Hello Karim, ...the parallel PCI slots really seem to have gone out of vogue... I work as a service techie for *industrial* PC's - a niche that is rather backward in its tastes :-) and if you take a look at e.g. the portfolio of Advantech, you may find ATX boards with LGA1151 with more than one PCI slot. But you definitely won't like the price tag. Other than that, the BIOS nowadays tends to be a pretty normal AMI APTIO, UEFI and legacy booting supported, but you won't find any overclocking features in the BIOS SETUP. Hmm... in the recent generation, only the AIMB-786 has two PCI slots, and that's full-size ATX. In the mATX format, if you go back to SkyLake/KabyLake, you may find a board with a single parallel PCI slot... Apparently the PCI slots are on their way to extinction, following the ISA slots :-) In the "industrial" segments you can find other formats that have parallel PCI, such as PICMG hardware or maybe an external expansion box, but I believe that's even further away from an HTPC budget and living-room aesthetics :-) Frank On 8 May 2019 at 22:39, Karim AFIFI wrote: > Dear Franck, > > Thanks a lot for all theses precisions ! I missed the 4k rate's difference > DP vs HDMI... > > For lowest consumption, I try to avoid external video card : the entry level > I found (fanless GT 1030 - 4K@60Hz HDMI 2.0) is about 30w !!! > > Active converter DP > HDMI 2.0 seems to be a good solution. Unfortunately, I > didn't found (yet) a motherboard with 2xPCI slots **AND** displayport or > HDMI 2.0. (I would like to avoid PCIE > PCI adapter). > > I will take a look to Atom CPU and Gemini Lake, but it seems there is no ATX > motherboards, only mini-ITX (not enough slots PCI/PCI-E for me). > > As you see, it's very complicated, I continue to search ... > > Best regards ! > Karim > > > > -----Message d'origine----- > De : Frantisek Rysanek [mailto:Frantisek.Rysanek@xxxxxxx] > Envoyé : mercredi 8 mai 2019 21:21 > `A : VDR Mailing List > Cc : karim.afifi@xxxxxxxxxxx > Objet : Re: Questions about good hardware to view VDR 4K > > Dear Karim, > > thanks for raising that point... > > At first I thought that the i3 "T" edition was somehow limited in the > graphics output, to make people buy the i7 - but no, if I look at > some mainstream i7 CoffeeLake CPU, the set of outputs is the exact > same spec: the CPU can produce 4k at 24 Hz only on the HDMI output > (TMDS framing), but can produce 4k at 60 Hz in the DisplayPort > format. To me this is slightly funny, because the "universal digital > display" outputs can do either DP or TMDS on the same port (the > format is configurable in software). > > https://ark.intel.com/content/www/us/en/ark/products/129944/intel-core > -i3-8100t-processor-6m-cache-3-10-ghz.html > > https://ark.intel.com/content/www/us/en/ark/products/191792/intel-core > -i7-9700-processor-12m-cache-up-to-4-70-ghz.html > > Might be a "friendly stab in the back" to the HDMI Forum :-) > The DisplayPort is Intel's own standard. > > Note that there are DP 1.2 -> HDMI 2.0 active adapters that can do 4k > at 60 Hz. > > https://www.club-3d.com/en/detail/2366/displayportt-1.2-to-hdmit-2.0-uhd-act > ive-adapter/ > > You do need an active adapter, so that the PC GPU produces DP > framing, as only on DP it can reach 4k at 60 Hz. A passive DP-to-HDMI > adapter would be identical to the scenario where the HDMI connector > is onboard, driven by the IGP "directly" (through a level shifter) - > as in both cases, it is the IGP producing TMDS framing, and that's > where it is limited to 24 Hz... > > I've read a note that HDMI audio support might be a bit of a problem > in such a setup in Linux, i.e. DP output from the Intel IGP converted > to HDMI by an adapter... although I seem to recall that the report > was about "problem solved". > > I cannot advise you on discrete GPU's, or Nvidia vs. AMD. > If you're aiming for a low-power system, the Intel IGP might be your > best bet, as the lowest-power addon GPU's have a TDP of 30-40 Watt. > As for CPU's, Ryzen is a very nice CPU, but low-power Ryzen is hard > to find, especially if you're aiming for a passively cooled computer. > > You may also want to take a look at the Gemini Lake ATOM's > (Pentia and Celerons): > https://www.intel.com/content/dam/www/public/us/en/documents/product-b > riefs/silver-celeron-datasheet-vol-1.pdf > Available on some rare Mini-ITX motherboards. > > Note that their IGP can do 4k@60Hz on both DP and HDMI 2.0. > And they can play back H.265 HEVC at 4k with hardware decoding in the > GPU (IGP). Unfortunately I have no hands-on experience with VAAPI on > this hardware. Theoretically it is supported. > Allegedly it can decode source data with 10bit color depth (H.265 > compressed video stream) but the DP/HDMI output is 8-bit only anyway > :-) > You might also want to take a look at the Apollo Lake ATOM = one > generation older (I haven't checked the specs.) > > Frank > > > Am Mi., 8. Mai 2019 um 19:01 Uhr schrieb Karim AFIFI > > <karim.afifi@xxxxxxxxxxx>: > > Hi, > > > > I am looking for an ATX motherboard with PCI and PCIE slots, for > > using with new VDR 4K (PCI S2-3200+CI and PCIE Hauppauge quad), and > > ASTERISK (PCI Digium FXO/FXS card). > > > > At the beginning, I was thinking about an Intel 1151 socket (for best > > vaapi support), like this one (*): > > > > https://www.asus.com/Motherboards/TUF-H310-PLUS-GAMING/HelpDesk_Manual > > / > > > > Unfortunately, I noticed HDMI is v1.4, with 4k@24Hz only ! > > > > I am afraid that I need to add a PCI-E video card to achieve 4k@60Hz. > > > > Is it correct ? If so, I have two questions : > > 1) could you advice about fanless + VAAPI compatible product ? > > 2) any feedback about best plateform/chipset : AMD vs Intel ? > > > > Thanks a lot. > > Karim > > > > > > (*) using with low TDP quad core CPU, for example i3-8100T. > _______________________________________________ vdr mailing list vdr@xxxxxxxxxxx https://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
