Date: Fri, 29 Dec 1995 08:26:46 -0800 From: David Greenman <davidg@Root.COM> To: Rashid Karimov <rashid@rk.ios.com> Cc: techadm@elvisti.kiev.ua, hackers@freebsd.org Subject: Re: ASUS P6/Pro MB and P6-200 Message-ID: <199512291627.IAA02730@corbin.Root.COM> In-Reply-To: Your message of "Thu, 28 Dec 95 09:31:15 EST." <inj.2-30e2b7fd-170e@bee.cs.kiev.ua>
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> After jkh@ posted here about his intentions to get > latest ASUS Ppro motherboard and 200Mhz CPU I decided > to get one here too and well, here it is now :) > > Runs just fantastic ! - in full accordance with expectations, > but the problem is I can't find 200 Mhz CPU. > The motherboard is shipped from ASUS with 150Mhz CPU and it's > not clear who carries the 200Mhz one ? > > Any suggestions ? I tried to call INtel - but its impossible > even to find the phone number to call :( Dunno if they sell it in > such small quantities. I may have already answered this question... It was me that Jordan was refering to regarding getting a P6 system. The 150Mhz part is escentially the only one that is available from Intel at this time. Only a very small number of 200Mhz parts have shipped, and they went to just a couple of large (PC) distributors. It is likely that 200Mhz parts will continue to be scarce until at least February '96. The biggest problem with the ASUS P6 motherboard is the poor PCI performance. DMA writes to memory are very slow because the PCI write buffer is disabled. It's disabled to work around a bug in the Intel Orion chipset that causes the data to get corrupted if it is enabled. With it disabled, the top performance of PCI DMA writes to memory is about 4.4MB/sec. This is too slow for fast (100Mbit) ethernet, for example, and causes half of the packets to get dropped. -DG
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