Trouble Adding Memory

[Charles Curley]

On Sat, Dec 09, 2006 at 10:38:52AM -0500, Jim Duda wrote:
> I'm running Fedora Core 5.
> 
> I have a plain vanilla 2.8Ghz P4 Intel motherboard with 4 DIMM slots.  I 
> currently have 1 DIMM of 512M DDR 3200 memory.  I purchased a second 
> DIMM of the same 3200 memory hoping to upgrade the memory.
> 
> When I install the second DIMM, the BIOS properly recognizes it, 
> however, FC5 won't boot properly.  The boot time takes forever.  The 
> bootup is sitting in "Starting UDEV" for a very long time.

The BIOS only recognises the presence of memory. It does not
necessarily test it, and the test, if any, is a minimal "quick
acceptance" test.

Install one DIMM at a time, then both, and run memtest86, which you
will find on your rescue/install CD/DVDs, on each configuration.

> 
> I believe the new memory DIMM is okay, I can use either memory DIMM 
> properly, however, attempting to use both causes a problem.
> 
> I'm stumped as to what could possibly be wrong.

Possibly you have to use a specific slot? Check your motherboard
manual for details.

> 
> I don't use the stock FC5 kernel, but instead have compiled my own 
> 2.6.18-1 kernel.  I have the Memory Split option set to the default 
> 3G/1G user/kernel split.

Try booting to the install/rescue CD/DVD.

-- 

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