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Thursday Afternoon (1 Comments) (link)
 Thursday, 11-July-2019  15:49:38 (GMT +10) - by Agg

The new Raspberry Pi 4 has some USB-C compatibility issues, and the makers have confirmed the problem. After reports started popping up on the Internet, Raspberry Pi cofounder Eben Upton admitted to TechRepublic that "A smart charger with an e-marked cable will incorrectly identify the Raspberry Pi 4 as an audio adapter accessory and refuse to provide power." Upton went on to say, "I expect this will be fixed in a future board revision, but for now users will need to apply one of the suggested workarounds. It's surprising this didn't show up in our (quite extensive) field testing program." The "suggested workarounds" are to just use a non-e-marked cable, like the official Pi 4 charger. Doesn't seem to be that big a deal as it's only fancy E-Marked cables that are confused. Discussion continues in this thread.

AMD's new X570 chipset seems to be very power hungry, with more info here. Switching from the MSI X570 Godlike to the X470 Gaming M7 AC reduces power consumption under Prime95 by 38W. Idle power drops from 67W to 52W, a substantial reduction. Suddenly, the 7nm AMD Ryzen 7 3700X is now only slightly behind the Intel CPUs rather than being separated from them by a gulf.

On that note, TechPowerUp tested a shiny new Ryzen 9 3900X on a cheap B350 mobo. AMD just launched its 3rd generation Ryzen "Zen 2" processors and has extended support for them to even the B350 and B450 chipsets. Quite a few B350 motherboards have received beta BIOS updates that enable 3rd generation Ryzen to run on them, including support for the mighty Ryzen 9 3900X 12-core processor that painted the wall with Core i9-9900K on Sunday. We wondered what would happen if we paired a cheap B350 chipset motherboard with this chip.

TechPowerUp also looked into memory scaling with the 3900X. Memory has been both the Achilles heel and the greatest performance contributor for Ryzen so far. On the first two generations of "Zen," memory clock is synchronized with the Infinity Fabric frequency, and overclocking memory beyond a point would destabilize the vital on-die interconnect, which limited memory overclocking headroom compared to Intel platforms. On the other hand, turning up memory clock would tangibly benefit performance since Infinity Fabric bandwidth would proportionately increase, enabling faster data-transfers between the various on-die componentsómost importantly, the two quad-core compute complexes (CCXs).

Telstra are in the news for the wrong reasons again, this time for a dodgy NBN install. A 40-second clip posted to the "Humans of Bankstown" Facebook page on July 7 shows cabling that was supposed to be underground strung up and across two trees on a suburban street as a means of circumnavigating access issues.

IntelInside noticed that the ACMA looked into NBN modems and found lots struggled with 100MBps FTTN connections. Disclosed a public report, ACMA found 43 modems tested (from 11 brands and 10 ISPs) struggled to notch 100/40 Mbps broadband speeds over the average 450m copper run. They also say to make sure you're using 5GHz and not 2.4GHz WiFi for best speeds. Not a problem on my 29Mbps connection. :/

Sony have a new tiny VAIO with a truckload of ports. Just look at everything you can plug in! Thatís three USB-A ports, one USB-C for charging, HDMI, a full-size SD card slot, a headphone/mic port, an Ethernet port, and even VGA. The keys now stretch to the edge of the laptop, and the bezels have been slimmed down. The SX12 uses Intel 8th Gen quad-core Core i5 or i7 processors and have an optional LTE module. It weighs 888 grams, or a little under two pounds.

In a guaranteed flamewar-starter, here's a blog about moving from Mac to Windows in 2019, by Owen Williams. Two years ago, I made the jump from macOS to Windows despite being a long-time Apple fan. I'll be honest: it wasn't an easy switch at first, but as time went by it's become clear it was the right choice. In 2019, the state of Apple's macOS devices is a disaster.



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All original content copyright James Rolfe. All rights reserved. No reproduction allowed without written permission.