Promise VSky H3970hDM, Product Manual

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Electrical Short or Overload
An electrical short or overload may cause a system not to boot.
Check for shorts and overloads by removing non-essential items such as extra controller cards. Keep only the
motherboard, power supply, memory and processor installed. If the system boots, it is possible there is a short
or overload with one of the components that you removed or one of those components is faulty. Replace each
of non-essential items one at a time until you isolate which one is causing the problem.
If the problem occurs even after removing the non-essential components, the problem has to be with the
motherboard, power supply, memory or processor.
Defective Components
Defective components, especially processor and memory, can cause a system not to boot up properly.
• Swap the memory modules with known good memory. In addition, test the suspected memory in another
known working system.
• Swap the processor with a known good processor. In addition, test the suspected processor in another
known working system.
System Used to Boot up and Now Does Not
Changes to your computer's configuration can cause your system to not boot properly.
New Processor or Additional Memory was Installed
If you upgraded the processor or added memory:
• Some processors require specific motherboard versions or specific BIOS revisions.
• Make sure the new processor is supported for your motherboard. To find the supported processor list for
your board, please contact your field representatives.
• Make sure the new memory modules are supported for your motherboard. To find the tested memory list
for your board, please contact your field representatives.
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