NVRAM

ally_uk

Hi there

I was working on a machine yesterday and I encountered a annoyance

The machine would POST and would freeze on the checking NVRAM section
from this stage the machine was useless I couldn't boot or even get into the BIOS

So I tried changing the RAM with perfectly working RAM which has been memtested
I eliminated faulty RAM slots out of the equation.

Next I cleared the CMOS by taking the battery out and resetting the jumper

Next I changed the CMOS battery with a new one

I then changed the Power Supply to eliminate a power issue

After all this I am still stuck

I think the main culprit would be the motherboard

Any ideas guys?

malcybood

Swap the HDD into a different machine, if it works in the other machine and you have eliminated RAM then it would point to the board.

JDMurray

Assuming you have new RAM and PSU installed , check if the motherboard will successfully POST without any peripherals connected to it (video and RAM installed only). If it hangs during the POST with no error code or beeps, try reflashing the BIOS. If it still doesn't POST, turn off all integrated motherboard devices, such as sound, Ethernet, serial and parallel ports, RAID, etc. If all that doesn't work, your only option is to swap out the CPU with a known good CPU, or assume that the NVRAM soldered on to the motherboard is likely bad (or fried). When ready, start reading the reviews at www.motherboards.org to pick your next mobo.