12/24/2023 0 Comments Pc case airflow diagram![]() ![]() With the case side on my graphics card fan runs at full speed and temps are around 90☌ and hard disks near 50☌. I have heard that this is not recommended but I assure you that it works in my case. My temporary solution is to keep the side off the case. My hard disk temps creep up to between 40☌ and 50☌. This area gets very warm during heavy GPU workload. The red exclamation mark represents the problem area. ![]() The air blown out of the back fights directly against the air blown in by the new fan. It brings in air from the bottom and blows it out the front and back. ![]() The problem I have is that when my graphics card starts working hard, the way it is designed destroys this airflow. This worked a treat: From my attached diagram you can see the airflow this creates in the case. A few months back I installed a fan on the front of my PC to improve airflow generally as the hard disks were getting too hot. I have a Geforce 580 gtx graphics card in my computer. Key: Yellow arrow: fan airflow direction, Orange arrow: GPU exhaust, Blue square: fan. I did look through the list of stack sites and this site seemed to be the best (Computer enthusiasts). If you’re keen on testing that out, check out our best case fans list for some suggestions.Apologies if this is the wrong place for hardware questions. For example: is a two degrees Celsius drop in GPU temperatures worth the four or five intake fans you might need to buy? Only you can answer that question. You can bring temperatures down further with more fans, but you have to decide how much you’re willing to spend. If not, consider an extra intake fan or rear-mounted exhaust fan, depending on how many front fans your case supports. If satisfied, you can move on and spend your money elsewhere. Start with three fans and see how your temperatures are. Secondly, the two-intake, one-exhaust setup seems to be the best middle ground for case fans. So even if you’re on a tight budget, try to install an exhaust fan at least. Both LTT and Tech YES City recorded their most significant CPU and GPU temperature drops when moving from zero fans to a single exhaust (and intake fan, in LTT’s case). So now that we’ve looked at a bunch of numbers, there are a couple of core takeaways that can help answer the question, “how many fans should a PC have?”.įirstly, any fans are better than no fans. This might have something to do with that significant plateau in GPU temperatures between the single-exhaust and the four-intake, one-exhaust setups. It’s worth noting that the InWin 103 has relatively restricted side intakes and isn’t a “traditional” airflow case. After that, it takes four intake fans to see a single degree reduction, with another degree Celsius drop once all five intake fans are running arguably not an effective way to spend your money. GPU temperatures are similar in that the biggest improvement is from no fans (84 degrees Celsius) to a single exhaust fan (78 degrees Celsius). ![]()
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