 So one of my followers on Twitter asked for an update on the wife PC as you guys may or may not recall. I rearranged the airflow configuration because I was trying to avoid the default config which is these fans blowing out and these fans sucking air in. I was trying to avoid the default configs tendency to accumulate dust rings on the front fan grill. So what I at first had planned to do was create a positive air pressure environment but that didn't really help because anywhere where air was being drawn in I was still getting that dust accumulation. So what I've gone with now is a single intake at the back. So that is running off of the CPU fan header with a voltage reducer in line so that it's running nice and quiet and nice and slow. So the sound you hear right now isn't the fan but actually it's the coil wind from the GPU because I have the firm arc as well as prime 95 running right now so that you guys can see what the temperatures are like. The fact that it's off the ground also helps a fair bit in terms of accumulating dust inside. So it's far less likely, far less liable to do that. So let's go ahead and open it up. I'm going to show you guys what the guts are looking like these days. So I did end up changing the motherboard. Oops, there goes the wifi antenna. Well, whatever. So I did end up changing the motherboard. Right now I've got an MSI Z68A GD80 in there. Nice high end board. Robust cooling on the voltage regulator modules which is good because I don't have a whole lot of cooling otherwise in this system. So the two top fans are disabled. They're off and there are no fans in the front so that is how I'm keeping those dust rings out and I'm maintaining the positive air pressure just by having just one intake fan and it might be positive. It might actually be more neutral because this is also an exhaust. So this is pulling heat away from the GPU which is running quite toasty but not to be expected it is running Furmark which also has a single 120mm fan running on the aftermarket cooler that is on there. So that is pretty much it. There's nothing really in the front of the case that needs to be cooled. All we've got is one SSD in here. There are no hard drives. This system relies 100% on network storage for its mass storage. You can see the configuration of that video card so there's a bunch of heat sinks and what not all over it. That's a 5870. It does still have a what is in there? It's a 2600K as well as 8GB of Linus Edition OCZ memory and Ausentec X Mystique that's an older PCI sound card as well as a Gigabyte WiFi Bluetooth card in there as well. So the config hasn't changed much. I just redid the motherboard. I unplugged all the fans. I switched the power supply around so that this would act as an exhaust for the hot air coming off of the graphics card because that's really really toasty and I didn't want to blow it the other way up towards the CPU cooler because especially in a heavy load environment running the CPU passive like that is pretty tough. It's really asking for a lot. Now bear in mind guys this system is not overclocked in any way. Sorry I'm just adjusting something there. I want to close this up here before I show you guys anymore. Hold on I'm just going to let the camera hang for a bit. I apologize if this is like motion sickness inducing because there's just nothing else I can really do with it right now. Ok there. The case is closed up because I want to show you guys closed side panel temperatures when I show you the Prime95 Furmark temps that are going on in here. Once again the system is not very loud. That coil whine you hear is from the graphics card it will turn off when we turn off Furmark. Furmark really does a number on graphics cards and I found especially the last few generations AMD cards well they whine a little bit. Alright here we go. So CPU temps with 8 threads of Prime95 are around 60 degrees which are super acceptable and Furmark has been running for the last little bit here and it looks like we're going to peak around that sort of 76 to 77 down to 76. Oh look at that good timing. We just hit the peak right around the time that we stopped filming here and I stopped talking about it so you can see now it's really balanced itself out a fair bit. So I think that pretty much covers it. So the 5870 is more than happy running at around 75-80 degrees under load and if we go ahead and turn all of this stuff off, so if we stop our torture test, put that away, turn off Furmark you're going to see that idle temperatures are very very good as well. So like I said wouldn't recommend overclocking like this but if you have a case that is well ventilated in terms of just allowing passive airflow to go through it, you know heat does tend to rise a little bit, you can get away with very few fans so there's only a few fans. Look at here. Much quieter now that was that coil line from the graphics card before. So very few fans, 120 mil, sorry 140 mil here, 120 mil in the power supply and then that 120 mil directly on the video card and that's about it. I mean if you didn't have a video card and you had like a passive power supply like this X-Series one from Seasonic here, you could get away with just a single cooling fan blowing air towards that heatsink and that's about it. So guys that CPU is technically not 100% passive because I do have that nearby fan blowing air at it so I think that pretty much covers it. I think it's going to be a while before this settles down into an idle reading here but whatever you guys get the point. Thank you for checking out this update on my video blog and don't forget to subscribe to Linus Tech Tips. Oh yeah for those of you who are definitely going to ask that's the Fractal Design Arc MIDI case. Love it.