12900KS 88C Ambient Edition
12900KS 88C Ambient Edition
It seems like you're running at a low or maximum capacity. Think about what comes next—take off the cooling block from the CPU and inspect the connection. Also, the screws on the cooling block might be tight because they weren't installed correctly.
Make sure you selected the appropriate standoffs. The guide specifies two options—Intel models require a particular type, and the manual mentions using the ones with indents. Confirm the details match before proceeding.
I’m working with the round cylinders, not the one you highlighted, and the height matches correctly. Verified by inserting the pump head bracket through the screws and positioning the stand-off on the board—it fits perfectly. As Jurrunion mentioned, the connection works smoothly, the thermal paste is spread evenly over both the IHS and the pump contact plate. The screws hold well and spin freely until fully tightened (but not overly). After a power reset, everything functions as expected.
I attempted a full power cycle and the BIOS still displayed temperatures between 88–89°C, automatically shutting down once it reached 90°C (occasionally). Once I disconnected the pump head from the IHS, the laser thermometer measured both the IHS and pump head at 65°C or lower. During this period, the BIOS reported 88–90°C, but the actual readings stayed below that. Later, after updating the BIOS, the temperature dropped to 78°C, then stabilized around 88°C once the AIO was reinstalled.
During testing with the laser thermometer detached, the CPU reached 65°C quickly, triggering a “CPU Temperature Warning” and causing an automatic shutdown—despite the IHS reading 64°C. This inconsistency between readings remains puzzling.
Could you clarify why the BIOS and the thermometer disagree so much? Also, when the cooler was removed, the BIOS showed 79°C and failed to boot; with it back on, the CPU temperature (measured by laser) stayed below 65°C. Any insight would be greatly appreciated.
Thanks for your support.