If you have an old #motherboard stuck saying "Checking NVRAM..." (typically K5/K6/Pentium 1 or 2) there is no NVRAM chip, instead it is unable to write its own Flash BIOS to save data, because it exceeded the maximum number of writing allowed (yep, you used it 10,000 times) To solve this you need to order the AT29C010A, this Flash chip is erasable in 256-byte pages AND it can still be accessible to execute code. My first try was the AM29F010 but it doesn't work for this.