The CPU temperature rises excessively?
The CPU temperature rises excessively?
I recently purchased a new computer equipped with an Intel i7-14700K CPU. My previous model, an i7-8700K, overheated frequently, but this one maintains a stable temperature of 50-60 degrees during idle (5% load) and reaches the high 70s to high 80s while gaming (around 15-25% load). I've already performed maintenance tasks such as cleaning, applying better thermal paste, and re-seating the heat sink. I've also upgraded the heat sink beyond Intel's recommended size and lowered the CPU voltage in an attempt to reduce temperatures. Despite these efforts, the CPU consistently approaches its maximum temperature without consuming significant power, especially when idle at 86-89 degrees Celsius. There isn't much room for improvement with a larger heatsink, so I've added another fan and removed some components from the case. I'm uncertain about further adjustments.
When sharing a troubleshooting thread, it's standard to provide complete system details. List the specifications as follows:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
Include the PSU age along with its make and model.
BIOS version for your motherboard at this time.
CPU model is Intel i7-14700k, paired with a Thermalright Assassin Spirit cooler. The motherboard is GIGABYTE Z790 Gaming Plus AX. RAM includes G.Skill Flare X5, and storage uses a Samsung EVO 990 SSD/HDD. The GPU is RTX 4060, powered by a 650 Watt PSU, which has a 6-year lifespan. The chassis is Thermaltake Versa H21, running Windows 11 on an Acer monitor. The BIOS is F2 (included with the board).
Unless the room is really hot, the idle temperature is quite high. There are intake fans on the case; it doesn’t seem like a great airflow design, but with them it should work fine. Playing games at 14700K would normally see upper 70s in many titles, which isn’t necessarily concerning. Upper 80s shouldn’t be expected. Remember, usage percentage reflects core performance and doesn’t always show how well it’s working.
The selection of cases was unfortunately quite restricted, especially when it comes to excluding any hard drive or DVD/BluRay bays, which seems to be the current (unsettling) pattern.
I chose to skip the internal optical drive (using a USB BR drive) since I prefer better cooling over an optical drive, but I understand why. It seems there aren't many practical options with optical functionality left. Does this imply the cooler should be oriented from bottom to top instead of front to back? If that's the case, it should be flipped back to front to allow proper exhaust. From what I understand, in this scenario you'd likely have two fans for intake, one for exhaust (possibly the furthest rear fan could work), and a front-to-back cooler setup would be optimal.
Because hot air ascends by nature, and both intake ports are located at the lower part of the unit, it was intentional to aid this movement (the upper section of the case close to the vent becomes extremely warm when all the fans operate at maximum speed).
Fans go around naturally and you aim for maximum clean airflow. If you flip it front to back, I think the temperatures should get better a little.
I also realized you're using one tower cooler. That limits the cooling power compared to a dual tower setup. It's enough for gaming, but not for heavy workloads.
Adjust the voltage...
Watch: https://www.youtube.com/watch?v=LZA-h9yUV50
Note: And yes, I missed that earlier, the CPU cooler is really insufficient...
Do you possess the V2 model of the CPU cooler? This appears to be an unusual item considering the reverse fan design, which might affect airflow in your setup. Regardless, both versions are listed at the bottom for wattage on Tom's chart. It might be wise to upgrade to a more efficient cooler. Front-to-back cooling is generally optimal, though it’s less critical if the layout is front-to-top or middle-to-middle. Aim for the cleanest air reaching the CPU as quickly as possible and expel hot air directly. Avoid allowing air currents to cross or reverse direction, as this can create turbulence and leave behind hot spots.