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expatriotsailor

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20 years ago

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December 7th, 2006 23:00

Memory Problem After Flashing BIOS

I salvaged an old Dimension L433c from work containing no memory or hard drive. I bought two used 256 meg sticks and a new Western Digital HD. The machine booted, but it was making strange noises and the clock was stuck (even if I changed it in the BIOS and left setup on screen, the clock didn't change), but aside from that the machine seemed to run fine. I downloaded the A05 BIOS (old one was A02) and flashed it and that's when the fun started.

The first time I rebooted, I got an error message saying "reduction in RAM." When I tried to reboot again, it only showed 4 meg, and that happened through several reboots. W2K obviously wouldn't start. After several reboots, it stopped even booting.

If I use only one stick, and it doesn't seem to matter which one or which slot I place it in, aside from several beeps, the machine boots and seems to run fine. Can someone suggest what the problem might be. I would like to use all 512 meg. For what it's worth, one is CL2 and the other is CL3.

Thanks for any help.
  • Majestic

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    Posted December 8th, 2006 11:00

    The fact that you have problems with the clock, that it is an older machine which may have been sitting for a while in storage, I would first replace the motherboard battery.  A failed battery can not only cause problems with the time and date, but also create hardware detection problems.  A new 3-Volt, CR2032, coin cell battery can be purchased for around $3 (US) and is available at any Radio Shack, computer stores and most discount stores like Wal-Mart.  When replacing the battery I would also suggest doing a "hard" reset of the NVRAM by following the procedure I have listed below.  By clearing the NVRAM the system will redetect all the installed hardware and resolve any conflicts that may have occurred between the new BIOS version and the hardware information stored in the NVRAM.
     
    With the machine unplugged from the wall remove the battery from the motherboard.  Then with the machine still unplugged press the On button for 30 seconds to dissipate any remaining electrical charge on the motherboard.  Then re-install the battery, plug the machine back into the wall and see if it will boot normally.
     
    If the new battery doesn't resolve the problem with the newly installed memory then there maybe a problem with mixing CL2 & CL3 modules.  According to Crucial's web site, they recommend CL3 for your system.  You can click here for that information. 
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    Posted December 8th, 2006 19:00

    Thanks for your help.  I replaced the battery as a first step, and did a hard reset, but still no go.  Any other suggestions?  Thank you.
  • Majestic

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    Posted December 9th, 2006 11:00

    You mentioned in your first posting that the system will emit several beeps when starting up.  The beeps maybe an error code so take notice of them.  If you're getting 1 to 3 beeps on start up then that would indicate a problem with the memory.  You can click here for a full listing of the error codes from the on-line User Guide for the Dimension Lxxc.
     
    Other than what I mentioned above, my only other suggestion would be to try another set of memory modules in the system.  The older Dell systems were a little finicky when it came to memory upgrades depending on the RAM manufacturer.  That's why you will see Crucial memory being recommended so often in the various forums here as their product was guaranteed to work and it did.

    Message Edited by Majestic on 12-09-200607:20 AM

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    Posted December 10th, 2006 16:00

    Thank you for your help. I have tested both sticks of memory using memtest and it reports no errors.

    When I use the CL3 in slot 1 and CL2 in slot 2, the machine boots reports a memory reduction to either 12 meg (rare) or 4 meg (common) instead of 512 meg.

    When I use the CL3 in slot 1 and CL2 in slot 2, the BIOS won't even load. I am going to try and trade my CL2 stick for another CL 3 stick, but I am not optimistic I can do it -- I bought them from a shop that strips out old machines and sells the parts.

    Any other ideas?
  • Majestic

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    Posted December 11th, 2006 12:00

    Sorry, at this point the only thing I can suggest is swapping the CL2 for a stick of CL3 as you are intending to do.  Also make sure the computer shop is giving you low density memory.  The older Dell systems can not use high density modules.