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I7 930 80c @ 2.8ghz hitting 80c+ after 5 mins of prime95

post #1 of 7
Thread Starter 
Hi guys, I've just recently posted in GPU forums as i was planning to upgrade my GPU to R9 390. So at same i figured i might do a light overclock just to reduce bottleneck my 930 will cause. I was planning to hit something super safe like 3.6ghz which shouldn't really be an issue since my cpu case got like 3 fans that i've mounted, cooler is not that bad either and motherboard is fine as well.

so my rig is as following:

CPU: I7 930 @ stock

Motherboard: ASUS P6T SE

Cooler: Scythe Mugen 2

Ram: DDR3 12gb Corsair 1600mhz CL dominator

PSU: TX 650w Corsair

Graphics: sapphire HD 5770

Case: Cooler Master Gladiator 600, with only 27cm length for GPU

OS: Win7 x64

and 3 HDs, 1 SSD, 1 BD rom

So the problem started this morning when i installed for first time after few years realtemp, prime and cpuz. I started to run Blend and i noticed my temperatures were hitting like 85c after few minutes. So i figured, I've been somewhat neglecting to clean my case, i opened it and spent entire can of air cleaning the CPU fan so its almost factory new shining now.

After that i started blend again and my temperatures are now still hitting 81c after 10 mins, with highest being 81 and lowest Tmax being 77. It stopped climbing after a while there so i assume it woudn't go up much higher but still seems really bad. Feels like i'm getting worse results than with stock cooler. Idle temperatures are around 45c when i just browse the net.

It seems like my 930 is c0/c1 since my vcore @ stock settings is at 1.256, so i figured since its that high i might test how high temperatures it would hit if i put it at 1.28v and set the BCLK to 150. After 5 mins of blend my highest Tmax hit 95c so i stopped it and set stuff back to factory setting.

Basically as it is, i got no room for overclock since im running at high temps even at stock freq.

Question is what could be causing the problem? Has thermal paste gone bad? Is it possible that fan cpu is not getting input to increase speed? I've checked and its obv spinning but i didn't check to see if it ramps up RPM when cpu goes under load.

I got no idea how well they did the thermal paste because the retailer didn't want to give me warranty for my SSD unless they did the assembly so i don't know how well it was done....

Thank you so much for the help smile.gif
Edited by gsdavid1 - 11/10/15 at 7:23am
post #2 of 7
Were your temps that high @ stock with that HSF initially (years back)?
Might have just not been a good seat this whole time and temps went unchecked/noticed.

TIM can degrade a bit after a few years - but not to the point where a decent cooler like that would perform worse than a stock one.
Regardless I'd say you should remove/clean/reseat the HSF and see what kind of results you get.

Might need to get some new paste for that, and just in case - all you need is a small grain of rice sized dot dead center of the chip/base and little twist.
To clean everything off use Isopropyl alcohol (90+ preferable, but 70+ works fine) and coffee filters (lint free cloth works too).

Hope that helps a bit smile.gif
Stugots III
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CPUMotherboardGraphicsRAM
i7 3770K @ 4.5GHz ASUS Maximus V Gene EVGA GTX 1060 SC 2x8GB G.Skill 2133MHz 
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Stugots III
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K @ 4.5GHz ASUS Maximus V Gene EVGA GTX 1060 SC 2x8GB G.Skill 2133MHz 
Hard DriveOptical DriveCoolingOS
250GB 850-EVO | 1TB EZEX | 2TB F4 It BURNS! H100i | NB Pros Windows 10 Pro x64 
MonitorKeyboardPowerCase
ASUS VE258Q Filco Majestouch I Seasonic X-560w Fractal Arc Mini R2 
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post #3 of 7
Quote:
Originally Posted by candy_van View Post


Regardless I'd say you should remove/clean/reseat the HSF and see what kind of results you get.

Might need to get some new paste for that, and just in case - all you need is a small grain of rice sized dot dead center of the chip/base and little twist.
To clean everything off use Isopropyl alcohol (90+ preferable, but 70+ works fine) and coffee filters (lint free cloth works too).

Hope that helps a bit smile.gif

This, reseat the cpu cooler and add new TIM and go from there, those temps are way to high for that voltage. Also ensure the cpu fan is spinning at correct rpms in BIOS. Should be an easy fix biggrin.gif
post #4 of 7
Thread Starter 
I think they were quite high even then, think i was planning to OC like 3-4 yrs ago even then but i saw high temps then and decided not to touch it since it had special RMA stickers for whole case...now that warranties are over i can check and fix it.

I called a friend that works w servers and stuff, so he will bring some wet tissues that are made for wiping the paste from servers lol so i wont be able to screw up there. I did few times apply thermal paste on cpu but never remove and apply but it should be quite easy w help i guess

If that doesn't fix the problem i either got a bad 930 or i should look into replacing the 120mm fan on cooler?

tnx
post #5 of 7
Do you still have the stock heat sink? If so, you could put that on and see if temps change and go from there.
post #6 of 7
A proper reseat / cleaning / application of new TIM should make a noticeable difference - I have a feeling that was the source of your issues.
The base not making proper contact with the chip for whatever reason will have a large impact on your temps in addition to ambient temperates in your room/case

A fan with decent static pressure will help as well but the meat & potatoes of the issue being resolved lie in the above.
Stugots III
(16 items)
 
  
CPUMotherboardGraphicsRAM
i7 3770K @ 4.5GHz ASUS Maximus V Gene EVGA GTX 1060 SC 2x8GB G.Skill 2133MHz 
Hard DriveOptical DriveCoolingOS
250GB 850-EVO | 1TB EZEX | 2TB F4 It BURNS! H100i | NB Pros Windows 10 Pro x64 
MonitorKeyboardPowerCase
ASUS VE258Q Filco Majestouch I Seasonic X-560w Fractal Arc Mini R2 
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Stugots III
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CPUMotherboardGraphicsRAM
i7 3770K @ 4.5GHz ASUS Maximus V Gene EVGA GTX 1060 SC 2x8GB G.Skill 2133MHz 
Hard DriveOptical DriveCoolingOS
250GB 850-EVO | 1TB EZEX | 2TB F4 It BURNS! H100i | NB Pros Windows 10 Pro x64 
MonitorKeyboardPowerCase
ASUS VE258Q Filco Majestouch I Seasonic X-560w Fractal Arc Mini R2 
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post #7 of 7
Thread Starter 
@C!rkus i actually got the stock cooler, i try to save all extra/old parts so i dont have much downtime on my desktop cpu if i have to wait for RMA parts to come back..but i'm not that comfortable working around the core so i will try to fix the main cooler first..if i get bad results ill plug the stock just to see if by some random luck or smtn the actual copper tubes and ribs or w/e its called are not transmitting heat properly (If that is even possible)

Ambient temperatures are rly fine now, like its <20c...i fear to think how bad it was in summer then lol...but i rarely get more than 50% load on cpu anyways, its mostly all ram used and GPU cant rly push the CPU so far but this should be an issue when 390 comes

Case temp should be decent, i got few fans so it shouldn't be that bad either

I will try to make the changes you suggest with this cooler and then go from there...its just weird..in OC posts ppl got 4ghz clocks with full load temperatures hitting low 70's and im way about that on stock

I forgot to mention that the fan on cooler is quite "weak" in sense the specs are for a quiet setup:

324 - 1200 RPM ±10%

Air Flow
0 - 74.25 CFM

Noise Level
0 - 26.50 dBA

i could put some 35dba 120mm to give it a extra push lol ;/

tnx for the help guys smile.gif
Edited by gsdavid1 - 11/10/15 at 12:44pm
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