Best direction for cpu fan
Best direction for cpu fan
I acquired a Dell OptiPlex 7010 with an i5 processor that runs with the built-in cooler, maintaining a stable temperature. For the 1060 model, I plan to install a cooler to reduce CPU noise, but I’m curious about how placement affects GPU temperatures. Should it be oriented upward to draw heat from the bottom toward the PSU, or should it face sides and spread out behind the case?
Unless you have a very odd case configuration, typically the best is for the cpu fan to be blowing towards the back of the case. You may also need to install/upgrade any front intake fans, and same for your exhaust fan. It may be that heat is building up inside the case, which would be helped by good front intake and rear exhaust.
Completely avoid letting the CPU cooler rely on the GPU card's heat. Keep it consistently from front to back through the CPU cooler, then exit via the rear exhaust fan. For GPU-related heat issues, consider adding fans to your existing case or choosing a case that fits your motherboard and supports extra case fans. Two intake and two exhaust fans are generally acceptable today for maintaining good temperatures.
The only front has a grill without any fans. What's the cheapest option with decent airflow or modifications I could make to the existing case, leaving out the side panel? Since I can't see the case, there might already be spots to mount fans—though it probably isn't included, but it could have holes for them. Any idea how to remove the front grill and maybe take a photo? Probably worth upgrading if you can afford it.
Actually, taking a picture of the motherboard layout inside the case, the top of the case, the front of the case and the bottom inside of the case would be helpful. William is right, if that is a proprietary Dell motherboard, it's probably not going to fit a standard ATX or micro-ATX form factor case.
Of course, anything CAN be done, with enough modification, but adding cooling to the existing case it probably the easiest and cheapest recipe for solving your thermal issues. In fact, simply popping a hole in the side panel somewhere depending on the internal configuration, and mounting a fan there along with a cheap grill cover might be all it really needs.
I've done some pretty in depth modifications to those old style cases, and they CAN be made to flow a lot better than they do by design, but it's also going to require some time, patience and tools to do it. If you don't have, or have access to, either a dremel tool, 1.4" die grinder with a cutoff wheel, very large bi-metal holesaw or a really good jigsaw with a new blade, plus a drill and bits, and probably some sandpaper and spray paint, then it's going to be near impossible to do a good job. If you have any one of those tools though, it can be done.
Typical issues with later ATX Dells include non-standard wiring and pin configurations on the front panel and power switch, along with custom diagnostic LEDs. The Optiplexes were primarily office computers, while GPUs were added only minimally. Older BTX models featured a single large intake fan that pressurized the entire system, requiring vents to direct airflow as needed.
If you clarify the exact size of the Opti 7010 we can locate images of it. Tower MT, Desktop DT, Small Form factor SFF, or God help us all the dreaded USFF Ultra Small etc. etc.