tiagomnm at gmail.com
Sat Nov 14 17:51:26 EST 2009
On Sat, Nov 14, 2009 at 3:18 PM, John Watlington <wad at laptop.org> wrote:
> We received 15 XO-1.5 B3 motherboards Friday, straight from the
> assembly line.
> Five of them have been packaged in CL1A cases for 1CC developers, and
> 5 are running tests on the sawzall testbed (outside the tech room).
> There are several changes from B2:
> - change in SDIO slot assignment to move the WLAN to one with working
> suspend operation
> - power to the internal SD card (slot 3) is now controlled by the EC
> - DCONIRQ routed to an usable interrupt input
> - A second interrupt from the EC to the host is provided, to work
> around ACPI complexities.
> - change in power distribution to handle theoretical overload of
> 3VPCU circuit
> - use of QMI WLAN module (instead of AzureWave). The WLAN card > now
The WLAN card in B2 seems to have a better signal than on in the XO-1,
do you expect any changes with this new card?
> +1.8V from the motherboard, instead of linear regulators (from 3.3V).
> This is a different pinout than the AzureWave as well. Modules
> should be
> available 11/18 or so.
> - All have only 512 MB (four memory chips). Due to DRAM prices
> right now, we
> will offer this to some customers and need to test it more
That is unfortunate, the machine works really nice with 1GiB. Hope you
can keep it for deployments.
> Eight of these are running SD tests right now, waiting to test
> Two are in the hands of Paul and Chris. One will be come a new
> tinderbox next
> week, and the remainder will be put in cases after we finalize the
> MPPT ECO.
> Information is up at: http://wiki.laptop.org/go/XO_1.5_B3
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