Memory Flashcards
What does SO-DIMM stand for and where are they normally used?
Small Outline Dual Inline Memory Module. Used mostly in notebooks.
What does SRAM stand for and what is it used for?
Static RAM (Random Access Memory). Used for caches (L1, L2, L3)
What makes SDRAM “synchronous”?
It is synced directly with the CPU clock.
Why is DDR SDRAM faster than SDR SDRAM?
DDR syncs with the up and down ticks of the CPU clock, processing twice as much data.
If parity checks for errors, what does it NOT do?
It does not correct errors.
What kind of errors does parity data help detect?
Single bit errors, but not multiple bit errors.
Name two advantages of buffered/registered memory:
Less electrical load to MCH, allows for more memory capacity in servers.
Other than CDs and DVDs, where will you find ROM?
BIOS.
What kind of ROM is being used when performing a flash BIOS upgrade.
EEPROM
What does EEPROM stand for?
Electrically Erasable Programmable Read-Only Memory
Where does the page file live in Windows?
C:\pagefile.sys (root)
Since virtual memory is stored on the hard drive, can it be accessed through the user interface?
No. It must be loaded back into RAM.
What does ECC stand for and what does it do?
Error Checking and Correction (or Error Correction Code).
Compared to parity data, what does ECC do?
It detects single and multiple bit errors, and corrects single bit errors.
How is it determined how many bits a memory bank holds?
Bandwidth of front side bus and memory bus. (or system bus)
