NVIDIA Admits G-Sync Glitch Resulting in Huge Power Spikes at High Refresh Rates

NVIDIA’s G-SYNC is a propriety module embedded into select monitors which directly synchronizes game performance with the monitor’s refresh rate. This creates a smooth experience and minimizes the stutter you would typically get from V-Sync. This also eliminates screen tearing and some users argue it’s a more seamless experience than AMD’s FreeSync technology. Evidently panels with G-SYNC incur a hefty price premium which means consumers have high expectations.

Recently, a software bug emerged which results in significant increases in the GPU’s power draw under idle circumstances. Bizarrely, the clock speeds ramp up too, but only at a significant amount on monitors with a 144Hz+ refresh rate. This notion was discussed by Ryan Shrout from PCPer and said:

“But the jump to 144Hz is much more dramatic – idle system power jumps from 76 watts to almost 134 watts – an increase of 57 watts! Monitor power only increased by 1 watt at that transition though. At 165Hz we see another small increase, bringing the system power up to 137.8 watts.”

“When running the monitor at 60Hz, 100Hz and even 120Hz, the GPU clock speed sits comfortably at 135MHz. When we increase from 120Hz to 144Hz though, the GPU clock spikes to 885MHz and stays there, even at the Windows desktop. According to GPU-Z the GPU is running at approximately 30% of the maximum TDP.”

NVIDIA have acknowledged the strange power draw issue and is currently working on a fix to be included in a driver revision. The NVIDIA response reads:

“We checked into the observation you highlighted with the newest 165Hz G-SYNC monitors.

Guess what? You were right! That new monitor (or you) exposed a bug in the way our GPU was managing clocks for GSYNC and very high refresh rates.

As a result of your findings, we are fixing the bug which will lower the operating point of our GPUs back to the same power level for other displays.

We’ll have this fixed in an upcoming driver.”

I’d love to hear from people who own a G-SYNC display. Do you feel the module is worth the added cost when selecting a monitor?

School Student Arrested For Bringing Homemade Clock To School

The current world climate is one of placing people into narrow pre-perceived boxes which are based on current world stereotypes. A person is judged solely on their looks, dress sense and their social standing within society among others. Are these connotations correct? No, not really considering an individual could have 6 tattoos and a perception of being a wild character, yet could be kind and gentle.

This notion of stereotyping has sunk to a whole new level after a 14-year-old boy was arrested in Texas on suspicion of constructing a “hoax bomb.” Was it a real or counterfeit bomb? No… it was a clock. Officials at MacArthur High School in Irving alerted police because they thought the device was a threat to the education facility.

The teenager’s name was Ahmed Mohamed’s and below is an image of the homemade clock which was conveyed by Irving Police Department at a press conference. Perhaps it would have been better to ask the teenager concerning the device instead of ringing the police. The teen was subsequently placed in handcuffs and fingerprinted but later released after it was determined there was no threat.

To protest against this ludicrous situation a hashtag by the name #standwithAhmed was born and immediately garnered support from powerful individuals, these included NASA scientists, Facebook CEO Mark Zuckerberg and US President Barack Obama. Mr Ahmed’s family have arrived at the conclusion that his detainment was down to his name.

So, what is the response from the school? According to them, they have “always asked students and staff to immediately report if they observe any suspicious items”. MacArthur High School would argue that it’s better to be safe than sorry, but, in this instance could this not have been handled by someone asking him concerning this device? After all, Ahmed said that he had made a clock at home with the view to convey this to his engineering teacher.

I do feel suspicion has risen to the point of hysteria, yes there are many instances which have tragically occurred over the decades that have highlighted failures in legislation, but to roll out an overused phrase, would there have been the same reaction if this individual had been of a different ethnicity? It’s a shame that society has reached such a juncture to where even school goers are on the look out for potential terrorists and gun wielding people, one has to wonder as to how far this could go, the only thing I was afraid of at school was algebra, not suspected terrorists.

Thank you bbc for providing us with this information.

More Nvidia GeForce GTX 980 Ti Details Leaked

AMD’s new flagship graphics cards with HBM memory are just around the corner and it looks like Nvidia is trying to steal the show a bit. We’ve seen more and more leaks about the upcoming GeForce GTX 980Ti recently which points in the direction of an eminent release date.

The newest information comes from the same Korean tech-publication as the previous “leaks”, only this time we get a GPU-Z screenshot revealing the clock frequencies.

The GeForce GTX 980Ti is clocked at 1000MHz and has a GPU boost frequency of 1076MHz, very close to that of the GTX Titan X. The memory is clocked at the usual 7012MHz GDDR5 speed.

Other previously revealed specifications include 2816 CUDA cores and 176 TMUs. You’ll get 6GB video memory running on a 384-bit memory bus with 336 GB/s bandwidth. The card is powered by a 6-pin and 8-pin power connector and comes with one DVI, one HDMI, and three DisplayPort connectors.

What we don’t know for sure yet are the ROPs that are expected at 96, the TDP and the MSRP.

There are also some 3DMark benchmark results coming from the same direction, both Fire Strike and Cloud Gate. The Fire Strike test clocks in with a score of 14,071 while the Cloud Gate reaches 29,444.

3D Printed Whiteboard Clock Writes Out Current Time

21-year-old software engineer Maurice Bos has built a mechanical clock that writes the current time on a whiteboard every minute, each time erasing the previous time.

