Author Topic: PCC Hardware Detection - Memory  (Read 1149 times)

Offline sonic20

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PCC Hardware Detection - Memory
« on: April 21, 2010, 05:14:23 PM »
Installed Final Release of 2010.  In the Hardware Detection Section of the PCC I believe all of the hardware is detected properly with the exception of the memory and perhaps the processor.

I have a Dell Optiplex GX620 with an Intel Pentium 4, 3.40GHz. This processor is listed twice as #1 and #2. This is not a dual core processor, it is a single core.

I have 4 Gig of memory in two dual channel sticks, and it is recognized as such in the Bios.  The PCC Hardware Detection shows one stick with:
Name: ‎Not Specified
Installed size: ‎16 kB
Type: ‎Cache

And the other as:
Name: ‎Not Specified
Installed size: ‎2048 kB
Type: ‎Cache

I am suspecting that this memory detection is of the processor's cached memory and not of the 4 Gig of memory on the board.

Should the PCC detect the 4 Gigs of memory on the board?

Offline T6

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Re: PCC Hardware Detection - Memory
« Reply #1 on: April 21, 2010, 05:27:18 PM »
the cpu is one of those with hyperthreading?  if i remember correctly it detects two cpus

about ram, do you have mixed modules?

one brand of one speed and another brand with a different speed?  some brands won't get along nicely
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Carl Sagan

Offline sonic20

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Re: PCC Hardware Detection - Memory
« Reply #2 on: April 21, 2010, 08:28:12 PM »
the cpu is one of those with hyperthreading?  if i remember correctly it detects two cpus

about ram, do you have mixed modules?

one brand of one speed and another brand with a different speed?  some brands won't get along nicely

Yes the processor is hyperthreading. This was not a big deal since it recognized the processor correctly but listed two. 

The reason why I think PCC is detecting the processor's L2 memory is because it detects 2048 in the "second stick" and only 16kb in the "first stick"

The memory is a matched Crucial dual channel bought in the same package,  as recommended by Crucial's website for this Dell unit.

How can I know if PCLOS2010 is recognizing all 4 Gigs of memory?

Offline gseaman

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Re: PCC Hardware Detection - Memory
« Reply #3 on: April 21, 2010, 08:36:28 PM »
You need to install the pae kernel to recognize all 4gb of memory.

Galen

Offline T6

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Re: PCC Hardware Detection - Memory
« Reply #4 on: April 21, 2010, 08:40:03 PM »
"This was not a big deal since it recognized the processor correctly but listed two.  "

each thread says to the system that is a cpu core, then you have two cores but in this setting both are just logical, only one real

"The reason why I think PCC is detecting the processor's L2 memory is because it detects 2048 in the "second stick" and only 16kb in the "first stick" "

i seriously doubt that the system can confuse a cache that is only for the use of the cpu as system ram and only detect the second stick

how much ram slots do you have on that mainboard?  do you have colored pairs?  each ram module should be in a different color socket

about the ram on system, have you tested it is working fine? is it a new pair of ram modules?

you could try memtest86 and see if it reports a ok status

i just opened pcc/hardware/browse and configure hardware and had a interesting surprise, the first module reports 8 gbs of ram and the second reports 256 mbs of ram  ;D

since i know that in the first slot i put 1 gb and in the second 256 i am not worried for this(i already tested ram modules)
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Offline sonic20

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Re: PCC Hardware Detection - Memory- Dropped
« Reply #5 on: April 21, 2010, 11:25:48 PM »

how much ram slots do you have on that mainboard?  do you have colored pairs?  each ram module should be in a different color socket

about the ram on system, have you tested it is working fine? is it a new pair of ram modules?

you could try memtest86 and see if it reports a ok status

I have four slots on main board, two colored pairs. Dell's manual says that modules should be in the matching colored socket.  It is a brand new pair of modules bought just for 2010

I took out one of the modules and the same information came up as when it had two modules!!!  How can that be?

I installed the old memory,  2 sticks of 512 and and Hardware Detection still showed the same info as when I had 4Gig!!  I will drop the subject as I think that Hardware Detection may not fully work for my motherboard.

Note that I ran "free" and "cat /proc/meminfo" in Konsole and in both cases it showed that I have 3.6 Gig. Which the assistance from GSeaman would be correct. I may or may not install PAE

BTW if your system shows 8Gigs when you have only 1, something is wrong with Hardware Detection, but that is OK as long as we can verify by other methods.

I don't see any point continuing this post since we can verify memory through other means.
Thank you for your help.
« Last Edit: April 22, 2010, 12:25:13 AM by sonic20 »

Offline sonic20

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Re: PCC Hardware Detection - Memory
« Reply #6 on: April 22, 2010, 12:12:29 AM »
You need to install the pae kernel to recognize all 4gb of memory.

Galen
You may be correct since I ran "free" in Konsole and got 3.6 Gigs.  However, Hardware detection still shows the same info, even after I installed the old memory   which was just 1Gig.

I am going to drop the Hardware Detection as not working for my system and I am assured the system is reading the  most it can. I also ran "cat /proc/meminfo" and it also showed 3.6.

Thank you.