Date: Thu, 3 Nov 2005 18:03:42 +0100 (GMT+01:00) From: Vittorio <vdemart1@tin.it> To: <freebsd-questions@freebsd.org> Subject: Compaq Evo 510 PC & DMA Message-ID: <6654458.1131037422815.JavaMail.root@pswm10.cp.tin.it>
next in thread | raw e-mail | index | archive | help
Some time ago I had posted a problem I was suffering trying to install freebsd 5.4 on a Compaq evo 510 PC. The boot immediatedly stopped with weird indications on the causes. Freesbie also failed. Surfing the net I understood that the problem with that specific PC was already known and no real solution was proposed. Today I came across http://www. czaplinski.net/FreeBSD/hpi386.html in which it was suggested that EVO 510 CPU: 2.8 GHz P4; 1024MB RAM; i810 Intel integrated NIC (recognized as EEPro100); i845 Intel integrated video...FreeBSD 5.1 loads, but only after DMA is disabled in BIOS. In fact, disabling the bios dma I was able to start both freesbie and the 5.4 installation CD! Not being a PC expert but knowing that dma is useful to significantly reduce the load of the CPU when I/O operations are in progress and my question is: Having disabled the bios dma, Is dma (re-)enabled all the same in some way by freebsd 5.4 when it boots OR will I have a "crippled" system at my disposal? Take into account that the pc will work as a postgresql server. Suggestions? Ciao Vittorio
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?6654458.1131037422815.JavaMail.root>