i have both router idling at the same place now (~11c) r7800 is around 39c and the wrt3200 is around ~65(active router but not doing much atm 0.00, 0.00, 0.01)
the 65c is cpu from what i gathered after som googling, the rest is wifi/ddr
how is it possible that it differs ~25c?
EDIT: it is what it is, found lots of threads on dd-wrt forum and generally consensus is, leave it or fan it
EDIT2: found a usb fan when digging around in the garage, found a pretty small usb fan, 40mm if i where to guess, just that fan lowered cpu temp with roughly ~17c, 48c now
after i added fan i stresstested a bit, last bit on the screenshot is idle (fairly) and the 65 was also idle before adding fan