I completed a small itx build 2 months ago with components from a past ATX case build, all components worked well & no issues, I just had to purchased an itx MB & cpu cooler. I did not game with the previous build, used for content creating & photo editing (Lr & Ps). I just wanted to build a sff for light office work & surfing the web, built another pc for my work stuff. Downsized from a huge tower on my desk, it was time for a smaller footprint.
New ITX Build:
ASUS z390i, i9-9900k, Samsung 950PRO M.2 512GB, Windows 10, Corsair Vengeance Pro 64GB, Corsair SF 600 PSU, CPU Cooler bequiet Pure Rock LP 100W TDP
The build went well, was concerned using the i9-9900k due to be a hot cpu but in the original build (MB was ASUS Z390) I cooled it with a Corsair AIO & temps at idle were always 29C-32C, when loaded with images and doing photo editing it didn't go much higher, 32C - 38C., then immediately after completing editing in Ps & re-imported back to Lr temps would go back to pretty much like they were at idle. So this told me the AIO did a great job cooling the cpu.
With that said, I figured if I use a low profile air cooler it would keep the i9 cpu at reasonable temps even under the lightest of loads, web surfing & light office work. I was correct, temps at idle were 33C - 35C due to case restrictions (OSMI 3.1, love this case & wanted to do a build in it) and basically stayed there, under light load it would just to 38C - 42C, once in awhile it would hit 50C then back down to 38C. Once at idle it would drop to 33C - 35C & stay there while not in use. At this time I was using the pc & it was operating just fine. Also at idle for 2 hrs & no change in temps. All good & happy it worked as I had hoped. I shelfed it for 2 months while working on another build.
Fast Forward....Day before yesterday I fired it up & right as the desktop appeared the temps were at 33C - 35C as before. I was working at my desk & started hearing the fans spinning louder & louder, at times varying in speed, have custom fan curves in bios. Temps were increasing slowly then jumped to 80C. Here are the temps after about 1 to 1.5 mins of being on at idle: Started at 33 - 35C then hit 40C, 48C, 50C, 45C, 38C, 49C, 55C, 60C, 55C, 65C, 72C, 80C. Here's where I shut it down. The fans were going crazy trying to keep up with the changing temps. I was seeing the increases then it would drop down all the time thinking ok its going to settle down here then watch it spike again, did this a few time then once it got to high 50's & above it never went back down. Yesterday I fired it up again & the same thing happened.
The onIy thing I can think of which would make sense is since it's a LP cooler it sits right on top of the cpu blowing hot air onto the mb creating heat in an area that is not easily/well ventilated, pretty tight fit between the ram & vrm cover. I tried to find a air cooler where the radiator is positioned above the cpu a bit so air can pass under it and thus creating a better airflow, however the space I have to work in is only 70MM due to PSU location in the case. I did find one that is 67MM in height but that only allows me 3mm spacing between radiator & PSU which would be to restrictive. Its either to low (right over cpu) or to tall. But what doesn't make sense is why now? Why didn't it happen 2 months ago when I built it & used it for a week?
Does anyone have a thought as to what is causing this? It's a complete mystery to me. My other thought was to purchase another cpu & see if that works. If I do go this route I was thinking about one that doesn't run as hot, the i9 is a hot cpu & TDP is 95W, thinking of purchasing the i5-8500, TDP65W. Thanks for reading my post, hope to get some feedback...jp
New ITX Build:
ASUS z390i, i9-9900k, Samsung 950PRO M.2 512GB, Windows 10, Corsair Vengeance Pro 64GB, Corsair SF 600 PSU, CPU Cooler bequiet Pure Rock LP 100W TDP
The build went well, was concerned using the i9-9900k due to be a hot cpu but in the original build (MB was ASUS Z390) I cooled it with a Corsair AIO & temps at idle were always 29C-32C, when loaded with images and doing photo editing it didn't go much higher, 32C - 38C., then immediately after completing editing in Ps & re-imported back to Lr temps would go back to pretty much like they were at idle. So this told me the AIO did a great job cooling the cpu.
With that said, I figured if I use a low profile air cooler it would keep the i9 cpu at reasonable temps even under the lightest of loads, web surfing & light office work. I was correct, temps at idle were 33C - 35C due to case restrictions (OSMI 3.1, love this case & wanted to do a build in it) and basically stayed there, under light load it would just to 38C - 42C, once in awhile it would hit 50C then back down to 38C. Once at idle it would drop to 33C - 35C & stay there while not in use. At this time I was using the pc & it was operating just fine. Also at idle for 2 hrs & no change in temps. All good & happy it worked as I had hoped. I shelfed it for 2 months while working on another build.
Fast Forward....Day before yesterday I fired it up & right as the desktop appeared the temps were at 33C - 35C as before. I was working at my desk & started hearing the fans spinning louder & louder, at times varying in speed, have custom fan curves in bios. Temps were increasing slowly then jumped to 80C. Here are the temps after about 1 to 1.5 mins of being on at idle: Started at 33 - 35C then hit 40C, 48C, 50C, 45C, 38C, 49C, 55C, 60C, 55C, 65C, 72C, 80C. Here's where I shut it down. The fans were going crazy trying to keep up with the changing temps. I was seeing the increases then it would drop down all the time thinking ok its going to settle down here then watch it spike again, did this a few time then once it got to high 50's & above it never went back down. Yesterday I fired it up again & the same thing happened.
The onIy thing I can think of which would make sense is since it's a LP cooler it sits right on top of the cpu blowing hot air onto the mb creating heat in an area that is not easily/well ventilated, pretty tight fit between the ram & vrm cover. I tried to find a air cooler where the radiator is positioned above the cpu a bit so air can pass under it and thus creating a better airflow, however the space I have to work in is only 70MM due to PSU location in the case. I did find one that is 67MM in height but that only allows me 3mm spacing between radiator & PSU which would be to restrictive. Its either to low (right over cpu) or to tall. But what doesn't make sense is why now? Why didn't it happen 2 months ago when I built it & used it for a week?
Does anyone have a thought as to what is causing this? It's a complete mystery to me. My other thought was to purchase another cpu & see if that works. If I do go this route I was thinking about one that doesn't run as hot, the i9 is a hot cpu & TDP is 95W, thinking of purchasing the i5-8500, TDP65W. Thanks for reading my post, hope to get some feedback...jp
