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TVS-x72XT - PCIe slots (PCH and CPU) and use

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4 posts • Page 1 of 1 gary_nap Starting out Posts: 35 Joined: Wed Jan 06, 2021 6:31 am

TVS-x72XT - PCIe slots (PCH and CPU) and use

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Post by gary_nap » Sun Mar 28, 2021 11:28 pm

Hello, What do the abbreviations "PCH" and "CPU" mean with regards to the PCIe slots? I can't find anything that says. "CPU" slot is the one type is pre-populated with the Thunderbolt card. Are there any notable differences other than width? As I am not interested in using Thunderbolt, can I use the "CPU" slot for any approved expansion card? Also is there anything Regards. Gary Top User avatar jaysona Been there, done that Posts: 866 Joined: Tue Dec 02, 2008 11:26 am Location: Somewhere in the Great White North

Re: TVS-x72XT - PCIe slots (PCH and CPU) and use

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Post by jaysona » Mon Mar 29, 2021 5:01 pm

PCH is the Platform Controller Hub, it replaces the Northbridge and Southbride chipsets with a single chipset, sometimes included on the CPU die package adjacent to the CPU. The CPU labelled PCIe has the PCIe lanes connected directly to the CPU, the PCH PCIe lanes connect to the hub, and the hub then handles communications between the PCIe device(s) and the CPU. The PCIe connector labelled “CPU” is typically used for higher bandwidth intensive, low latency peripherals. If you are not going to use the Thunderbolt card, you can remove it and drop in any QNAP compatible PCIe card. RAID is not a Back-up! H/W: QNAP TVS-872x (i7-8700. 64GB) (Plex server & encoding host) / TVS-EC1080 (32Gig ECC) - VM host & seedbox H/W: Asustor AS6706T (32GB) / Asustor AS7010T x2 (16GB) (media storage) H/W: TS-219 Pro O/S: Slackware 14.2 / MS Windows 7-64 (x5) Router1: Asus RT-AX86U - Asuswrt-Merlin - 3004.388.6_2 Router2: Asus RT-AC66U - Asuswrt-Merlin - 386.12_6 Router3: Linksys WRT1900AC - DD-WRT v3.0-r46816 std Router4: Asus RT-AC66U - FreshTomato v2021.10.15 Misc: Popcorn Hour A-110/WN-100, Pinnacle Show Center 250HD, Roku SoundBridge Radio (all retired) Ditched QNAP units: TS-269 Pro / TS-253 Pro (8GB) / TS-509 Pro / TS-569 Pro / TS-853 Pro (8GB) TS-670 Pro x2 (i7-3770s 16GB) / TS-870 Pro (i7-3770 16GB) / TVS-871 (i7-4790s 16GB) / TS-509 Pro (died due to old age) Top gary_nap Starting out Posts: 35 Joined: Wed Jan 06, 2021 6:31 am

Re: TVS-x72XT - PCIe slots (PCH and CPU) and use

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Post by gary_nap » Mon Mar 29, 2021 7:52 pm

Thank you Jaysona for an awesome answer! I could not figure out how to give you an up vote. Top Taylorjulie First post Posts: 1 Joined: Thu Apr 01, 2021 12:32 pm

Re: TVS-x72XT - PCIe slots (PCH and CPU) and use

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Post by Taylorjulie » Thu Apr 01, 2021 12:37 pm

I have also the same question, I have fixed it. Thanks all Top Post Reply
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