Hot 4790K

foster grant

foster grant

foster grant

Soldato
Joined
10 May 2012
Posts
6,270
Location
North London
OK so my CPU { specs are below} is getting a bit hot under load at around 80 - 85c when on games, idle are around 36-38c is there anything I can do to bring down the temps , I know that we have been getting some hot days so thats probably part of it but what can I do if anything to have it run a bit cooler, I have a silverstone tundra AIO cooler { with 2 x120 fans } , i was mooching around online and it seems one can under volt the CPU ?......but I dont know how to , or do I just leave it ?

Thanks .
 
Which motherboard do you have? You need a chipset capable of overclocking to modify clock speeds and voltages.

Is your cooler clean or does it need a good dusting? Case airflow could also be an easy improvement.
 
foster grant said:
Z97 gamer pro Mobo , and I did a good clean of the cooler about a week ago
Click to expand...
I would certainly make sure everything is fine with the cooler setup - paste/mount is ok, pump is running, fluid hasn't evaporated/dried up, fans aren't being kept at low speed. You'd think a 240mm cooler would do a bit better, even if it's a simple one.

But certainly look into Z97 overclocking info for guides to undervolting. You may find a fixed Vcore will lower temps as while it's not dynamic, the automatic Vcore settings can be on the high side.
 
Mine was ridiculously hot even with high end custom water so I ended up delidding it. Once I got the IHS off I found that the crap Intel paste had set like concrete so no wonder the temps were so poor. Once cleaned up I gave it some CLU on the die and stuck the IHS back on. I then Have Thermal Grizzly Kryonaut between the IHS and block and got a whopping 25 Degree C drop under load.
 
You shouldnt have to undervolt using a 240mm AIO, I would do everything LuckyBenski said first, then if it turns out you have a super hot chip like me and pastymuncher then look into delidding it.
 
OK so I changed the fans on the cooler , but its still the same ie Hot...I was just on BF1 to see what temps I would get and lol again a hot chip up to 94c , and as to delidding I have no clue how to do that, what about shutting off the boost function in BIOS?...would that make any difference ?
 
Some boards had a nasty habit of using stupid levels of vcore for that chip with early bios.

Monitor the voltage, if its high, either update the bios which would probably solve it, or manually peg it to something sensible
 
Have you got the AIO fans set to intake or output air from the case? If they are acting as an output then the 1080 is heating the CPU for you, something you can't really afford with a 4790k. Set the AIO fans to intake or seriously increase the amount of air flowing through the case, ie wind up the front case fans.
 
Vcore gets my vote. I have an Asus z97 deluxe with a 4790k. I can happily set vcore to 1.26 and clock the CPU at 4.4 to 4.5 all cores, but under standard Asus settings it will run at 1.35 vcore without overclocking, when without any overclocking it can run at 1.19 vcore stable.
 
Check that you have the latest motherboard bios first to rule out early bios overvolting although this was mainly Gigabyte boards. If you don't then download the latest and put it on a USB stick. Reboot the pc and enter the bios. Go to the tools section and fire up EZ-Flash 2. Point it to the USB stick that has the bios and let it do it's thing. ***Please note that flashing the bios will reset everything so write down your settings before flashing.*** When done it will either reboot or prompt you to reboot (can't remember which now). Go back into the bios and re-enter your settings.

To delid you need one of these or one of the many similar versions available elsewhere. I used the Der8auer that someone on the forums lent me and there is virtually no way you can damage the cpu. Once delidded apply some of this to the IHS taking care not to get any on the little transistors (you can coat them with nail varnish to preotect them). You then have the choice of sticking the IHS back on which is what I have chosen to do on both cpu's I have delidded, or leave it loose and held down by the motherboards clamping mechanism. If you decide to stick it back on you need some of this and just put a thin bead around the inside edge of the IHS and use the re-lidding attachment of the De-Lid mate 2 to let it set overnight. It may seem quite a bit of money but it's worth every penny in my opinion and the 25 degree C temp drop I got is quite significant. I would bet that your already bad Intel paste has gone off as well which is probably why you are getting these temps. You can sell the De-lid mate more or less for what you paid for it after you are done as well.

I wouldn't disable boost as this means you will only hit 4Ghz instead of 4.4Ghz. You need to get to the bottom of this cooling problem not cripple the cpu.
 
OK so after having a look in My cupboard I found a new silverstone 240 cooler ( didnt even know I had one ) so I'm gonna put that on using some Thermal Grizzly that I just made an order for and see how that goes , fingers crossed lol

Also my BIOS are 2203
 
I'd check the vcore before you get drastic. I think mine was 1.22v at stock, though they are all a little different.
 
OK so for now...I have taken out the 4790K ( my head just cant deal with it getting as hot as it was )and in it's place I have put in a 4790 ( non k ) ( which is from a pc my son was using , but no longer uses it.until I decide which way I'm going to go

Also even turning the CPU and case fans up made no difference to temps .
 
I wouldn't be SUPER worried about 80-85c in games in this weather with that chip. Its hotter than I would like but not OMG its going to blow up hot. Its around what I would expect with the stock intel cooler tbh.
 
pastymuncher said:
It's not the stock cooler though. He is using a 240 AIO and the cpu isn't overclocked so those gaming temps are just ridiculous.
Click to expand...

Agreed. I'm just saying that pulling the cpu is probably not necessary when temps are inline with what can be expected from the Intel cooler. The issue should be investigated and corrected, but it's not likely to damage the cpu using it in the meantime.
 
Ah right, I get what you were saying now. I had the context all wrong. I reckon that if he tried using the stock cooler with his cpu it would end up throttling very quickly. If it's hitting those temps with a 240mm AIO then it's going to be much worse with the stock cooler. The problem is that if I am right and the paste has dried up the more it's used the temps will probably get even worse. Delidding with the Delid tool is practically risk free because there is nothing that the user could do to mess things up. For the drop in temperature that you gain it's well worth doing. I wouldn't be happy with running a K series cpu at stock either. We pay a premium for a unlocked cpu so I would be looking at getting the most out of it that I can for my money.
 
You must log in or register to reply here.
Back
Top Bottom