Author: batteryforpc

When you’re in the middle of a Zoom video meeting at home and your cat suddenly decides to start bawling for its dinner, you’ll want to mute your audio in a hurry. In that case, you have a choice: you can either reach for your mouse or touchpad and start searching for the “Mute” button or you can use a quick keyboard shortcut to cut off that noise immediately.

Zoom has a long list of keyboard shortcuts that you can use before or during a videoconference. By using these shortcuts, you can quickly join a meeting; mute and unmute the audio; start, pause, and stop recording; switch views from Speaker (a large image of the person speaking) to Gallery (several equally sized images, no matter who is speaking); and perform a variety of other tasks.

You can easily find a list of those tasks, and the shortcuts that you can use, in your Zoom app:

Go to Zoom’s settings by clicking on the gear in the upper right-hand corner

In the left-hand menu, select “Keyboard Shortcuts”

Of course, the keys you press on a Mac or a Windows PC will be different, but no matter which platform you use, those shortcuts can be really useful when you’re on a laptop Zoom call.

The workstation and server markets are big business for not only chip manufacturers such as Intel and AMD, but for motherboard vendors too. Since AMD’s introduction of its Zen-based EPYC processors, its prosumer market share has been slowly, but surely, creeping back. One example of a single socket solution available on the market is the GIGABYTE MZ31-AR0. With support for AMD’s EPYC family of processors, the MZ31-AR0 has some interesting components including its 2 x SFP+ 10 G Ethernet ports powered by a Broadcom BCM57810S controller, and four SlimSAS slots offering up to sixteen SATA ports. 

GIGABYTE MZ31-AR0 Overview

As it stands, AMD has two versions of its EPYC range on the market: the first generation Zen series (called Naples), released in June 2017, and the Zen 2 based EPYC chips (called Rome). Each processor from AMD’s EPYC families has support for 128 PCIe lanes and up to 2 TB of system memory operating in eight-channel mode.

Despite the GIGABYTE MZ31-AR0 being a server motherboard, it uses the regular E-ATX form factor, with with a single SP3 socket that, depending on the revision of the board, supports Naples (rev 1.x) or both Naples and EPYC (rev 2.x). This ranges from base 8 cores 16 thread model (EPYC 7251), all the way to a 64 core and 128 thread variant (EPYC 7742).

EPYC is focusing on both performance and IO, and so along with a lot of PCIe lanes on offer, the MZ31-AR0’s primary features includes a Broadcom BCM 57810S dual SPF+ 10 G Ethernet controller which adds two 10 G ports onto the rear panel. For maintenance, an Aspeed AST2500 powered remote management controller provides BMC functionality, with a D-sub 2D video output with a dedicated Ethernet port for direct access.

Both revisions of the board are limited to PCIe 3.0, even with Rome, but the board makes the most of the available PCIe 3.0 lanes. The GIGABYTE MZ31-AR0 has four full-length PCIe 3.0 x16 slots, one full-length PCIe 3.0 x8 slot, with a further two full-length PCIe 3.0 x8 slots given this board a total of seven full-length slots. This is an impressive array of PCIe support and is equipped to make the most of the 128 lanes available from the processor. Equally impressive is sixteen memory slots set up in two banks of eight slots either side of the SP3 socket which offers eight-channel support. These slots support both RDIMM and LRDIMM DDR4 modules up to a maximum capacity of 2 TB, with DDR4-2666, DDR4-2400, and DDR4-2133 all supported.

For storage, the GIGABYTE MZ31-AR0 is well-equipped with four SlimSAS ports with each slot supporting four SATA drives, with a combined total of sixteen available for use. Interestingly, the MZ31-AR0 is equipped with a single PCIe 3.0 M.2 slot. Some users may have expected a second M.2 slot due to the board’s large E-ATX form factor, but alas that is not the case. Focusing on the design, the board layout implies it would be more than suitable for rackmount deployment in a 1U chassis, which it is, although it can also be used in a permitting chassis that features E-ATX support. The positioning of the single 24-pin motherboard and two 8-pin CPU 12 V ATX connectors fit in line with support for 1U chassis, with GIGABYTE offering its own 1U solutions for users to capitalize on. The SP3 socket is rotated with this in mind for better airflow in a server situation.

From a performance perspective, we compared the MZ31-AR0 against an ASRock server model as well as other 16-core Zen compatible boards. Everything is in line with the competition – POST times are higher than anticipated, but this can be put down to the BMC initialization process. The performance in relation to power consumption is also a little higher than the ASRock model we tested, but it is EATX (versus ATX) and is pretty stacked, to say the least.

The GIGABYTE MZ31-AR0 currently retails for $565 at Amazon, and as a result of its current price point has a couple of competitive rivals on the market. One such example is the Supermicro MBD-H11SSL-NC which retails for $470 at Newegg, although with a much lesser networking configuration, and with fewer memory slots. Another example is the ASRock Rack EPYCD8 model with a current selling price of $460, which is in a similar with Intel dual 10 G Ethernet but has fewer memory slots.

