Athlon+1024 Mb RAM+FC3

[Randy Kelsoe]

John Summerfield wrote:

>On Wednesday 22 December 2004 22:22, Justin Crabtree wrote:
>  
>
>>My home machine is an Nforce2 Ultra400 board with 1GB of PC3200 memory
>>and a AthlonXP 2500+ overclocked to a 3200+ by setting the FSB to
>>400MHz.  It had FC2 on it and just last week I installed FC3.  It runs
>>great with FC3.  I upgraded the RAM from 512MB to 1GB when it had FC2 on
>>it and there were no problems.
>>
>>My guess would still be memory.  My two sticks are matched.  Maybe your
>>board or the OS is having issues with the different sticks of memory?  A
>>stretch, but I have seen weirder problems.  If you have some spare RAM
>>available, you might swap it out and see what happens.  If nothing else,
>>it would eliminate that as the problem.  HTH.
>>    
>>
>
>Thanks Justin for ignoring my request to mail only to the list:-) I'm 
>subscribed but suspended for excessive bounces (of which I can see no trace), 
>my invitations to confirm have both expired an the webpage comes up blank in 
>Konqueror (not surprise when I read the HTML!), and the lit mangler has not 
>responded to my email.
>
>Define "matched." I bought them from the same supplier and they were in the 
>same price range. I'd have thought that the supplier would ask questions if 
>it were important.
>
>Here's the DMI info for my three DDR sockets:
>Handle 0x0006
>        DMI type 6, 12 bytes.
>        Memory Module Information
>                Socket Designation: A0
>                Bank Connections: 1 2
>                Current Speed: Unknown
>                Type: Unknown
>                Installed Size: Not Installed (Single-bank Connection)
>                Enabled Size: Not Installed (Single-bank Connection)
>                Error Status: OK
>Handle 0x0007
>        DMI type 6, 12 bytes.
>        Memory Module Information
>                Socket Designation: A1
>                Bank Connections: 3 4
>                Current Speed: Unknown
>                Type: DIMM SDRAM
>                Installed Size: 512 MB (Double-bank Connection)
>                Enabled Size: 512 MB (Double-bank Connection)
>                Error Status: OK
>Handle 0x0008
>        DMI type 6, 12 bytes.
>        Memory Module Information
>                Socket Designation: A2
>                Bank Connections: 5 6
>                Current Speed: Unknown
>                Type: DIMM SDRAM
>                Installed Size: 512 MB (Double-bank Connection)
>                Enabled Size: 512 MB (Double-bank Connection)
>                Error Status: OK
>  
>

This really shouldn't matter, but there is nothing installed in your 
first dimm slot. Just for grins, swap the outer dimm to the opposite 
dimm slot.

Dimms have different ratings, and even dimms from the same manufacturer 
can be different. You might look at the dimms and see if you see a value 
for CL. It should be the same on both dimms (eg. CL=2.5 on one dimm and 
CL=2 on the other is bad. But, memtest usually shows errors if this is 
causing problems). Have you tried removing the new dimm and rebooting to 
see if you still have segfaults?