kevinc313I've got mine as top mount intake with push pull fans. Works ok, but I feel like it could run a bit cooler. About 55C at about 350w-400w gaming load, 60C at max power ~435w average 485w peak Furmark. I'm questioning if it pulling in warm exhaust air from the back of the pc or heatsoaking from the MB vrm. Can't fit my new CLC280 cpu aio at the top in a new Lian Li lancool mesh, have it front mount tubes down.
Keep in mind if you're ordering a Hybrid card: the tubing is 400mm in length, and the radiator + fan combo is about 56mm thick; Hybrid card radiator exhaust can be in excess of 34-38C air, having it setup as intake is not recommended even in a CPU AIO/GPU AIO setup, as unless you have a very high core count CPU that puts out more than 400W of heat, the GPU radiator will always be the hotter of the two.
Draslay31Good morning you beautiful people! I am waiting for my yet to be purchased 3080 FTW3 Ultra Hybrid card and am starting to look at what i need to do in order for the card to fit. I currently have an EVGA 280 AIO installed at the top as recommended per the manual. So looking at my build; even with using my Phanteks Enthoo Primo (which is a liquid builders dream case) i do NOT have room on the top to place the 3080 FTW3 Ultra Hybrid card radiator and fans,.... Mounting in the front also does not seem like an option due to the radiator tubes being somehwat short (which is actually a good thing to help fight liquid diminishing over time), mounting at the bottom is asking for early pump failure and all sorts of issues, which brings me to my question: @EVGA: Where would be the best and/or second best radiator installation recommendation if one of your products (EVGA 280 AIO) has already been installed at the top per manual recommendation, please?? I hope this can be answered and also may help some other people out there that may run into this dilemma :) Thank you all for your time and help! Have an amazing rest of your day! Claudio
Dabadger84 So if at all possible, setup the GPU radiator as exhaust
Rbk_3kevinc313I've got mine as top mount intake with push pull fans. Works ok, but I feel like it could run a bit cooler. About 55C at about 350w-400w gaming load, 60C at max power ~435w average 485w peak Furmark. I'm questioning if it pulling in warm exhaust air from the back of the pc or heatsoaking from the MB vrm. Can't fit my new CLC280 cpu aio at the top in a new Lian Li lancool mesh, have it front mount tubes down.I don’t know about your set up, but I had mine set up as top exhaust and the biggest factor on decreasing temperatures was taking off my top dust filter. I dropped 4-5C by doing that and it isn’t a huge deal as it exhausting anyway.
kevinc313Dabadger84So if at all possible, setup the GPU radiator as exhaustGreat plan to keep your GPU toasty warm. Meanwhile with top mount intake..... https://www.3dmark.com/spy/16605955
Dabadger84So if at all possible, setup the GPU radiator as exhaust
kevinc313Mind you, even without a duct it's way better than a top mount exhaust. That's just dumb. There's no way a rad fan is spitting out 38C air, unless you're hammering the GPU with the fans turned down and the coolant gets super hot. I'd need a thermometer probe to test though.
Dabadger84kevinc313Dabadger84So if at all possible, setup the GPU radiator as exhaustGreat plan to keep your GPU toasty warm. Meanwhile with top mount intake..... https://www.3dmark.com/spy/16605955 kevinc313Mind you, even without a duct it's way better than a top mount exhaust. That's just dumb. There's no way a rad fan is spitting out 38C air, unless you're hammering the GPU with the fans turned down and the coolant gets super hot. I'd need a thermometer probe to test though. I am using thermocouples to measure it, that measurement is accurate. 34-41C (the highest I've seen) is how warm the exhaust air gets during Cyberpunk 2077 sessions with 70-72F ambient temps with the GPU radiator setup as exhaust in a high-airflow case. And that's with the eVGA fans ramping up to ~2400RPM & EK Vardars on exhaust at ~1800RPM.It's a 240mm radiator trying to deal with 400-500W of heat dissipation, it's going to run warm, you could tell that by touching it when it's under load.That'd be like trying to run an overclocked Threadripper on a 240mm radiator... not gonna work out too well in terms of how warm the air coming out of the rad will be.On a 3080, it would be slightly lower, but not by a lot, my numbers are coming from a Hybrid 3090 running an OC/Undervolt at 2040MHz @ 1000mV, and I'm seeing those exhaust temps as measured by a thermocouple in the exhaust-air path of the GPU radiator, that connects to my motherboard & gives a temperature readout, which is the temp I use to control the GPU radiator fans.My maximum load temp is in the 52-57C range depending on what clocks I'm running & how warm my ambient is because it's winter and all.What kind of whacky setup did you have for 23C average temp on that test, is that an error on the part of 3Dmark's reporting software, or what, because there's no way that's just on the Hybrid with nothing special going on, literally impossible unless your ambient is arctic air. Edit: one should also keep in mind, the GPU block & radiator aren't just cooling the GPU core, they're also removing heat from the vRAM with the copper plate that connects to the edges of the GPU block - that's another part of the reason why the GPU die temp doesn't directly translate by itself to GPU radiator exhaust air temps. GDDR6X runs pretty warm.
