> The best person to get a sample would be the Sony Z2 owner Mikjoa that
> has just used a PE4L-PM060A to do the first mPCIe 2.0 DIY eGPU
> implementation here.
> I can ask if he'd like to do testing and writeups with this KZ-B26 but
> I'd only ask if it was pci-e 2,0 compliant.
Unfortunately, PCIe 2.0 is not successful in our lab, probably because
using PCIe-mPCIe adapter on desktop PC.
So, when KZ-B26 is directly attached to laptop mPCIe slot, it may
be still chance to work properly.
> KZ-B26 questions
> 1. Is it pci-e 2.0 compliant end-to-end?
So far, it is not successful.
However, similar product KZ-B21 using equivalent cable works
fine with PCIe 2.0, so we suppose KZ-B26 should work fine with PCIe2.0.
KZ-B21 (Flexible x1 PCI Express Extender)
Also, shorter cables (10cm or 20cm) have much more chance
for PCIe2.0 than present (30cm/12inch) cable.
> 2. I can see the ZIF cable is flexible. Would the cable be durable enough
> to be threaded out of the chassis, be wrapped under the chassis and
> taped down when not in use? Then when required just undo tape
> and connect to the ZIF-expresscard connector?
We suppose KZ-B26 can work the kind of use.
However, it's a kind of "drip injection", it can not work well hard mobile work.
> 3. Would it be possible to go one step further and create some form of
> double-adapter allowing a wifi card and the ZIF-PM3A adapter to occupy
> the same mPCIe slot, similar to your MM3U? So when the ZIF cable was
> attached to the expresscard-ZIF adapter, it would detect it and disengage
> the wifi card from working?
It's interesting idea!
We will think about it in the next version.
> Thunderbolt details with TH05 questions
> 1. It is mentioned on your facebook page that it is 2 channel pci-e 2.0 link.
> That is x2 2.0.
Yes, TH05 support PCIe2.0 x2.
> The concern me since Sandy/Ivy Bridge expresscard is x1 2.0 which
> approximates to x2 2.0 with Optimus' pci-e compression (requires iGPU +
> NVidia Fermi/Keplar card and a x1 link). So x2 2.0 Thunderbolt isn't
> offering us any more performance.
We can understand the situation, PCIe2.0 x2 is not large leap
from PCIe 2.0 x1.
> What I'm wondering is whether x4 2.0 and/or x4 3.0 Thunderbolt will
> be available with the TH05? We have very little detail on the Thunderbolt
> controllers other than the Series-6 chipset has a x4 2.0 link for the
> Thunderbolt controller and the Series-7 chipset is x4 3.0 capable.
Unfortunately, x4 can not be supported by TH05, because we
use IC with Thunderbolt x1 channel and PCIe 2.0 x2.
In 2012, and early 2013, we will keep using the IC, though
there are TBTx2+PCIe2.0x2 ICs.
First we will develop all product with TBT IC with TBTx1+PCIe2.0x2.
After we get experience of TBT, we will use TBTx2+PCIe2.0x4 for
Step by step and tick-tock.
> So that link needs the right matched components (Thunderbolt
> mux/demux controllers and cabling) to get full performance out of it.
> Finding the right candidate machine may require figuring out if they
> have x2 2.0 or x4 2.0 or x2 3.0 or x4 3.0 TB links.
> THe manufacturers of course are not telling us any of that detail.
We suppose PCIe2.0x4 (5Gbps x4) is reasonable, because
TBT I/F is 10Gbps x2.
So, TBT I/F itself will be bottle neck for PCIe3.0x4.
PCIe3.0x2 may possible, however, we do not see PCIe3.0 on
intel road-map so far.
> 2. Are you going to re-route the eGPU's Displayport output back via
> Thunderbolt to the system? That would mean that if the system had
> a muxed internal LCD it could display output to the internal LCD
> without incurring any bandwidth penalties as we are seeing with
> NVidia Optimus. It would require a mDP connector on the TH05
> to attach to the video card's HDMI/DP connector.
So far, we do not have plan to add DisplayPort to our products,
because TBT IC we use does not have the option.
After we use another IC with PCIe2.0 x4, we will add DP port.
> 3. Obviously people want to get their hands on these TH05
> Thunderbolt-to-pcie adapters. How far are we realistically away
> from seeing a publically available product? Is there any NDA
> preventing beta/engineering samples being released?
Yes, intel's NDA is very strict.
We suppose intel wants to control TBT market strictly
because it's very high speed and the market should not
be messy with low quality products.
So only intel certified products can be released, and
hopefully TH05 should be certified in the end of August.
After that we can release samples for limited quantity.