Hi,
I have this intel system, it is one of those 'bare-bones' systems,
about 3 years old. When I got it, it had 128MB of PC-100 memory in it,
which is great, but I wanted a little more so I added a 256MB PC-100
chip a while back.
The strange thing is that the bios is only reporting 256MB when both
chips are present, and 128MB when only the 128MB is present. It does
this at the self-test on startup.
I ran memtest for one complete pass and got no errors, nor am I
experiencing any strangeness during normal operations. Only the
missing 128MB when both chips are present.
Any idea why that's happening? Could one be a different speed than the
other, so as to cause some imcompatibility?
Thanks in advance,
bill
Here's a dmesg. sorry if it gets all munged up.
Linux version 2.4.20-gentoo-r1 (root@piii) (gcc version 3.2.2) #3 Sun Mar 2 16:08:08 EST 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000000fef0000 (usable)
BIOS-e820: 000000000fef0000 - 000000000fef3000 (ACPI NVS)
BIOS-e820: 000000000fef3000 - 000000000ff00000 (ACPI data)
BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
254MB LOWMEM available.
On node 0 totalpages: 65264
zone(0): 4096 pages.
zone(1): 61168 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/hda6
Initializing CPU#0
Detected 634.870 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1253.37 BogoMIPS
Memory: 252944k/261056k available (1582k kernel code, 5688k reserved, 482k data, 88k init, 0k highmem)
Dentry cache hash table entries: 32768 (order: 6, 262144 bytes)
Inode cache hash table entries: 16384 (order: 5, 131072 bytes)
Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
Buffer-cache hash table entries: 16384 (order: 4, 65536 bytes)
Page-cache hash table entries: 65536 (order: 6, 262144 bytes)
Proc Config support by ptb@it.uc3m.es
proc config counted 1684 bytes in names
proc config counted 195 bytes in value handles
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 128K
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: 0383f9ff 00000000 00000000 00000000
CPU: Common caps: 0383f9ff 00000000 00000000 00000000
CPU: Intel Celeron (Coppermine) stepping 03
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au)
mtrr: detected mtrr type: Intel
PCI: PCI BIOS revision 2.10 entry at 0xfb210, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
Transparent bridge - Intel Corp. 82801AA PCI Bridge
PCI: Using IRQ router PIIX [8086/2410] at 00:1f.0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
Journalled Block Device driver loaded
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
PCI: Found IRQ 5 for device 00:1f.6
PCI: Sharing IRQ 5 with 00:1f.5
Uniform Multi-Platform E-IDE driver Revision: 6.31
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH: IDE controller on PCI bus 00 dev f9
ICH: chipset revision 2
ICH: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xf000-0xf007, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xf008-0xf00f, BIOS settings: hdc:DMA, hdd:pio
hda: SAMSUNG SV2044D, ATA DISK drive
hdc: ATAPI CDROM, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
blk: queue c0342ea4, I/O limit 4095Mb (mask 0xffffffff)
hda: 39862368 sectors (20410 MB) w/472KiB Cache, CHS=39546/16/63, UDMA(66)
hdc: ATAPI CD-ROM drive, 128kB Cache, UDMA(33)
Uniform CD-ROM driver Revision: 3.12
Partition check:
/dev/ide/host0/bus0/target0/lun0: p1 p2 < p5 p6 >
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
Linux Tulip driver version 0.9.15-pre12 (Aug 9, 2002)
tulip0: MII transceiver #1 config 3000 status 7829 advertising 01e1.
eth0: Lite-On 82c168 PNIC rev 32 at 0xc000, 00:A0:CC:60:FA:36, IRQ 11.
usb.c: registered new driver hub
uhci.c: USB Universal Host Controller Interface driver v1.1
PCI: Found IRQ 9 for device 00:1f.2
PCI: Setting latency timer of device 00:1f.2 to 64
uhci.c: USB UHCI at I/O 0xd000, IRQ 9
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
usb.c: registered new driver hiddev
usb.c: registered new driver hid
hid-core.c: v1.8.1 Andreas Gal, Vojtech Pavlik <vojtech@suse.cz>
hid-core.c: USB HID support drivers
mice: PS/2 mouse device common for all mice
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP: Hash tables configured (established 16384 bind 32768)
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 88k freed
Adding Swap: 499928k swap-space (priority -1)
EXT3 FS 2.4-0.9.19, 19 August 2002 on ide0(3,6), internal journal
eth0: Setting full-duplex based on MII#1 link partner capability of 45e1.
Intel 810 + AC97 Audio, version 0.21, 10:29:49 Mar 2 2003
PCI: Found IRQ 5 for device 00:1f.5
PCI: Sharing IRQ 5 with 00:1f.6
PCI: Setting latency timer of device 00:1f.5 to 64
i810: Intel ICH 82801AA found at IO 0xdc00 and 0xd800, IRQ 5
i810_audio: Audio Controller supports 2 channels.
ac97_codec: AC97 Audio codec, id: ADS64(Analog Devices AD1881)
i810_audio: AC'97 codec 0 Unable to map surround DAC's (or DAC's not present), total channels = 2
ac97_codec: AC97 Modem codec, id: SIL34(Silicon Laboratory Si3036)
i810_audio: timed out waiting for codec 1 analog ready.
i810_audio: setting clocking to 48648
NET4: AppleTalk 0.18a for Linux NET4.0
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