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RAM Compatability

By sunprath ·
I had 184 MB PC100 SDRAM,then I removed them completely and fixed 512MB PC133 SDRAM.
But the system didn't boot.Whats's teh problem here.?

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Check with manufacturer

by haileyan In reply to RAM Compatability

It could be a few things. Check with the manufacturer for the proper settings. You should go to You can look up your exact system and they will provide you with exactly the right memory.

Not all memory is created equally. There can be some compatibility problems between different memory vendors and system manufacturers. In other words all PC133 is not the same.

Maybe the new chips re ECC (error correcting) and your computer cannot use it.

Memory settings may have been done maually in BIOS on this motherboard. Go into BIOS and set it to AUTO when detecting and configuring memory.

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I would say clock speed

by Oz_Media In reply to RAM Compatability

If your system board supports PC100 it MAY not support PC133. If it does, it may run it at 100MHz anyway and you will lose RAM performance with out changing the MOBO or perhpaps getting lucky with a BIOS update.

As a side note, you will probably get FAR more responses andmush better details by posting to the Technical Q&A forum, this discussion board isnot te best place to get technical questions answered.

If you're low on points, don't worry, wehen you close the question you will be awarded 1000 points, if you offer 500 points for the correct reponse, you're STILL ahead 500 points just for asking for help!

Good luck.

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Lots of possible issues

by TheChas In reply to RAM Compatability

The SDRAM standard has evolved a lot over time. There are a number of potential issues with changing or adding SDRAM to a system.

1. Many older systems do not support the newer quad density SDRAM DIMMs.

2. Many older systems assorted limits on SDRAM DIMM size.
Many support no more than 128MB per DIMM.
Some only support specific DIMM arrangements.

3. In addition to the density of the memory chips on the RAM modules, there are system issues with clock lines and CAS Latency are but 2 additional SDRAM compatibility issues.

4. There is a "bug" in the core Windows 9X code that can cause a system with more than 511MB of RAM to think it has no RAM at all. Or, cause a number of "strange" system errors.


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