walker@sulu.usc.edu (Walker J. Seestedt) (06/12/91)
Hi everybody, Recently, in the interest of getting more memory into our SGI Personal IRIS 4D/20, we have purchased some third party memory from Kingston Technology Corp. Since the existing 8 meg is in the form of 1 meg simms, and the Kingston memory is in the form of 4 meg simms, we must discard the old memory for the new. We have 24 meg that we want to install, however no matter what configuration I place the simms the machine refuses to boot (or even go through power on diagnostics.) I have tried nearly every memory configuration I can think of, but to no avail. Kingston doesn't really know what configuration they should be and told me to try different combinations. Big help. So, if any of you guru's out there have managed to get 4 meg simms configured into a Personal Iris, PLEASE let me know how they should go in! Thanks, Walker -- Walker J. Seestedt. USC Aerospace Engineering (213) 740-4303. Dod #0081 Internet: walker@spock.usc.edu | Uucp: ...uunet!usc!spock!walker Bitnet: swalker@uscvm.bitnet Standard disclaimers apply. Internal use only. Violators will be persecuted.
scfisher@oasys.dt.navy.mil (Fisher) (06/12/91)
In article <33517@usc.edu> walker@sulu.usc.edu (Walker J. Seestedt) writes: |>Recently, in the interest of getting more memory into our SGI Personal |>IRIS 4D/20, we have purchased some third party memory from Kingston |>Technology Corp. Since the existing 8 meg is in the form of 1 meg |>simms, and the Kingston memory is in the form of 4 meg simms, we must |>discard the old memory for the new. We have 24 meg that we want to |>install, however no matter what configuration I place the simms the machine |>refuses to boot (or even go through power on diagnostics.) I have tried |>nearly every memory configuration I can think of, but to no avail. Kingston |>doesn't really know what configuration they should be and told me to try |>different combinations. Big help. So, if any of you guru's out there |>have managed to get 4 meg simms configured into a Personal Iris, PLEASE |>let me know how they should go in! You have to add in four SIMMs at a time. With 4Mb SIMMs, you can have 16Mb, 32Mb, 48Mb, and 64Mb, but not 24Mb. Your 8Mb 1 Meg SIMMs originally looked like this: ------ ------ ------ ------ xxxxxx xxxxxx xxxxxx xxxxxx ------ ------ ------ ------ xxxxxx xxxxxx xxxxxx xxxxxx You would use the same layout for 32Mb using 4 meg SIMMS. For 16Mb using 4 meg SIMMs: ------ ------ ------ ------ ------ ------ xxxxxx xxxxxx ------ ------ ------ ------ ------ ------ xxxxxx xxxxxx And for 48Mb, you would use: ------ ------ xxxxxx xxxxxx xxxxxx xxxxxx xxxxxx xxxxxx ------ ------ xxxxxx xxxxxx xxxxxx xxxxxx xxxxxx xxxxxx BTW, I think I remember hearing that the early 4D-20's wouldn't work with the 4 meg SIMMs. Anyone remember? -steve
hilchey@ucs.ubc.ca (Paul Hilchey) (06/13/91)
In article <8382@oasys.dt.navy.mil>, scfisher@oasys.dt.navy.mil (Fisher) writes: |> In article <33517@usc.edu> walker@sulu.usc.edu (Walker J. Seestedt) writes: |> |> |>Recently, in the interest of getting more memory into our SGI Personal |> |>IRIS 4D/20, we have purchased some third party memory from Kingston |> |>Technology Corp. |> |> BTW, I think I remember hearing that the early 4D-20's wouldn't work |> with the 4 meg SIMMs. Anyone remember? I was looking into this not long ago, and the answer I got was that "Most 4 megs simms don't work, but there are one or two that do. Be sure to get a brand that is known to work." The source for this was a salesman at Andataco who didn't elaborate as to which brands work.