Tuesday, May 14


Daily News Stuff 13 May 2019

Inari Kon Kon Edition

Tech News

Anime Opening of the Day

This one had me sold five seconds into the opening credits.  It's Kamichu meets Kimi ni Todoke.  Though Kamichu itself is Kamichu meets Kimi ni Todoke, so I'm not sure if that helps.

Disclaimer: Cache all the things.  Never run a database query twice if you can possibly avoid it.

Posted by: Pixy Misa at 01:08 AM | Comments (7) | Add Comment | Trackbacks (Suck)
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1 All three M.2s hang off the PCH, at least according to the article, which is disappointing considering Ryzen has 4 lanes that are supposed to be dedicated to an M.2 drive.

Posted by: Rick C at Tuesday, May 14 2019 01:22 AM (Iwkd4)

2 Yeah, but the spec sheet itself says :

1*M.2 x 4 32Gb/s from CPU, PCIe Gen 4 x 4 & SATA

2*M.2 x 4 32Gb/s 2280 M.2 slot, PCIe Gen 4 x 4 & SATA from PCH

Actually, looking at the spec sheet more closely there are some inconsistencies (PCIe 3.0 M.2 on older boards but it says 32Gb/s there too).

Posted by: Pixy Misa at Tuesday, May 14 2019 01:50 AM (PiXy!)

3 Will PCIe3 client devices[1] be able to run faster when plugged into a PCIe4 slot?  My guess would be "no", which would explain the M.2 inconsistency:  "sure, it can *have* 64Gb/s, but it won't actually use but half of it".
The article gets more than that wrong (at least, compared to the picture shown of the spec sheet), too:  the article says 1 x1 slot, but the sheet says 3; it claims there are "two 8+4-pin EPS connectors", which may not be wrong, but is misleading; pictures at VideoCardz show what looks like an 8- and a 4-pin, and "two 8+4" is not how I would've described it.

Also, anyone trying to fill that board out may be disappointed--there's something like 15 (or 19, depending on where the main M.2 is coming from) PCIe lanes all sharing the x4 PCH link, not counting the NIC, high-speed USB ports, etc.  (I don't know if AMD works like Intel's HSIO lanes in that regard.)

[1] I don't know the proper term here--video cards, M.2 drives, things that plug into a PCIe bus, that is.

Posted by: Rick C at Tuesday, May 14 2019 03:41 AM (Iwkd4)

4 Maybe 0.001% of PCIe devices are ready for PCIe 4.0.  On the motherboard side things are a lot better, and many existing AMD motherboards will support PCIe 4.0 at least to the first slot, with the new CPUs.

On the new motherboards the PCIe 4.0 uplink on the chipset will help a lot, at least in the short term.  The fastest M.2 drives currently available do 3.5GB/s, so the chipset can run two at full speed.  The uplink will eventually saturate, but 8GB/s of I/O - not including graphics - is a lot for a mainstream desktop.

Posted by: Pixy Misa at Tuesday, May 14 2019 04:26 AM (PiXy!)

5 "Maybe 0.001% of PCIe devices are ready for PCIe 4.0."
So my new RTX 2070 is probably still going to run at the same speed in a putative x570 board, which is what I figured.  Too bad--because running two 3.0 x16 video cards in 4.0 slots at 4.0 x8 would've been pretty cool.  (I assume.  I'm not hardcore enough of a gamer to bother with SLI/Crossfire.)

Posted by: Rick C at Tuesday, May 14 2019 06:39 AM (Iwkd4)

6 Yep.  IBM has been shipping servers with PCIe 4.0 since last year, so there are 100Gbit graphics cards and high-end raid controllers that use it, and AMD's Radeon Instinct GPUs.  But nothing consumer-level yet.

Posted by: Pixy Misa at Tuesday, May 14 2019 01:20 PM (PiXy!)

7 Well, my router and all my devices are 1GBe, and even if 2.5G or faster PCIe 4 cards come out soon I won't upgrade because in addition to needing a couple of 'em, I'd need to replace my router & my Synology.

Posted by: Rick C at Wednesday, May 15 2019 08:36 AM (Iwkd4)

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Apple pies are delicious. But never mind apple pies. What colour is a green orange?

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