Guide. An iron test checks the amount of iron in the blood to see how well iron is metabolized in the body. Iron (Fe) is a mineral needed for hemoglobin, the protein in red blood cells that carries oxygen. Iron is also needed for energy, good muscle and organ function.
The following errors are the most common symptoms of faulty (or failing) computer memory modules: 1  Computer memory errors. 2  These include system computer memory errors, or blue screen system crashes that reference memory read/write, parity, interrupt, address, page faults, general protection faults or mismatch errors.
8 Signs Your PC Might Be a Zombie. 1. Your computerâs performance is noticeably slower, even when you donât have many applications open. Criminals want your computer to carry out illegal actions, and those actions require the use of your computerâs processor and network.