Hello, I heard that my Kernel(2.6), could not recognize my 2gb of RAM, that it would only successfully recognize one of them, and that,for my kernel to recognize it I had to recompile it. unfortunately I do not know how to find out if this is true, I am just sure that my PC has physically 2GB of RAM, and that the BIOS does recognize it. here is the output of /sbin/lspci:


00:00.0 Host bridge: Intel Corporation 82865G/PE/P DRAM Controller/Host-Hub Interface (rev 02)
00:01.0 PCI bridge: Intel Corporation 82865G/PE/P PCI to AGP Controller (rev 02)
00:1d.0 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #3 (rev 02)
00:1d.3 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB UHCI Controller #4 (rev 02)
00:1d.7 USB Controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) USB2 EHCI Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c2)
00:1f.0 ISA bridge: Intel Corporation 82801EB/ER (ICH5/ICH5R) LPC Interface Bridge (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801EB/ER (ICH5/ICH5R) IDE Controller (rev 02)
00:1f.2 IDE interface: Intel Corporation 82801EB (ICH5) SATA Controller (rev 02)
00:1f.3 SMBus: Intel Corporation 82801EB/ER (ICH5/ICH5R) SMBus Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev 02)
01:00.0 VGA compatible controller: nVidia Corporation NV34 [GeForce FX 5200] (rev a1)
02:07.0 FireWire (IEEE 1394): Agere Systems FW323 (rev 61)
02:08.0 Ethernet controller: Intel Corporation 82562EZ 10/100 Ethernet Controller (rev 01)

I do not know if I really understand it, but it seems to me that it indeed does just recognize 1 gb. if someone could help me I would be very grateful.

Try a "free -m" command and look under "total".
Search here on LQ for highmem for some background.

well I actually realized that it maybe could have something to do with my distro(slackware 10.1) or my processor (IA-32 , a Pentium IV 3.0 Ghz to be more exact)

I also thought this output might be useful(lsdev) :

Device DMA IRQ I/O Ports
------------------------------------------------
cascade 4 2
dma 0080-008f
dma1 0000-001f
dma2 00c0-00df
eepro100 bc00-bc3f
ehci_hcd 9
fpu 00f0-00ff
GPE0_BLK 0428-042f
ICH5 3
ide0 14 01f0-01f7 03f6-03f6 ffa0-ffa7
ide1 15 0170-0177 0376-0376 ffa8-ffaf
Intel c800-c81f cc00-cc1f d000-d01f d400-d41f d800-d81f dc00-dc0f e000-e003 e400-e407 e800-e803 ec00-ec07 ffa0-ffaf
keyboard 1 0060-006f
Mouse 12
nvidia 11
parport0 0378-037a
PCI 0cf8-0cff bc00-bc3f
pic1 0020-003f
pic2 00a0-00bf
PM1a_CNT_BLK 0404-0405
PM1a_EVT_BLK 0400-0403
PM2_CNT_BLK 0420-0420
PM_TMR 0408-040b
rtc 8 0070-007f
serial 03f8-03ff
timer 0
timer0 0040-0043
timer1 0050-0053
usb-uhci 5 10 cc00-cc1f d000-d01f d400-d41f d800-d81f
vesafb 03c0-03df

exactly, it says I have just 883 mb of ram -__-

Yep, looks like Pat hasn't enabled the highmem - not unreasonable.
Simple to fix if you are comfortable compiling your own Kernel. With that hardware, it's purely a kernel (config) issue, not hardware.

it worked! thank you! now I will have to figure out how to reconfigure my sound and video drivers but that hasn't anything to do with this post... at least the highmem worked:P lol thnx.