4Gb memory?

DISCUSSION Hakona Spect 2 participants 2 messages Oct 27, 2003

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Hakona Spect

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2003-10-27 21:33 UTC #0 lore raw

$/sbin/lspci
00:00.0 Host bridge: Intel Corp. 82860 860 (Wombat) Chipset Host Bridge (MCH) (rev 04) 00:01.0 PCI bridge: Intel Corp. 82850 850 (Tehama) Chipset AGP Bridge (rev 04) 00:02.0 PCI bridge: Intel Corp. 82860 860 (Wombat) Chipset AGP Bridge (rev 04) 00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 04)
00:1f.0 ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 04)
00:1f.1 IDE interface: Intel Corp. 82801BA IDE U100 (rev 04)
00:1f.2 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 04)
00:1f.3 SMBus: Intel Corp. 82801BA/BAM SMBus (rev 04)
00:1f.4 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 04)
00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio (rev 04) 01:00.0 VGA compatible controller: nVidia Corporation NV25GL [Quadro4 700 XGL] (rev a3) 02:1f.0 PCI bridge: Intel Corp. 82806AA PCI64 Hub PCI Bridge (rev 03)
03:00.0 PIC: Intel Corp. 82806AA PCI64 Hub Advanced Programmable Interrupt Controller (rev 01) 04:0b.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78) 04:0c.0 FireWire (IEEE 1394): Texas Instruments TSB12LV26 IEEE-1394 Controller (Link)

Quoted 46 lines

From: Zwane Mwaikambo <[email protected]>
To: Hakona Spect <[email protected]>
CC: [email protected]
Subject: Re: 4Gb memory?
Date: Mon, 27 Oct 2003 16:10:18 -0500 (EST)
Quoted 1 line · Hakona Spect
Hi, I just installed 4GB memory to my system. In BIOS it shows up all
8x512M
Quoted 4 lines
chips. But after boot it shows:
$ free
             total       used       free     shared    buffers     
cached
Quoted 1 line
Mem: 3753328 566800 3186528 0 96040
189960
Quoted 20 lines
-/+ buffers/cache: 280800 3472528
Swap: 2096440 0 2096440
$dmesg
Linux version 2.4.22 (root) (gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)) #1 SMP Mon Oct 27 12:44:16 EST 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 00000000000a0000 (usable)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000007ff77000 (usable)
BIOS-e820: 000000007ff77000 - 000000007ff79000 (ACPI NVS)
BIOS-e820: 000000007ff79000 - 00000000e7f77000 (usable)
BIOS-e820: 00000000e7f79000 - 00000000e8000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee10000 (reserved)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved) user-defined physical RAM map:
user: 0000000000000000 - 00000000000a0000 (usable)
user: 00000000000f0000 - 0000000000100000 (reserved)
user: 0000000000100000 - 000000007ff77000 (usable)
Quoted 8 lines
user: 000000007ff77000 - 000000007ff79000 (ACPI NVS)
user: 000000007ff79000 - 00000000e7f77000 (usable)
user: 00000000e7f79000 - 00000000e8000000 (reserved)
user: 00000000fec00000 - 00000000fec10000 (reserved)
user: 00000000fee00000 - 00000000fee10000 (reserved)
user: 00000000ffb00000 - 0000000100000000 (reserved) 2815MB HIGHMEM available.
896MB LOWMEM available.

Quoted 4 lines

Which motherboard? Some boards will reserve some of the area between ~3.7 and 4G for various option roms and other devices present in the system. Resulting in "lost" physical RAM.

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Zwane Mwaikambo

2003-10-27 22:00 UTC #1 lore raw

Quoted 16 lines · Hakona Spect

$/sbin/lspci
00:00.0 Host bridge: Intel Corp. 82860 860 (Wombat) Chipset Host Bridge (MCH) (rev 04)
00:01.0 PCI bridge: Intel Corp. 82850 850 (Tehama) Chipset AGP Bridge (rev
04)
00:02.0 PCI bridge: Intel Corp. 82860 860 (Wombat) Chipset AGP Bridge (rev
04)
00:1e.0 PCI bridge: Intel Corp. 82801BA/CA/DB PCI Bridge (rev 04) 00:1f.0 ISA bridge: Intel Corp. 82801BA ISA Bridge (LPC) (rev 04) 00:1f.1 IDE interface: Intel Corp. 82801BA IDE U100 (rev 04) 00:1f.2 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #1) (rev 04) 00:1f.3 SMBus: Intel Corp. 82801BA/BAM SMBus (rev 04)
00:1f.4 USB Controller: Intel Corp. 82801BA/BAM USB (Hub #2) (rev 04) 00:1f.5 Multimedia audio controller: Intel Corp. 82801BA/BAM AC'97 Audio (rev 04)
01:00.0 VGA compatible controller: nVidia Corporation NV25GL [Quadro4 700

Quoted 8 lines

XGL] (rev a3)
02:1f.0 PCI bridge: Intel Corp. 82806AA PCI64 Hub PCI Bridge (rev 03) 03:00.0 PIC: Intel Corp. 82806AA PCI64 Hub Advanced Programmable Interrupt Controller (rev 01)
04:0b.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev
78)
04:0c.0 FireWire (IEEE 1394): Texas Instruments TSB12LV26 IEEE-1394 Controller (Link)

I would most probably guess this is the case with your system.