is at 1.35vcore...Work comes first though...So, here goes.

This is a PC I'm currently benching the living crap out of...This may be our future enthusiast model so, I need to know what it's limits are...Frostbyte in all of the reviews I saw/was presented with actually did 1-2c better so, again, why not?

Well, now I'm having some doubts...

This Pc is cooled by an independent rad box...Built 1 for my home office and then was so impressed, built 2 for work.

The box is basically a gutted 932, 11 2k rpm Coolermaster R4 fans with a XSPC 480 + XSPC 360 sandwiched together...It also has it's own pump, a swiftech 655 V w/EK top and a resi.

The PC in question is:
Z68 SLI
I7 2700k
2x GTX 590
Corsair AX 1200w
OCZ SSD

So, including the rad box + PC the loop goes:

{Resi} --> Pump1 --> QDC1 --> Raystorm --> 590 --> 590 --> Pump2 --> QDC2 --> XSPC 480 --> XSPC 360 --> {Resi}

The rad box itself can dissipate @ 1500W according to my math but, it's realistically only dissipating @ maybe 800-900 because the 590s are never in 100% usage.

I'm using Aida64 to monitor all temps...Including CPU.

My question is in regards to thermal paste...For these tests I was running stock...I actually never got past stock because of the temperatures.

I had a 2600k under this loop for about a week and the 2600k was running 3.4 @ 0.995vcore with temps between 28c and 36c under load.

Good temps, I thought the 2700k would see the same results...Right?

Well, the 2700k is doing 3.5ghz @ 0.975 vcore with increased temps between 32c and 40c under load.

2600k@0.995v = 28c-36c
2700k@0.975v = 32c-40c

During my testing of the 2700k, the ambient temps dropped 10-15f because the AC kicked in and...Above were actually my finals.

I re-seated the block 2 more times on the 2700k, so now a total of 3 times, each with a new re-coating of Frostbyte only to see a 1c-2c +/- difference.

Right now it is 65F in the office and I just ran Heaven again, to receive the same results.

At home, I'm seeing "good" results with Frostbyte, @1.35vcore I'm seeing 62-70c fairly consistently...From what I've read this is really good so, when I see this work PC jump like that, it brings forth a question of consistency.

I have //NO// issue swapping the paste, it's just weird how I'd get a better result at home with a higher ambient than at work...

What do you guys think? Just crap thermal paste or am I doing something wrong at work compared to at home?
post #2 of 6
You can try a re-seat, but I have little experience with that paste.

I've personally never used anything other than Shin-Etsu and IC-7 pastes, and they've never let me down.

vvvAlso what was said below. No two cpu's are ever exactly alike...even from the same batch number.
Edited by Mongol - 10/27/11 at 6:51am
post #3 of 6
You can't expect different CPUs even of the same model to have exactly the same thermal results.
Black Noise
(22 items)
 
  
CPUMotherboardGraphicsGraphics
i7 990X Asus Rampage III Extreme EVGA 980Ti EVGA 980Ti 
RAMHard DriveHard DriveHard Drive
24GB Corsair Dominator GT PC3-16000 Samsung 850 EVO Crucial CT750MX300 Seagate Momentus 2TB 
Hard DriveOptical DriveCoolingCooling
Seagate Momentus 2TB Sony Optiarc AD-7690H Slimline DVD-RW Blocks - EK Supremacy, 2 x EK FC-Titan X, EK FC... Radiators - 2 x Black Ice SR1 480, 2 x Black Ic... 
CoolingCoolingCoolingOS
Pumps - Swiftech 35X2 x 2 & Heatsinks Reservoir - EK Multioption X2 400 Advanced Fans - 20 x Noiseblocker PL2 Windows 7 Pro 64-bit 
MonitorKeyboardPowerCase
NEC MultiSync LCD2690WUXi Enermax Aurora Seasonic Platinum 1000 Case Labs TH10 & Pedestal 
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Black Noise
(22 items)
 
