Z97-A Asus Mobo, i4-4690k CPU - Overheated Suddenly on Test 4 W/ Prime95

[Hellrott]

Hey guys,

I have a problem here. I upgraded a LOT on my computer in order to support crossfired R 380s including switching to a better mobo and upgrading to the above mentioned i5-4690k processor.

I clearly had a much better affinity for AMD overclocking with MSI because I am having nothing issue after issue with this one. I used the "Wizard" tool on BIOS and it determined that 4488 MHz was the appropriate OC setting. Fine, great in fact. So I start my test, which I'll include a picture of below, and it's all going great. 60 degrees, tests ramp up and it goes between 70-75. Well within where I'd like it to be during a stress test.

Then, suddenly, I'm seeing 100 degrees c on my cores so I immediately shut down the test.

http://imgur.com/zFZFPu2

Here is the aftermath.

Hopefully no damage was done, I cancelled it pretty quickly but I'm confused on what the issue is. Why the sudden jump? Prior to this I actually very slightly loosened my Evo 212 screws because I thought it may have been too tight and it seemed to have helped then suddenly this jump happened.

Anyone have any idea what happened?

 

[Darkbreeze]

In reality, you'll probably LOWER the overall sound by the addition of the other fans and changing that back fan's connection, because the system will be cooler and each fan will not need to be running at as high of an RPM.

So, any of these fans would work well for the front since you can mount 140mm fans there, and move your single front 120mm to the top. This will probably mean you'll need to remove the CPU cooler in order to fill that back fan location, so you might want to get thermal paste as well unless you already still have some.


Actually, any Noctua, Phanteks, Thermalright (NOT Thermaltake), Aerocool (DS. Dead silence series), Scythe or Cougar 140mm fan will work and be a good choice as long as you don't go with a cheap sub-ten dollar model. I'd recommend using PWM 4 pin fans but 3 pin fans are cheaper and can still be voltage/RPM controlled through the bios. Kind of hard to make recommendations when I don't know what will be available to you.

Since it looks like you have a Fry's there, this might be the best cheap option:

http://www.frys.com/product/7685617?site=sr:SEARCH:MAIN_RSLT_PG


But two of the 140mm Aerocool Dead Silence fans they carry would probably be better. Even two of the 120mm Aerocool fans would be a tremendous improvement, but I'd opt for the 140's if at all possible and they're only slightly more expensive than the 120's. Still, that price on the pair of Corsair fans isn't terrible either and there ARE much worse fans you could have.

 

[Hellrott]

You, my friend, have been enormously helpful. I have taken your advice and installed two 140mm fans in front (MassCool, only thing I could find in the 140mm range unfortunately) and moved the rest to exhaust which are unfortunately fan makes you clearly recommended against. However, regardless of the bad brands I am sure this will help. I will update when I'm finished I currently have it completely taken apart to reinstall everything appropriately and I will update to let you know how effective your recommendations were.

I meant i5-4690k btw, was definitely a typo

 

[Darkbreeze]

I figured it was a typo. I fat finger stuff all the time, and I don't even have fat fingers. Heh.

Masscool is better than NO cool, any day of the week. Masscool isn't the worst thing out there, but I think you might want to find a friend later on, not a good friend, just a friend, and sell those to them and get some really decent fans. This can probably wait until you get a better case, which can also wait until you're sure you've got everything worked out the way you want it. I really would opt for a better case and better fans. You can always sell your current case and fans to somebody, or repurpose them for a second build, maybe for a family member or friend who needs a system. For now though, I'm quite sure those changes will help.

Now just to address the current situation and make absolutely sure we've got things the way they're supposed to be, let it be clear that you should NOT have any of those fans connected directly to the power supply by way of 4 pin molex (Which is entirely different from 4 pin PWM) adapters. All fans should be connected to the motherboard headers or a fan hub, preferably the motherboard headers. I'd recommend connecting the two top exhaust fans and two front intakes, to the four chassis fan headers on the motherboard, and the rear exhaust fan to the CPU_OPT header on the motherboard. The CPU fan of course should be connected to the CPU_FAN header. Switch the fan on the CPU cooler to the front side of the heatsink blowing THROUGH the heatsink, even if it means you need to unclip and raise the fan up the heatsink a small amount to clear the RAM.

Be sure when you repaste the CPU lid to do it as outlined in the tutorial I linked to above, which I wrote and have some experience with, having installed probably fifty or more 212 EVO coolers over the last two to three years. Here is the link again and I'd suggest you read the whole tutorial as well as watching the linked videos and reading the other linked data in there as well. That way you just gain a little better understanding of this particular cooler, and cooling in general.

http://www.tomshardware.com/faq/id-2520482/solving-temperature-issues-hyper-212-evo.html