Date: Sat, 11 Mar 2006 14:56:06 +0100 From: "V. T. Mueller" <freebsd-amd64@datafarm.de> To: Ken Gunderson <kgunders@teamcool.net> Cc: freebsd-amd64@freebsd.org Subject: Re: major pita w/LSI Tyan TA26 combo Message-ID: <4412D6F6.1050805@datafarm.de> In-Reply-To: <20060306103138.47e23f8d.kgunders@teamcool.net> References: <20060303133844.451cb4f7.kgunders@teamcool.net> <200603031343.10334.fcash@ocis.net> <E8B9BFA8-AEF9-4820-8817-523ACAC53B18@khera.org> <200603060807.32455.fcash@ocis.net> <440C6490.3060602@datafarm.de> <20060306103138.47e23f8d.kgunders@teamcool.net>
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Hello Ken, Ken Gunderson schrieb: > On Mon, 06 Mar 2006 17:34:24 +0100 > "V. T. Mueller" <freebsd-amd64@datafarm.de> wrote: >>We used to have problems with adapters running at 66MHz or more >>using risercards in a number of Tyan S2707. Those risercards came >>from Chenbro, along with the cases. By replacing them with Tyan >>risercards (which became available a few months *after* the boards) >>those problems vanished. >> >>And now comes the interesting part: Months later, problems began to >>reoccur. In the end we found out that the power supplies were of >>somewhat low quality. Replacing the power supply helped in every >>system that was affected. > > Could you please provide more details about the low quality units, e.g. > make and model? Sorry for the delay. Here is the data of one of those PSUs: EMACS/zippy Model: P2U-6300P (V) Ser. No.: T33406403 http://www.zippy.com.tw/P_product_detail.asp?lv_rfnbr=2&pp_rfnbr=1074&pcp_rfnbr=2&pp_name=&pcp_name=2U%20Single&pcpw_rfnbr=2&pp_code=P2U-6300P We had a bunch of them replaced with newer versions. I can't tell you from which serial number onwards the problems went away but I was told that all models with "black labelled fan" cause problems and all with "blue labelled fan" work flawlessly. So the latter might be somewhat revision 2 ... Cheers, vt
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