kevinc313Only reason you're measuring those exhaust temps is because you're putting the warm air from the MB and CPU AIO through it. The delta-T is more like 10C. My system (MB system temp) idles at 30C and gets up to 40C with the hybrid rad blowing over the MB at 400W+ board power. That's with the GPU idling at 22C. Try measuring in free air. I'm running my rad fans intake at max speed now, at idle. 21C idle gpu, 27C system temp. After running at high power, then returning to idle, the GPU will typically be in the high 30's, which is a good indicator of the coolant temp since it's thermal mass is far higher than the GPU chip itself or the ~10W heat load of the GPU chip at idle. Thus the coolant temp is rising by about 15C at high power, when the rad is fed plenty of fresh ambient air with fast push pull fans. If the coolant is about 37C, there is no way the air dumping into the case is any higher than the low 30C's, worst case scenario, probably more like the high 20's with fast push pull fans. Not a problem unless you're running your CPU at very high power levels, in that case you should tune your system accordingly. 23C is with the PC more or less outside with ambient air around 0C. Maybe like -3C since it idles 2C above ambient with max fans and it was idling at -1C after cooldown. That's #5 in the US for a 3080 in Timespy GPU, btw.
kevinc313Its all those silly rgb fans driving up your temps.
Dabadger84kevinc313Its all those silly rgb fans driving up your temps.lol - you lost all credibility you might've had with that one. That makes zero difference with the amount of airflow in my case, temps do not change if the RGB is on or off, nor do temps change in any meaningful way if the radiators are NOT in the case.You just refuse to accept that having the GPU radiator as intake is a bad idea for the vast majority of people, I get it, but when you see the exhaust temps for yourself, maybe you'll wise up. For people in regular cases, in regular use, with no special nothing, it's going to be much better for their system, if they only have room to mount one rad at the front & one up top, to have CPU as intake, and GPU as exhaust, unless their CPU actually draws more wattage than their GPU. Period. The CPU being intake is NOT going to raise temps enough to significantly effect your GPU clocks, because a CPU does not put out as much heat, and thereby does not heat up the radiator as much, as a GPU does. This would also be evident in coolant temp I'd wager, but I don't have any way of checking that.I also literally just told you earlier in the thread my internal chipset/RAM/etc temps are within 1-3C of ambient air outside the case... so the fans having RGB on is definitely not a serious issue lol I'm not going to keep arguing the point when I know I'm right & you're mistaken, there is literally no point in arguing with someone that doesn't agree that intaking 34-41C air in to your case as opposed to the exhaust from a CPU radiator, which is going to be much MUCH cooler 99% of the time, is the better of the two options. If your motherboard has temp readouts for them, check your CPU VRM temperatures next time you're running full boar on your GPU, with that air being vented right on to them I'm sure they're nice & toasty. That would also effect your RAM stability if you had B-Die chips that were OCed at all on your RAM, since B-Die typically loses stability once it goes above about 35C when running high clocks or super-tight timings... yet another reason having a GPU radiator as intake would be a bad idea especially for people trying to really push their system.
whisperingshadowGpu top exhaust and cpu side exhaust. Gpu definitely exhaust much much hotter air, side or top mounted.(i tried both).
Dabadger84kevinc313Its all those silly rgb fans driving up your temps.lol - you lost all credibility you might've had with that one. That makes zero difference with the amount of airflow in my case, temps do not change if the RGB is on or off, nor do temps change in any meaningful way if the radiators are NOT in the case.