>>>>> "bh" == Brandon High <[EMAIL PROTECTED]> writes: >>>>> "nk" == Nathan Kroenert <[EMAIL PROTECTED]> writes:
nk> And I can certainly vouch for that series of chipsets... I
nk> have a 750a-sli chipset (the one below the 790)
um...what?
750a is an nVidia chip
http://en.wikipedia.org/wiki/Comparison_of_Nvidia_chipsets#nForce_700
NVidia chips are *extremely* confusing because one chipset can have
like four names (ex. NForce 630a, nForce4, MCP61P, GeForce 7050
could all refer to a single chip), and I can't find all four names
for each chip. They immitate Sun marketing for naming things.
What's the C compiler called these days?
790GX is an ATI chip
http://en.wikipedia.org/wiki/AMD_700_chipset_series#790GX
nk> and the SATA ports (in AHCI mode) Just Work(tm) under nevada /
nk> opensolaris.
The ATI SB600 has problems under Solaris:
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6665032
The ATI SB600/700 is AHCI. The nVidia SATA, I _thought_, was not AHCI
but rather nv_sata:
http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/uts/common/io/sata/adapters/
so, maybe not to confuse AHCI ``mode'' in Blue Screen of Setup with
the ahci driver?
Also, SLI is nVidia. The ATI equivalent, the northbridge Brandon is
talking about, is CrossFire. In short, there are only two lines of
AMD chipsets to choose from, and you've confused them.
But the important thing is, you're reporting opensolaris works well,
no slowdowns or sporadic lockups, SATA and Ethernet, on the nVidia
750a? In that case, I will rush right out and buy one. Nothing that
new has been reported to work yet. It looks like it's the first
nVidia chip to have the 2GHz HT bus.
bh> It should support any AM2/AM2+ dual-core Opteron like the
bh> 1220, etc. as well as the quad-core stuff.
Are you inferring that based on the name/shape of the socket? I don't
think that's a fair assumption.
The boards I looked at, if you go to the taiwanese manufacturer's web
site, explicitly list the CPU's they support, and for all the boards I
looked at, it's either phenom or opteron, not both---a strict divide
between desktop and server. Also the server boards all need
registered memory, and the desktops all need unregistered.
There are also two problems with quad-core chips. One is the
requirement for a split power plane. This seems to be stronger with
Opterons. I don't understand if it's a work/notwork issue, a speed
issue, or a power-saving issue.
The other is requirement for workaround of the BA/B2 stepping TLB bug.
and I can't untangle whether it's part of the above two requirements
or something different, but many motherboards needed a BIOS update to
boot with a Barcelona chip. Customers were told to install an older
AMD chip, upgrade the BIOS, then install the new chip. I would not
assume a chip will work based on socket name, because from reading the
comments I'm certain that assumption is unsafe. I'd suggest going
back to the motherboard manufacturer website and checking for explicit
listing of the 4-digit CPU code.
You will find a lot of posts w.r.t. the server boards at least saying
``i got a quad-core (Barcelona) opteron, and it just didn't work.''
The Tyan <nnnn>-E series is just like their old <nnnn> boards, but
with the errata to support the new chips.
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