I don't have a iMac but I do have a macbook..... my airport card gets in that range when in heavy wireless use, 140-150F. So I don't think thats too abnormal...... assuming your actually using your wireless at this time.
I don't have a iMac but I do have a macbook..... my airport card gets in that range when in heavy wireless use, 140-150F. So I don't think thats too abnormal...... assuming your actually using your wireless at this time.