IBM Portable PC
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Joined: Sun Apr 26, 2015 10:18 am
Location: Melbourne, Australia

Bitscope Blade Quattro 4 Pi Motherboard / Blade

Sun Nov 19, 2017 12:11 am

Finally, a Simple and robust way to build a server farm, even if for only 4 Pi’s.

http://www.bitscope.com/product/BB04/

Received mine this week, the build quality is excellent.

As for a case, I’ve ordered a Lollipop Stand from eBay:

https://rover.ebay.com/rover/0/0/0?mpre ... 2623055812

The dimensions are just about perfect and the price is right. A few holes to drill and I should have quite a good housing.

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jcyr
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Location: Atlanta

Re: Bitscope Blade Quattro 4 Pi Motherboard / Blade

Mon Nov 20, 2017 9:47 pm

Cool! Now if I could only find the right application to justify the cost of the blade and 4 Pi 3's...
If you want your child to get the best education possible, it is actually more important to get him assigned to a great teacher than to a great school. -- Bill Gates

ejolson
Posts: 1053
Joined: Tue Mar 18, 2014 11:47 am

Re: Bitscope Blade Quattro 4 Pi Motherboard / Blade

Wed Nov 22, 2017 4:15 am

IBM Portable PC wrote:
Sun Nov 19, 2017 12:11 am
As for a case, I’ve ordered a Lollipop Stand from eBay
Is the lollipop stand really pink?

As far as I can tell the "blade" is only a power supply. It appears not to have an integrated cooling solution (to prevent the Pi 3Bs from throttling to half speed) nor an integrated network switch (so you don't have to run a separate 100BT network cable to each Pi). Any thoughts on this?

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jcyr
Posts: 40
Joined: Sun Apr 23, 2017 1:31 pm
Location: Atlanta

Re: Bitscope Blade Quattro 4 Pi Motherboard / Blade

Wed Nov 22, 2017 5:10 am

nor an integrated network switch (so you don't have to run a separate 100BT network cable to each Pi). Any thoughts on this?
An effective integrated switch design requires that the MDIO signals normally fed to the Ethernet PHY be exposed (brought out to the 40 pin connector), thus allowing for the omission of those analog components. The Pi3 does not expose its MDIO signals so the only wired interface available is Ethernet on RG45. Adding a switch to this board would mean adding all of the components of an external 4 port 100baseT switch, including the 4 RJ45 connectors.You'd still need 4 Ethernet cables!
If you want your child to get the best education possible, it is actually more important to get him assigned to a great teacher than to a great school. -- Bill Gates

IBM Portable PC
Posts: 41
Joined: Sun Apr 26, 2015 10:18 am
Location: Melbourne, Australia

Re: Bitscope Blade Quattro 4 Pi Motherboard / Blade

Fri Nov 24, 2017 10:54 am

ejolson wrote:
Wed Nov 22, 2017 4:15 am
IBM Portable PC wrote:
Sun Nov 19, 2017 12:11 am
As for a case, I’ve ordered a Lollipop Stand from eBay
Is the lollipop stand really pink?

As far as I can tell the "blade" is only a power supply. It appears not to have an integrated cooling solution (to prevent the Pi 3Bs from throttling to half speed) nor an integrated network switch (so you don't have to run a separate 100BT network cable to each Pi). Any thoughts on this?
The lollipop stand is clear acrylic sheet / Perspex.

The “Blade” is also a very easy and efficient way to mount/house 4 x Pi’s.

hippy
Posts: 2344
Joined: Fri Sep 09, 2011 10:34 pm
Location: UK

Re: Bitscope Blade Quattro 4 Pi Motherboard / Blade

Fri Nov 24, 2017 1:35 pm

I must say I was impressed by the BitScope cluster of 150 Pi 3B's which seems to be an assembly of smaller blade units -

https://www.servethehome.com/bitscope-r ... -cores-30u

For emulating or modelling HPC solutions - rather than being full performance HPC themselves - a cluster of Zeros with networking over USB with a LAN to USB hub could be an interesting very low cost, low power proposition.

I am not sure what came of the Pi Zero Cluster after the Foundation gifted the Zeros the group were lacking -

https://twitter.com/9_ties/status/68970 ... 88/photo/1

But the Cluster Hat for four Zeros is available -

https://shop.pimoroni.com/products/cluster-hat

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