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Crashing Z270Pro4
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Dustbag1969 View Drop Down
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Joined: 06 Mar 2017
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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: 07 Mar 2017 at 8:22am
I have tried moving a few fans around to see the effect
 
1. Moved fans from the H100 onto the outside of the case so pulling air from the case through the radiator (Previously they were on the inside and very cramped)
2. Changed direction of fan at top rear of case to vent (Previously blowing into case)
3. Changed 2 fans on front of case to pump air into the case.
 
I don't know if it is a coincidence but since doing this I have managed to play Total War for 3 hrs without any crashes when last night I could not play for 15 minutes without crashing.
 
When I check the temperatures using the Asrock A-Tuning app it still says my motherboard temperature is 41°C under load but maybe this is normal? (Seems hot to me)
 
Thanks again Smile
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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: 07 Mar 2017 at 6:25am
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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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: 07 Mar 2017 at 6:22am
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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Points: 6447 		Post Options Post Options   Thanks (0) Thanks(0)   Quote wardog Quote  Post ReplyReply Direct Link To This Post Posted: 07 Mar 2017 at 6:16am
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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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: 07 Mar 2017 at 12:29am
 
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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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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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 10:13pm
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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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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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 6:46pm
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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Stefan75 View Drop Down
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Points: 80 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Stefan75 Quote  Post ReplyReply Direct Link To This Post Posted: 06 Mar 2017 at 6:42pm
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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