Both of the Supermicro and ASRock examples are also ATX, whereas the GIGABYTE MZ31-AR0 is E-ATX, and as a result has more space to include the better memory support and premium dual 10 G SPF+ networking which it includes. For the extra $100 over the ASRock and Supermicro models, the MZ31-AR0 looks like a solid choice based on value and specifications, which in this area given the pricing of AMD’s EPYC Zen-based processors, is a very worthy trade-off against the competition.

HPE has told customers that four kinds of solid-state drives (SSDs) in its servers and storage systems may experience failure and data loss at 40,000 hours, or 4.5 years, of operation.

The IT titan said in a bulletin this month the “issue is not unique to HPE and potentially affects all customers that purchased these drives.” HPE has not identified the SSD maker, though, and refused to do so, saying: “We’re not confirming manufacturers.”

Your humble vulture has seen evidence the faulty drives were made by Western-Digital-owned SanDisk. WD declined to comment.

Meanwhile, Dell-EMC issued an urgent firmware update last month that also mentioned SSDs failing after 40,000 operating hours, and specifically identified SanDisk SAS drives. The update included firmware version D417 as a fix to prevent future data loss.

If you’re getting deja-vu, you’re not alone. HPE separately warned of certain SAS SSDs dying after their 32,768th hour of operation in November last year.

Drawing a line between these two blunders, HPE noted this month: “While the failure mode is similar, this [latest] issue is unrelated to the SSD issue detailed in this customer bulletin released in November 2019, which describes an SSD failure at 32,768 hours of operation.”

To avoid this new data death bug, HPE customers should install SSD firmware version HPD7, described as a “critical” fix. From the March bulletin:

HPE was notified by a Solid State Drive (SSD) manufacturer of a firmware defect affecting certain SAS SSD models used in a number of HPE server and Storage products (ie: HPE ProLiant, Synergy, Apollo 4200, Synergy Storage Modules, D3000 Storage Enclosure, StoreEasy 1000 Storage). The issue affects SSDs with an HPE firmware version prior to HPD7 that results in SSD failure at 40,000 hours of operation (ie: 4 years, 206 days, 16 hours).

While Intel has forced consumers to upgrade their motherboard with every new wave of CPUs since Skylake, Colorful apparently has a more cost-effective solution. Hardware leaker @momomo_us recently discovered that Colorful’s H310M-E V20 accepts four generations of Intel Core chips, spanning from Skylake to Coffee Lake Refresh.

The H310M-E V20 comes in a compact, micro-ATX form factor and, of course, features a LGA1151 CPU socket. Colorful only lists compatibility for Coffee Lake and Coffee Lake Refresh processors, but the the CPU-Z screenshots below show the H310M-E V20 working with with previous Kaby Lake and Skylake processors as well. This would make the H310M-E V20 the jack of all trades in the H310 motherboard world.

With the ample processor support aside, the H310M-E V20 isn’t the best motherboard you can buy when it comes to specs and is everything you’d expect from your typical budget H310 offering. The board only has two DDR4 RAM slots and supports DDR4-2666 memory modules. The motherboard lacks an M.2 port, and you’re restricted to four SATA III connectors for your hard drives and SSDs.

The expansion slot configuration on the H310M-E V20 is as basic as it gets. The motherboard supplies one PCIe 3.0 x16 slot and one PCIe 2.0 x1 slot for housing graphics cards and other expansion cards.

The H310M-E V20 utilizes two third-party controllers. Thanks to the Realtek RTL8111H controller, the motherboard has a Gigabit Ethernet port. Additionally, the Realtek ALC662 audio codec provides a 6-channel audio experience through three 3.5mm audio jacks.

Connectivity options on the rear panel come down to two PS/2 ports, one HDMI port, one VGA port, two USB 3.0 ports and two USB 2.0 ports. Fortunately, the motherboard has one USB 3.0 and one USB 2.0 header, meaning you can have up to four more USB ports for connecting peripherals.

Samsung has just announced a brand-new Android tablet for the masses. The new 2020 Samsung Galaxy Tab A 8.4 offers up LTE connectivity, solid battery life, and more all for an affordable price.

The 2020 Galaxy Tab A 8.4 is a tablet designed for an affordable price point. Obviously, it offers up an 8.4-inch display which has a resolution of 1920×1200, leaving a 16:10 aspect ratio which should be handy for content consumption.

The tablet also features Android Pie. That’s pretty disappointing considering how long Android 10 has been out, but at least it’ll include One UI. There won’t be DeX support like the more expensive Galaxy Tab S6. There’s a 5MP front-facing camera for video calls and an 8MP rear camera too. There’s also a 5,000 mAh battery, USB-C charging, and Samsung claims up to 10 hours of battery life on typical use.

How about specs? You’ll find 3GB of RAM, 32GB of storage with a microSD card slot, and the whole system is running on an Exynos 7904 processor. There’s also a headphone jack and dual-speakers with Dolby Atmos.

For now, the 2020 Galaxy Tab A 8.4 is only available for Verizon Wireless. Of course, you’ll still be able to use it as a WiFi-only tablet if you’d prefer to. The Tab A is available in a “Mocha” color and has a full metal design.

Pricing lands at $279 with AT&T, Sprint, US Cellular, and T-Mobile models coming soon.