Date: Wed, 29 Sep 2004 00:52:12 -0400 From: bsdfsse <bsdfsse@optonline.net> To: questions@FreeBSD.ORG Subject: "ad2: TIMEOUT - READ_DMA retrying (2 retries left) LBA=5855" Message-ID: <415A3F7C.3010208@optonline.net>
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Well, I think I found the problem. FreeBSD 4.x and 5.x do not like my new Asus P4SP-MX (Celeron) motherboard's IDE controller. I "fixed" this by using a leftover Adaptec 1200A Raid controller as an "alternate IDE controller". I plugged the 3 HD's in to the 1200A, and I no longer get the DMA errors. I havent' tried the DVD drive, but I expect I will get the DMA errors, since it is still connected to the mobo. I installed via FTP, so I didn't use the CD's. There was another problem with using some Compaq RAM chips on the Celeron, doing so generates Signal 11's in addition to the DMA errors. I guess I will buy some new RAM for the machine, if the functioning 128MB isn't enough for it. I have another machine, a Compaq Presario 6024 (P4 1.8Ghz). It has 3 big (Western Digital) drives, and is also running FBSD 5.3-Beta6 - and it does *not* get the DMA errors. My laptop (Toshiba 2805-S301) also runs Beta6 fine. Only my Asus P4SP-MX mobo has the DMA errors. thx!
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