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Upgrade. PARITY or NON-PARITY?

Discussion in 'Hardware' started by Minga, Oct 28, 2002.

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  1. Minga

    Minga Thread Starter

    Joined:
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    Hi.
    My current RAM is 2x 62Mb PC100 SDRAM, 3.3V, TSOP package and the manual for my laptop says 100MHz+ in either 32, Mb or 128Mb modules to a max of 256Mb.
    I want to upgrade with two 128 modules but I am not sure about the following:
    1. Is there any point me getting PC133, or will it just run at 100MHz still?
    2. I have found some RAM on Dabs.com which sounds fine, but they are all NON-PARITY. I wasn't sure what mine was (it isn't in the manual) so I looked on Download.com's memory feature and they say that when you look at the RAM, if the number of chips is divisible by 3 or 5 then it is NON-PARITY, otherwise PARITY (or ECC, whatever). If by chips they mean the large black rectangular things, then I only have 4. Does this mean I can't use NON-PARITY?
     
  2. Jeerajat

    Jeerajat

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  3. spaceman_333

    spaceman_333

    Joined:
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    Hi Minga,

    I would go with PC100 as that is all your laptop will support.
    Non-parity is faster than parity.

    Spaceman
     
  4. Minga

    Minga Thread Starter

    Joined:
    Oct 23, 2002
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    Thanks, but TIME Computers are awful when it comes to their web-site. I can't even find an email address. It is all done by phone, and isn't cheap either.
    I checked out Jeerajat's site and had a look in the BIOS to turn off parity checking, but there is no such option? Does this mean I don't have parity RAM? If so, that means Download.com were wrong about identifying RAM. Is that likely, anyone?
    Also, Spaceman - could you give me little more information on the speed side of things. Jeerajat's site looked quite pro and indicated no such differences in speed.
     
  5. spaceman_333

    spaceman_333

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    That, too, is highly technical as neither you nor I would be able to tell the difference.

    sm
     
  6. geralds

    geralds

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  7. Minga

    Minga Thread Starter

    Joined:
    Oct 23, 2002
    Messages:
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    Thanks Geralds for that. Good link. Unfortunately they didn't have my computer (or any near it) but they all seem to be non-parity RAM so I'll chance it, and assume mine is also non-parity. Cheers everyone, I'll let you know how I get on with the new RAM when it arrives.:)
     
  8. JohnWill

    JohnWill Retired Moderator

    Joined:
    Oct 19, 2002
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    Most laptops are non-parity, this is an attempt to save the 12% extra power that the 9th bit for each byte would consume.
     
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