Topic Title: Reboot when GPU temp over 80C
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Created On: 03/28/2014 11:20 AM
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 03/28/2014 11:20 AM
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pekanut
Peon

Posts: 4
Joined: 03/28/2014

Good day,

 

I built myself a gaming computer 1 week ago which includes the following components:

- i5-4440

GIGABYTE GA-Z87-HD3

Cooler Master Hyper212 Evo

- XFX Radeon HD 7950 double dissipation.

- PSU Nexus NX-5000 (from ca. 2009) 460 W, 500W peak

 

When I run OCCT 4.4.0 Power Supply Test the system Reboots as soon as the GPU temp (TMPIN0) goes over 80C, which happends within 1 minute or so.

If I stop testing at 80 or below everything is fine ...

Is it the Graphics card or the PSU causing the problem ?

 

Thanks for any help !

 03/28/2014 02:17 PM
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zipsi
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I'd say the psu, get a 600-700w Corsair/Seasonic psu and all the issues should magically disappear.



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Intel I7 3770K @ 4.5ghz, Cooler Master Hyper 212 Evo, Gigabyte Z77X-UD3H, Gigabyte HD7970 ghz edition, 4x4gb Kingston HyperX Beast 2133mhz, Seasonic Platinum 860, Samsung 840 Pro 256gb, OCZ Vertex 4 128gb, WD Black 1TB, WD Green 3TB+1.5TB, ASUS Xonar Essence ST, ASUS VE278Q, Windows 3.11
 03/28/2014 03:24 PM
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pekanut
Peon

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I also tried MSI afterburner

 

Tried MSI with case closed and open.

The result is the same: fans running at max below 50C, temp takes a bit longer to climb than before, even longer with case open (talking about 5 minutes instead of 3 ...)

System now reboots earlier: when reaching 75/77C instead of 80+ ...
Is it normal that the GPU heats up that fast ???!!!

 

And: this cannot be a PSU issue if the temp is involved ?!

 03/28/2014 07:02 PM
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Vegan
Alpha Geek

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check your chassis fans, front in, rear/top exhaust

 



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 03/28/2014 07:10 PM
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Fishman
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Here's a chart showing power usage. If it was me I would do as Zipsi recommends.  Better safe than sorry.



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GA-MA-790FXT-UD5P/ AMD Phenom II X4 965 Black/2 x XFX HD5870 /RipjawsX 2x4gb DDR3 1333/ Corsair TX750M/ Antec 900 case/ Windows 7x64 Ult.


 

 03/28/2014 07:31 PM
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black_zion
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Insufficient power is one thing which can cause overheating. Also that power supply is not well reviewed, and at 5 years old has lost approximately 10% of its original capability (~2% per year due to capacitor degeneration). It may not be THE issues, but it is AN issue which needs to be addressed else you will suffer future problems. Also, use MSI Afterburner to monitor the VRM bank temperatures and see if any hit 100°C. In the past couple of years XFX's quality has gone sharply downhill, so it is possible one bank of VRMs is not being adequately cooled and overheats (missing thermal pad, improper heatsink attachment, etc), the same way the HD 5970 did.

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AMD FX-8350 w/ Corsair H105, ASUS Sabertooth 990FX Gen3/R2, 8GiB G.SKILL DDR3-2133, XFX HD 7970, 512GB Vertex 4, 256GB Vector, 240GB Agility 3, Creative X-Fi Titanium w/ Creative Gigaworks S750, SeaSonic X750, Corsair C70, HP ZR2440w, Win 7 Ultimate x64
 03/28/2014 09:31 PM
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Vegan
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I agree that an underpowered low end PSU will not last long

I went for 850W to be safe

 



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 03/29/2014 08:09 AM
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pekanut
Peon

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Originally posted by: Fishman Here's a chart showing power usage. If it was me I would do as Zipsi recommends.  Better safe than sorry.

 

 

Thanks for the graph !

So my XFX consumes 328 Watt during peak load. The PSU is capable of 450W, even 500W during peak, according to specs. If I deduct the 2% per year as said by black_zion , I come to roughly 400 W, which should be enough.

 

But I still do not understand why it is always booting around 80C, there must be a link to the temp. Will check the VRM bank temp.

