68 lines
3.2 KiB
Plaintext
68 lines
3.2 KiB
Plaintext
__________________________________________________________________________
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STACKER NOTE Stac Electronics Technical Note
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Subject: Stacker coprocessor installation checklist.
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Tech008 - 2/20/92
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Page 1 of 1
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__________________________________________________________________________
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This note provides a checklist for troubleshooting the Stacker version 1.x
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(8 bit) coprocessor, and the Stacker 2.0 XT/8 (8 bit) and AT/16 (16 bit)
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coprocessor cards.
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Symptoms:
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A Stacker coprocessor installation exhibiting the following symptoms will merit
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further investigation:
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1. During Install, the coprocessor may fail to respond at all the addresses.
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2. The Stacker.com message: <Coprocessor card not functioning. Invoking
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software driver> may appear at boot time.
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Solution:
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First check the basics.
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1. Check to ensure the card is properly seated in the slot.
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2. Check to ensure the /B parameter in the Stacker driver contains a valid
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address. Possible base addresses are listed in the 2.0 manual pgs. 43-47
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and on page 17 in the version 1 manual.
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3. Run Install to test all addresses.
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4. Try adding each address to the driver in Config.sys and COLD BOOT (Reset
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or a power down/up). A cold boot is necessary to flush addresses.
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5. Try a different slot.
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6. Try rearranging the order of the cards in the expansion slots.
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7. Try disabling SHADOW RAM (Scratch RAM) if present. This is done in the
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BIOS setup at boot time or on some memory manager device lines in
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Config.sys.
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8. If possible, try the card in a 2nd machine to see if the problem is with
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the card itself.
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Card specific issues:
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*XT/8: or a Stacker version 1 coprocessor card,
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1. Check for address conflicts with a memory management program. Fixing
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this problem usually involves adding memory exclude statements to the
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memory management driver. Try starting with the range C400-DFFF to
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enable the testing of all possible addresses during Install.
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2. If the XT/8 card is in a 386 machine, it may be that the motherboard
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maps memory over the addresses that Stacker uses to access the card.
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Refer to your system user's guide for more information.
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3. Version 1.11 or prior with 16 bit VGA card, there may be a conflict
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between the VGA card and the coprocessor. Test the card with the VGA
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card set to 8 bit mode. If this eliminates the conflict, call STAC
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technical support.
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*AT/16
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1. Something (usually another add-in card) is conflicting with the address
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of your AT/16 card. Check the hardware addresses for your other cards
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or change the hardware address for the AT/16 card.
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2. The buss speed may be greater than 8 Mhz. This value can sometimes be
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set in the BIOS. It is usually set as the clock speed (CLK) divided by
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some number. Try setting the speed to 8 Mhz or less to test. If buss
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speed is the issue, call STAC technical support.
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*MC/16
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1. You must install and configure the MC/16 card before installing Stacker.
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_________________________________________________________________________________
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1992 STAC ELECTRONICS
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