JustPeachy

I think you misunderstood, there were loud pops and clicks, like a HDD on steroids, but they disappeared about about 30 mins. This post was about the clicking. The fans/moving air on the clip seems louder there than in real life, when the fast clicks were clearly audible over the fans 1.5m away. Perhaps I should have turned off all the other fans, so the underlying clicking was clearer on the sound clip. In the recorder app screenshot attached, you can clearly see the clicks. Anyway, I'm happy to report that the sound died away late in the evening, and I can't hear it this morning, so perhaps I was a bit too earlier in posting. Given what you had said on a previous post about noise being audible on every revolution (above), I got a bit worried. :!oops:

Following on from this thread with excellent advice from c-attack and DevBiker, I changed my configuration on my H100i v2, swapping it end-to-end and changing the fans to intake, to lower temps under load. It's doing a good job so far, though not stressed it yet with folding@home. [updated temps whilst folding: -11C CPU, +6C GPU, +5C mobo] The problem now is the noise. Before the change with the fans, there was a low hum, slightly louder on performance. Almost silent - perfect. I've read some posts that said the popping and clicking are bubbles that will go, and they have. I'm left with a continous noise, an audible fast ticking. c-attack said HERE "If it were a genuine mechanical issue, the noise would be produced on each revolution and get considerably worse as pump speed increased." The attachment is sound taken with my phone, side off the case. [You may need to turn up the volume, through my headphones it doesn't sound that loud.] About 10-12 secs in there are 3 clicks, these are mouse clicks as I changed from quiet to performance mode. The speed and volume of the fast-clicks increases. There is a slight low volume pause where I stopped the recording and then start it again. It's not very loud, how loud does it have to be to indicate a fault? Bear in mind it was run on low power for two years, and DevBiker said I was lucky it wasn't damaged. I don't recall doing anything to it particularly during install (apart from swearing at it). The bubble noises (like HDD noises) have gone, as I said earlier. Is there anything I can do to alleviate it if it's normal? What's happened to it, it was almost silent 12 hours ago... Coolant temp 25.4C, CPU 29C (idle), ambient temp 17C. Temps from Corsair Link. No other problems apart from the noise. Mounted at the top of the case, and case position makes no difference. Thanks for your attention. Voice 001.zip

Thank you. I know that this is about wrapped up but one last thing, if I may. I was just in the BIOS, from a cold boot, for 15 mins. Room temp 16C. CPU temp 41C. When I built this the equivalent was about 28C, idle in BIOS (even though the CPU header was underpowered). I cleaned it a couple of weeks ago, not that was much dust in it. Any idea why it would be so high? Idle in windows, 38C. If everything was 10 degrees less, as when I built it, all my issues would disappear!

My take home message is if I'm going to help save the world from Covid-19 by folding: 1) I should put up with the heat and the noise in this case, 2) change the fans to intake (btw is it better to have the fans pushing outside air into the rad or pulling outside air through it?) 3) get a bigger case, so the rad is further from the graphics card and I can get 2 rear exhaust fans fitted to lower case temp.

I've just opened it up whilst running and it IS pretty warm inside the case. One of the rad fans is a bit noisy, disappears if I slow it with my finger. I'd have to take the whole thing out to replace it though. If I kept it as exhaust and replaced the stock fans with better ones would that help? The CPU stocks fans were running at 2400rpm (on the image) and that seems a lot. I'm wary of having the fans as intake blowing warm/hot air right onto my graphics card. I think I'd prefer, with this case anyway, to exhaust it. I may have to give up folding in the afternoons in summer, the room air will be 25-30. Maybe I need a bigger case... Thanks again for replies.

OK I'll have a think about that. Not a great deal of room in the case and my heart sinks at the thought of trying to get it all back in again. One question you didn't address, what should be the max temp of the pump? It's an issue now as it's loud as I'm trying to keep it cool - but maybe I'm trying to keep it too cool? I can change the curve if 45 deg is acceptable. Side note - Right now folding is Off, virus scan is taking CPU to 70 deg at 20% load (pump 37.3, mobo 24). Just seems a bit hot :(

I only had AIDA on to show all the temps etc, I don't normally have it on. In fact until I started folding a couple of weeks ago, the only thing I kept an eye was the GPU core using Afterburner. I was just thinking about reversing the fans, but I've currently got 2 blowing in to the front and one blowing out of the back, plus the 2 exhausting from the radiator. If I turned those around, I'd have to do something with the others, 4 blowing in and 1 out otherwise. I was thinking I might have to put the cooler on the front as intake, and move the displaced ones to the top to exhaust. Alternatively replace the default fans with ML ones I've just read about, would that help? The point about fan#2 if that it is showing differently to the CPU fan speed. On the Link image I attached, you can see the 1562 rpm for fan 2 and that is indeed half of the pump speed (3150 rpm), but the CPU fan is 2400 rpm. Is that how it should be? Last folding GPU unit finished 30 mins ago. Current temps CPU package 39 deg @ 1% load, mobo 27 deg, pump 32.5 deg, cpu fan 1440rpm, pump 3180rpm, room temp guessing 18 deg. Thanks for your replies!

Thanks for replying so quickly. You're right, it does exhaust at the top of the case. It's just that, in the last couple of days, it's been 41/42 deg instead of 36/37 deg on the pump. How hot should the max be for the pump temp? I could change the curve to make it quieter if I know the pump temp I should be aiming for. The air from the radiator is just warm (if that), when I thought it would be hotter, and the motherboard temp is 27-30 deg. Would the motherboard temp be a suitable reading for 'temp-in-the-case'? Room temp 20 deg currently. The case is Corsair CC-9011049-WW Obsidian Series 450D Windowed Mid-Tower ATX High Airflow Performance Computer Case. Any idea what fan#2 is doing? It's obviously tied to the pump, but different to CPU fans. Thanks :) [PS I should also add that the CPU voltage was increased as I was getting bluescreens when folding. A knowledgeable friend, when I gave him the error message, said it was 'CPU droop' and talked me through increasing it a bit and it's been okay since. I know that it will increase the heat a little.]

Hello all My PC which was built in 2018, has a high temp for the H100i V2 pump I believe. I've read some other posts here before posting, and seeing that my pump speed was low, changed the BIOS so it has direct 12V. This means no longer bumps along below 1000rpm. It also had the effect of giving me a value for the Fan rpm, which was previously 0, even though I could see them running. The fan that seems to run at 50% pump speed is Fan#2, I have no idea what this is, exactly. The pump is connected to the CPU header. The PC is used for office work in the day, and gaming in the evening. Just recently I've started doing folding@home on the GPU during the day. This uses 99% GPU and takes my GPU temp to a steady 60 deg. It also, usually, takes my CPU up to 65 deg, despite only using 10% load total. (For comparison (without Folding at home running) Prime95 stress took CPU to 75 deg; running CPU and GPU folding together took it 87+ deg and I stopped it.) Normally whilst folding the temp for the pump would be 36deg, audible fans etc but not annoyingly so - probably the graphics card. Now, the pump temp is 42+, it's noticeably loud. I've a steeper curve on the CPU than than some I've seen, which I know will make it louder quicker, but I'm worried about the temp. What is normal ? I read a post that said 40deg should be max on the pump. Screenshots attached, running folding@home on GPU. Note taking the front filter off drops 3deg off the mobo temp on the screenshot. Afterburner set for 2secs reporting. The default cooler gunk was removed and replaced with some Noctua NT-H2, but it made no difference. I'm quite happy that the CPU sits in 60-65 when GPU folding, but the pump never used to be this hot with such heavy fan usage. The air coming out is lukewarm. Idle it's about 30 deg.