• Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!

v5 rail REALLY low...a fluke?

Overclockers is supported by our readers. When you click a link to make a purchase, we may earn a commission. Learn More.


Senior Member
Jun 21, 2002
According to MBM 5 my five volt rail is running at 3.15 volts. For refrence my 3.3 rail is running at 3.3 and my 12 rail is running at 11.67. I just thought i would download mbm to check up on voltages and i see this. Of course this is the same program that tells my my case temperature is 70 C but my actual hardware thermal sensor tells me that it is 25.3 C so i dont really trust these readings. The reason im worried is that i plan to upgrade soon to a fairly high end athelon setup and am worried aobut this PSU being able to power it. What i really want to know, is this a real reading or is it impossible for a CPU to run with that weak of a 5 rail. If this is a real reading, or could possibly be a real reading, how much trouble will it cause running, say a 2500+ stock, how about overclocking?

Iron Hawk

Jan 19, 2002
Groton, CT
well, MBM 5 is designed to read all sorts of different Motherboard sensors. MBM needs to be setup properly inorder for it to read correctly. Check MBM5's website for the proper settings.

What PSU and Mobo are you currently using?