 

Thanks for the input !

 03/29/2014 08:18 AM
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Fishman
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Originally posted by: pekanut
Originally posted by: Fishman Here's a chart showing power usage. If it was me I would do as Zipsi recommends.  Better safe than sorry.

 

 

 

Thanks for the graph !

So my XFX consumes 328 Watt during peak load. The PSU is capable of 450W, even 500W during peak, according to specs. If I deduct the 2% per year as said by black_zion , I come to roughly 400 W, which should be enough.

 

But I still do not understand why it is always booting around 80C, there must be a link to the temp. Will check the VRM bank temp.

 

Thanks for the input !

The rest of your system draws power as well.Its not just the video card.

CPU,Memory,hdd's,,,

 You are cutting it close.

Its better to have a little more than just enough.



-------------------------

GA-MA-790FXT-UD5P/ AMD Phenom II X4 965 Black/2 x XFX HD5870 /RipjawsX 2x4gb DDR3 1333/ Corsair TX750M/ Antec 900 case/ Windows 7x64 Ult.


 

 03/29/2014 08:25 AM
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Vegan
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Originally posted by: pekanut
Originally posted by: Fishman Here's a chart showing power usage. If it was me I would do as Zipsi recommends.  Better safe than sorry.

 

 

 

 

    read this page

 

http://hardcore-games.azurewebsites.net/wp/hw/psu.php

 

Thanks for the graph !

 

So my XFX consumes 328 Watt during peak load. The PSU is capable of 450W, even 500W during peak, according to specs. If I deduct the 2% per year as said by black_zion , I come to roughly 400 W, which should be enough.

 

 

 

But I still do not understand why it is always booting around 80C, there must be a link to the temp. Will check the VRM bank temp.

 

 

 

Thanks for the input !

 



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 03/29/2014 08:26 AM
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Vegan
Alpha Geek

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Originally posted by: pekanut
Originally posted by: Fishman Here's a chart showing power usage. If it was me I would do as Zipsi recommends.  Better safe than sorry.

 

 

 

 

 

Thanks for the graph !

 

So my XFX consumes 328 Watt during peak load. The PSU is capable of 450W, even 500W during peak, according to specs. If I deduct the 2% per year as said by black_zion , I come to roughly 400 W, which should be enough.

 

 

 

But I still do not understand why it is always booting around 80C, there must be a link to the temp. Will check the VRM bank temp.

 

 

 

Thanks for the input !

 

 

    read this page

 

http://hardcore-games.azurewebsites.net/wp/hw/psu.php



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 03/29/2014 09:39 AM
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pekanut
Peon

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Originally posted by: Vegan     read this page

 

 

http://hardcore-games.azurewebsites.net/wp/hw/psu.php

 

 

Ok, I see: 450 W is not enough. But I still do not know:

1) why is the GPU heating up so fast, is it normal ?

2) why is it always rebooting around 80C ?

 03/29/2014 12:22 PM
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Thanny
Alpha Geek

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Your PSU is probably overheating due to the excessive load.  It takes a while for the heat to build up, during which time the GPU is also heating up.  There has to be some temperature that the GPU normally reaches in that time, and 80C is as good as any other figure.

Add more CPU load to the mix, and the PSU will overheat before the GPU has had time to get up that high.

The solution, in any case, is the same - get a quality PSU.  You want a single-rail model of at least 650W.  Don't even consider a unit that costs less than about $80.

And get a case fan or two.  80C under load suggests you probably have poor case ventilation.

 

 03/30/2014 12:11 AM
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UcouldBrong
Case Modder

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Joined: 01/05/2013

A gpu can heat up very fast.  Keep everything excessively clean.  Increase manual fan speed in gpus.  Provide much better case air intake AND exhaust airflow.  Add a fan in the case to directly blow across the gpu top surface. Upgrade fans.  Lower ambient temps.  Velcro a 120mm PWM exhaust fan to the outside of the case to directly assist removal of hot air from the gpu "area".

What black zion has said about psus is true.

Also, cpu temps with the cooler you have could be contributing heavily to high temps in your case and may be throttling down and resulting in a crash.  Don't worry too much about 80C...try to bring it down...anything higher...start worrying!

Case airflow, power supply and cpu temps should be attended to.



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