MacPro 1,1 Random error, memory related?

Discussion in 'Mac Pro' started by ThirteenXIII, Jul 7, 2008.

  1. ThirteenXIII macrumors 6502a

    Mar 8, 2008
    I have a 1st Generation MacPro 2.66ghz Quad with 3GB of memory (4x512mb CTO) plus an additional 2x512mb

    RISER CARD A: 4x512 (2xfactory & 2xOther Apple Memory)

    RISER CARD B: 2x512 (Factory)

    Sometimes the top riser card will flash a red light (solid) i then pulled the ram and sometimes it will still show a solid red light and when i pulled them switched them it would appear then disapper on occasion

    i ran the apple ahrdware test a few times in loop mode; here is the only error i got:

    4MEM/42/40000001: B: 1 C: 1 R:0

    all the sticks of ram were from Apple, the additional sticks of ram i purchased from a friend who was upgrading his macpro and they were working flawlessly since October 2007 (macpro was purchased in feb 2007)

    I recently relocated and started right when i first got my new location set up, nothing was damaged in the transfer as far as i know the macpro was solidly packed as if it were originally sent and nothing on it or bumped into it.

    im not sure if its a riser card or memory.

    upon apple hardware tests it does detect all 3gb of memory but gives methat random error.

    ive only had 3 BSODS and 2 Kernal panics since ive had this machine.

    anytips or help would be appreciated

  2. matt321 macrumors member

    Oct 27, 2007
    Have you moved switched the riser cards around? This may rule out if you have a bad riser card or if it's the port on the main board.

    Also, you might try and run the hardware test with only a single pair in Riser A, testing each pair one at a time to find what RAM is giving you problems.

Share This Page