Help on IRQ and DMA

jjfalconerjjfalconer Member Posts: 8 ■□□□□□□□□□
Does anyone have an eassy way to remember IRQ and DMA settings?

I'm also having problems with CPU Sockets.


  • WebmasterWebmaster Admin Posts: 10,292 Admin
    Yes, use the second quiz on the following page, over and over, until you memorized them all:
  • GawdGawd Member Posts: 132
    Yea, Basically repetition is the only way. Except for IRQ you can remember odd to even, even to odd for com ports. COM 1 and 3 is IRQ 4 COM 2 and 4 is IRQ 3. and theres also a bit of a reversal pattern for the COM DMAs, Ive forgotten what the COM DMA's are exactly tho, are the 3EE8, 3FF8, 2EE8, 2FF8.. if thats them, then how I remembered was, 1 and 3 are the higher numbers ( 3 ), and the letters went from bottom to top if that makes sense. like 1 is E, 3 is F.. and its the same idea for COM 2 and 4. I might be confusing you, its hard to explain. lol. Also, for the LPT IRQ ports, which are 5 and 7 I believe( good chance im wrong, heh ).. it goes from LPT2 to LPT1, when you would think it would go in order.. LPT1 to LPT2.
    I think everyone has there own way of remembering things tho.

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