MBP running on one fan?

I ended popping my MBP open to clean the dust out, fans, etc. for the first time since my warranty has been out for well over a year now, and when putting back the right fan (near hard drive) I ended up breaking the female-connector on the logic board. I figured I might get to soldering it back some time in the future, but till then I just left the fan in there with the wire detached for just the right fan.

Now, according to smcFanControl (Active Setting: Default), the left fan is running around 3510-3520 rpm while the right one at 0 rpm. My average temperature, according to smcFanControl, ranges between 100-150°F. I am just using Safari, Mail, and MS Word (since I am afraid of opening any strenuous apps, such as games).

Are the temperatures normal, even for only 1 fan being active? Am I putting my MBP at any "serious" risk? Should I go out and by a new logic board, or solder the connection back? Any help will be appreciated. Thank you.

Specs: MacBook Pro 15" Unibody Mid 2010, 2.66 GHz Intel Core i7 Processor, 500GB SATA Disk Hard Drive, 4 GB 1067 MHz DDR3, Intel HD Graphics 288 MB, Mac OS X Lion 10.7.3-131.76GB free out of 398.49GB, BootCamp:Windows 7: Ultimate (64-Bit)-39.63GB free out of 100.76GB.