  
CPUMotherboardGraphicsGraphics
i7 990X Asus Rampage III Extreme EVGA 980Ti EVGA 980Ti 
RAMHard DriveHard DriveHard Drive
24GB Corsair Dominator GT PC3-16000 Samsung 850 EVO Crucial CT750MX300 Seagate Momentus 2TB 
Hard DriveOptical DriveCoolingCooling
Seagate Momentus 2TB Sony Optiarc AD-7690H Slimline DVD-RW Blocks - EK Supremacy, 2 x EK FC-Titan X, EK FC... Radiators - 2 x Black Ice SR1 480, 2 x Black Ic... 
CoolingCoolingCoolingOS
Pumps - Swiftech 35X2 x 2 & Heatsinks Reservoir - EK Multioption X2 400 Advanced Fans - 20 x Noiseblocker PL2 Windows 7 Pro 64-bit 
MonitorKeyboardPowerCase
NEC MultiSync LCD2690WUXi Enermax Aurora Seasonic Platinum 1000 Case Labs TH10 & Pedestal 
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post #4 of 6
Thread Starter 
Quote:
Originally Posted by Big Elf View Post
You can't expect different CPUs even of the same model to have exactly the same thermal results.
...With a .20 lower Vcore...I can't expect a die of the same exact size/etc to have a lower thermal result?
post #5 of 6
Random chance and luck. The DTS aren't particularly accurate so if one of them's off by 5ºC it'll skew the results.
Black Noise
(22 items)
 
  
CPUMotherboardGraphicsGraphics
i7 990X Asus Rampage III Extreme EVGA 980Ti EVGA 980Ti 
RAMHard DriveHard DriveHard Drive
24GB Corsair Dominator GT PC3-16000 Samsung 850 EVO Crucial CT750MX300 Seagate Momentus 2TB 
Hard DriveOptical DriveCoolingCooling
Seagate Momentus 2TB Sony Optiarc AD-7690H Slimline DVD-RW Blocks - EK Supremacy, 2 x EK FC-Titan X, EK FC... Radiators - 2 x Black Ice SR1 480, 2 x Black Ic... 
CoolingCoolingCoolingOS
Pumps - Swiftech 35X2 x 2 & Heatsinks Reservoir - EK Multioption X2 400 Advanced Fans - 20 x Noiseblocker PL2 Windows 7 Pro 64-bit 
MonitorKeyboardPowerCase
NEC MultiSync LCD2690WUXi Enermax Aurora Seasonic Platinum 1000 Case Labs TH10 & Pedestal 
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Black Noise
(22 items)
 
  
CPUMotherboardGraphicsGraphics
i7 990X Asus Rampage III Extreme EVGA 980Ti EVGA 980Ti 
RAMHard DriveHard DriveHard Drive
24GB Corsair Dominator GT PC3-16000 Samsung 850 EVO Crucial CT750MX300 Seagate Momentus 2TB 
Hard DriveOptical DriveCoolingCooling
Seagate Momentus 2TB Sony Optiarc AD-7690H Slimline DVD-RW Blocks - EK Supremacy, 2 x EK FC-Titan X, EK FC... Radiators - 2 x Black Ice SR1 480, 2 x Black Ic... 
CoolingCoolingCoolingOS
Pumps - Swiftech 35X2 x 2 & Heatsinks Reservoir - EK Multioption X2 400 Advanced Fans - 20 x Noiseblocker PL2 Windows 7 Pro 64-bit 
MonitorKeyboardPowerCase
NEC MultiSync LCD2690WUXi Enermax Aurora Seasonic Platinum 1000 Case Labs TH10 & Pedestal 
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Reply
post #6 of 6
Thread Starter 
Quote:
Originally Posted by Big Elf View Post
Random chance and luck. The DTS aren't particularly accurate so if one of them's off by 5ºC it'll skew the results.
Hrm...Did not know that...Wow, okay.

So, it's not necessarily the paste then...

Interesting, ty sir.
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