I'm a little confused by the Oculink suggestion, and feel that that and the 'EATX' designation of the Talos II Lite may be incorrect.
Oculink is useless here as the Lite slots do not support bifurcation, and there are no Oculink ports listed on the motherboard. Unless the slot really has to be a considerable distance from the motherboard with a PCI-e 4.0 to Oculink adapter, it seems pointless.
What I'd recommend is the ThermalTake Premium PCI-E extender - it will be cheaper and more reliable to mod that than try and butcher a x8 slot. Use the flexibility of that to host your PCI-e 3.0 x16 graphics card, leaving the PCI-e 4.0 slot for shedloads of storage. There are much cheaper options than the ThermalTake, but they're not as reliable or well made.
As to the 'EATX' support, Supermicro motherboards and cases are not EATX, they are SSI-EEB. The two are not the same. Whilst the physical dimensions of EATX and SSI-EEB are identical, the standoffs differ, and typically SSI-EEB ports feature an SSI-EEB connector to attach to the front of an SSI-EEB case. You can put most EEB motherboards in an EATX case, provided you can cope with at least one of the corners and one of the standoffs floating without support.
I've built a system using the Nanoxia Deep Silence 5, and that does have all the SSI-EEB standoffs (the DS6 apparently does not, go figure). I used the ThermalTake extender to move a graphics card, and if I remember correctly a PCI extended to move a PCI card, so as to use practically all of the server motherboard slots.
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Raptor Launching Talos II Lite POWER9 Computer System At A Lower Cost
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Originally posted by madscientist159 View Post
Those benchmarks inadvertently compared a Spectre and Meltdown-proof CPU (the POWER9) to Intel and AMD systems that were vulnerable to Spectre v2. Intel in particular has since released mitigations that have dropped its benchmark performance significantly, while we have also released information on how to turn off the Spectre protections on POWER9 if desired (see link) to raise performance on machines running trusted code.
At the moment the CPU industry is still reeling from the effects of Meltdown and Spectre, and it has become somewhat routine to compare vulnerable processors against hardened or mitigated ones, since the hardened / mitigated processors nearly always run slower. When looking at benchmarks, always look for the status of Spectre v2 user-mode separation -- that is the one that kills interpreted language performance across architectures.
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Originally posted by chithanh View PostI think you were missing the point. It was not that mechanical hard drives are suitable for high-end workstations, it is that the problem is not SSD-specific but present in almost any kind of storage.
I simply didn't consider hard disks or flash drives as an option, independently of being open or not. That's the only reason why I blamed SSDs specifically.Last edited by darkbasic; 18 May 2018, 11:10 AM.
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Originally posted by madscientist159 View Postjust because a top tier OEM can get a part doesn't mean that other OEMs can get that same part. Of course, as we continue to grow, we may start gaining the ability to use these kinds of custom parts, so there's some hope remaining!
I'd love to have such a POWER-based system. Unfortunately, I cannot currently afford to buy this. I recently spent a lot of money on a personal server based on AMD EPYC, so will not have the money to buy additional expensive computers for some time.
I hope that by the time I am ready to buy another expensive computer system (probably in about a year or so), you will have even more amazing things than what you offer now! You have already made great progress with your current product line-up, compared to where you started with the initial Talos!
I wish you success and growth!
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Originally posted by chithanh View PostWhat is that peripheral? Can it be disabled to allow bifurcation in the x8 slot?
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Originally posted by madscientist159 View PostThe other one that can bifurcate drives the x8 slot and another on-board peripheral,
Originally posted by madscientist159 View PostMany times these are provided by custom contract; the component manufacturer makes, say, 1 million or more of a part to the OEM's specification, and does not sell those parts to other companies. Something similar happened with the PS/2 port complex on ASUS boards; just because a top tier OEM can get a part doesn't mean that other OEMs can get that same part. Of course, as we continue to grow, we may start gaining the ability to use these kinds of custom parts, so there's some hope remaining!
Originally posted by darkbasic View PostYou are free to consider mechanical hard drives or usb flash drives as a viable alternative in a 3000$+ workstation, I don't.
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Originally posted by starshipeleven View PostYeah, because mechanical hard drives don't have storage controllers. Nor do USB flash drives nor any other storage device presenting itself as a "block device".
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Originally posted by chithanh View PostIs this a hardware or a software limitation? I know that on some x86 mobos, PCIe bifurcation support was a matter of modding the firmware by adding the necessary UEFI module.
Originally posted by chithanh View PostInteresting.
So that means, mobos like the Supermicro X11DPX-T use either low-quality (or insufficient for 4.0) PCIe connectors or are sourcing their parts from companies that refuse to sell to Raptor?
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Originally posted by madscientist159 View PostWhile the full Talos II has a slot that can be bifurcated on the second CPU, the Lite version doesn't support further bifurcation that what is already routed to the slots on the board.
Originally posted by starshipeleven View PostWhile I'm aware that this is probably very secondary, I think that designing all PCIe slot areas to accomodate phisically a longer card, and installing pcie connectors that are open on one end is a great thing.
Originally posted by madscientist159 View PostSo interestingly it's not the design that's the issue here, it's that actually obtaining the open slot PCIe connectors as an OEM is quite difficult. They seem to have fallen out of favor; we had investigated installing an open slot PCIe connector in the x8 slot before, but no one is making (quality) compatible edge connectors.
So that means, mobos like the Supermicro X11DPX-T use either low-quality (or insufficient for 4.0) PCIe connectors or are sourcing their parts from companies that refuse to sell to Raptor?
Originally posted by madscientist159 View PostThe only option may be carefully cutting off the end of the edge connector. If this is done in a way that doesn't damage the board, this isn't something we would void warranty for.Last edited by chithanh; 18 May 2018, 12:51 AM.
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Originally posted by starshipeleven View PostWhile I'm aware that this is probably very secondary, I think that designing all PCIe slot areas to accomodate phisically a longer card, and installing pcie connectors that are open on one end is a great thing.
The only option may be carefully cutting off the end of the edge connector. If this is done in a way that doesn't damage the board, this isn't something we would void warranty for.
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