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id_the_mad
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« on: April 28, 2003, 02:03:12 AM »

PLEASE SUPPLY RELEVANT INFORMATION:
Operating System Version:WinXP Home on Compaq and XPpro on self-assembled
Problem Application Name & Version:
Problem Hardware Make & Model:Compaq presario 5000, the other has athlon 1.1ghz with 768mb RAM
Error Messages:n/a

ok, the first problem i have is with the compaq. recently, i had decided to install new memory (it wasn't certified compatible). i removed the 2-128mb sdram chips that was originally installed and added 3-256 mb sdram chips. after that, the pc would not start. somehow, i tried starting the pc today and it came on, but the monitor would not work nor would it shut down using the power button. i had tried earlier removing and putting back the CMOS battery on the advice of a friend, but that didn't help. as of now, the compaq has its original memory in place, and starts up, but the rest of the pc doesn't seem functional. any help?

the second problem is somewhat simpler. i was playing age of wonders 2, and i had to turn off the main power immediately by turning off the power strip it was connected to. after that, the pc would not start. any ideas?

any help will be greatly appreciated. thanks.  

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Doctor Smith
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« Reply #1 on: April 29, 2003, 12:37:23 PM »

Power Supply Troubleshooting
Troubleshooting the power supply basically means isolating the supply as the cause of problems
within a system and, if necessary, replacing it.
Caution
It is rarely recommended that an inexperienced user open a power supply to make repairs because of the dangerous high voltages present. Even when unplugged, power supplies can retain dangerous voltage and must be discharged (like a
Power Supply Troubleshooting 1145
monitor) before service. Such internal repairs are beyond the scope of this book and are specifically not recommended
unless the technician knows what he or she is doing.
Many symptoms lead me to suspect that the power supply in a system is failing. This can sometimes
be difficult for an inexperienced technician to see because, at times little connection seems to exist
between the symptom and the cause
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Doctor Smith
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« Reply #2 on: April 29, 2003, 12:45:55 PM »

Follow these steps if you are still encountering memory errors

1. Restart the system and enter the BIOS Setup. Under a menu usually called Advanced or Chipset
Setup might be memory timing parameters. Select BIOS or Setup defaults, which are usually the
slowest settings. Save the settings, reboot, and retest. If the problem has been solved, improper BIOS settings were the problem.
If the problem remains, you likely do have defective memory, so continue to the next step.
The System Logical Memory Layout 459
2. Open the system for physical access to the SIMM/DIMMs on the motherboard. Identify the
bank arrangement in the system. For example, Pentium systems use 64-bit banks, which means
two 72-pin SIMMs or one 168-pin DIMM per bank. Using the manual or the legend silkscreened
on the motherboard, identify which SIMMs or DIMM correspond to which bank. Most
Pentium boards that use SIMMs have four, six, or eight total SIMMs installed in two, three, or
four banks. Most boards using DIMMs have two, three, or four total DIMMs, each of which represents
a single bank.
3. Remove all the memory except the first bank, and retest. If the problem remains with all but the first bank removed, the problem has been isolated to the first bank, which must be replaced.
4. Replace the memory in the first bank, preferably with known good spare modules, but you can
also swap in others that you have removed and retest. If the problem still remains after testing
all the memory banks (and finding them all to be working properly), it is likely the motherboard
itself is bad (probably one of the memory sockets). Replace the motherboard and retest.
5. At this point, the first (or previous) bank has tested good, so the problem must be in the
remaining modules that have been temporarily removed. Install the next bank of memory and
retest. If the problem resurfaces now, the memory in that bank is defective. Continue testing
each bank until you find the defective module.
6. Repeat the preceding step until all remaining banks of memory are installed and have been
tested. If the problem has not resurfaced after removing and reinstalling all the memory, the
problem was likely intermittent or caused by poor conduction on the memory contacts. Often
simply removing and replacing memory can resolve problems because of the self-cleaning
action between the SIMM/DIMM and the socket during removal and reinstallation.
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« Reply #3 on: May 06, 2003, 12:17:38 PM »

Hi,

Are these problems relating to the same system or two different ones?

Did you get this resolved?
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Sylvain Amyot
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