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Crashing Z270Pro4
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Dustbag1969 View Drop Down
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    Posted: 06 Mar 2017 at 5:40pm
Hi,
 
I have recently built a new system and I am having a lot of problems with it crashing while under load.
 
MB: Asrock Z270Pro4
CPU: I5-7600K (Not overclocked)
Fan: Corsair H100 water cooler
GFX: Sapphire R9 Fury
Mem: 16Gb HyperX Savage 4x4Gb
PSU: Corsair 750W
OS: Windows 10

I do seem to be seeing high temperatures reported for the motherboard even though I have 5 case fans installed and the ambient room temp is <21°C. Under load I am seeing motherboard temperatures of >45°C. Is this normal/anything to worry about.
 
Any suggestions appreciated?
 
Thank you 
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Stefan75 View Drop Down
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I had a notebook with random crashes.. in the end it was a faulty memory.
Changed from 8 to 4GB, then it was rock solid.
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wardog View Drop Down
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Yeppers.

Seeings you'r ewater cooling you've now removed any airflow over the VRM section. These need airflow to keep cool.

To test this, place a fan over them blowing directly on/over them and see if your crashing under load ceases.

My bet, it ceases.



Keep us posted please.
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Dustbag1969 View Drop Down
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Points: 16 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Dustbag1969 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Mar 2017 at 8:52pm
Thank you for the suggestions
 
Memory - I will try memtest on my memory tonight and see if any errors are reported on the memory
 
VRM - I was hoping that with 5 separate fans I would have sufficient airflow inside the case but I will try as you have suggested.
I am at work at the moment and cannot visualise the layout inside the case but why do you think the watercooler will have obstructed the VRM?
 
Regards
 
 
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wardog View Drop Down
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Originally posted by Dustbag1969 Dustbag1969 wrote:

I am at work at the moment and cannot visualise the layout inside the case but why do you think the watercooler will have obstructed the VRM?


1. Most importantly now that you do not have a conventional HS/F moving air over the CPU to cool the VRM section it will get hot. Hot enough to do what you describe.

2. That monster GPU, Fury R9, isn't helping much as it tends to enable a stale pocket of air in the upper left, right where the VRMs reside.

So, we come to 3. The two above only serve to aggravate an already tenuous warm/hot VRM section.



 
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wardog View Drop Down
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Points: 6447 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 06 Mar 2017 at 10:19pm
And last I knew Corsair AiO docs stated a need to install a fan over the VRMs.

For just the reason you have. They are now overheating and going into Protection Mode(lower performance/output) first, then shutting down completely in Safety Mode. Just as their circuits are designed to do.
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Dustbag1969 View Drop Down
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Hi Wardog,
 
Would you recommend I sell my liquid cooling and install a conventional air cooler?

I already have a 120mm mounted near the top rear of the case which is blowing in the direction of the VRM. Do you think this will be insufficient?
 
Thanks again
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wardog View Drop Down
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Oh heck NO. Keep the Corsair. Your CPU will love you right back for keeping it chilled with water.

But the trade off is putting a fan in there to cool the VRMs. Then they too will reciprocate and not behave as they, I believe, are.
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wardog View Drop Down
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Most airfow via case fans doesn't create enough turbulence at the board level to be much help.

An inch above board level, yea. That's just the nature of things.



But that R9 Fury monstrosity surely acts a brick wall. Complicating matters in an area considered already lacking.
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wardog View Drop Down
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Originally posted by Dustbag1969 Dustbag1969 wrote:


I already have a 120mm mounted near the top rear of the case which is blowing in the direction of the VRM. Do you think this will be insufficient?

Meh. Place a fan, the 120mm above, over the VRms and post back the results.

I'm 99.999% sure you'll be surprised. And happy.
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