Bos, who works for Google in Zürich, built the clock using a 3D printed arm to grasp a whiteboard pen. The pen, receiving instructions from a tiny microcontroller, is responsible for both writing the current time each minute and erasing the previous one, with the help of a detachable wiping attachment that fits over the nib.

Bos has posted a detailed summary of how his whiteboard clock works here.

Source: The Next Web

The Most Bizarre Digital Clock You’ve Ever Seen

Clocks and watches these days can be pretty complicated. Sometimes it feels as though the days of a minutes hand and a seconds hand are numbered. This clock however, is unlike anything else you’ve ever seen.

The Blub Uno clock uses a single nixie cathode tube, technology from the 1950s that was indeed used to display the time before LCD came along. However, in most nixie tube clocks, there were multiple nixie tubes, each showing a different digit. In the Blub Uno, a Kickstarter by Duncan Hellmers, there is only one tube to display all of the digits.

As Duncan says, the Blub Uno isn’t necessarily the most efficient way of telling the time, but it is “a clock which can hold its own as an object of function when you need it and beauty when you don’t”. He’s already received way over his $6,o00 goal and is past $11,000. You can back it here and watch a video about it bellow.

Source: The Verge

Meet Wakie: Get Woken Up By Strangers

An app has been released this week on iOS that allows you to wake up strangers or for you to be woken up by them.

Wakie, which was previously released on Android and Windows Phone, made its PR debut this week following its release on the iPhone and iPad. The app is pretty simple really – it’s an alarm clock, but the alarm is replaced by random strangers.

If you choose to be a ‘Sleepyhead’ and get woken up, a stranger from anywhere in the world will initiate a VOIP call to your device to wake you up. That call lasts 1 minute and you then get the chance to communicate via a forum in the app following your call.

If you’re a ‘Wakie’, the process is just the opposite. You get to wake a randomly chosen stranger. Think of it like Tinder for sleep. or waking from sleep rather.

Wake is currently free, but in an interview with TechCrunch, the developers say that they’re working on a special paid-for version that will allow you to extend calls for 5 minutes and choose the gender of those you’re communicating with.

Source: TechCrunch

Drink Coffee During the Day… At the Scientifically Proven Best Times!

Most people drink coffee early in the morning, during the day or at night in order to last the night. Either at work, at home or out with friends, it seems that most people go out for a coffee as a way to socialize nowadays. But the question is, when is it the best time to drink a cup of coffee?

Neuroscience doctoral student, Steven Miller, seems to explain that the best time for drinking coffee is between 9:30 and 11:30. He states that careful timing of when you get your daily dosage of coffee is important and prevents people from building up a tolerance to it. Miller says that it is the same as with painkillers and antibiotics, having them administered only when needed so as to prevent individuals from becoming resistant to their effects. Coffee however does not alter the body’s pain or pleasure, it is merely a way to alter its alertness to fatigue, prolonging the daily activity.

This is why Miller suggests to avoid drinking coffee during time periods when the body is naturally more alert. Just as nobody takes a prescription painkiller for a mild headache, coffee should only be drank at certain times in order to feel the desired effect. More information about the body’s internal clock, the hormones it releases periodically throughout the day and other coffee-drinking best times throughout the day can be found on Miller’s blog here.

Thank you Popular Science for providing us with this information

Apple Fix For Basic iPhone Feature Now Available

Apple are one of the most high-profile businesses that there are around the world, yet, as some unfortunate users have found, they seem to fail at writing some of the most basic code needed for a mobile. Considering the massive amount of functions that the iPhone has to carry out, it is hard to conceive the fact that there is an issue with the code needed to run the clock and even more importantly its wake & sleep buttons. Surely this has to be a joke right?

Sadly though this is far from a joke and after a large number of customers consulted Apple for this simple issue, Apple have admitted that there is a problem with its ever popular iPhone 5 handset. Whilst the problem may not seem that bad, if you happen to use the clock on your shiny new 5 handset, you may have been experiencing some late awakenings in the morning after the wake/sleep buttons fail to respond to the user’s input. Additionally this is NOT the first time that iUsers have experienced a problem with their clocks. As early as 2010, there have been known problems and bugs with the simple looking clock and whilst many have been fixed with simple updates, this time it’s worse than ever.

The problem is so severe that it simply can’t be resolved with an iOS update and this means that it is time to head down to your local Genius bar and get it hands on repaired. Apple claim that this problem only affects a ‘small percentage’ of users and the fix-it program as been introduced to enable users to have their handsets fixed free of charge; and rightly so to be honest. US and Canada users initially can access the program and after entering the devices serial number into the Apple website, qualifying users will be prompted to head to the Apple Repair Centre.

There are one or two points that Apple do wish to add though, damaged screens will HAVE to be repaired before the device is sent in to have the clock fixed and you will have to part your beloved and cherished phone for around a week. There are other options to consider if parting with your handset is not an option. One is to ignore the problem and find another solution, another is to get another non-iDevice handset instead, or simply get a non-Apple branded clock. Some of these options are a little more drastic than others, so I’ll leave it to you to decide.

Will this be the last time we’ll hear of a problem like this? For some reason I think not.

Source: Fudzilla

 

PowerColor Radeon HD 7790 TurboDuo OC 1GB Graphics Card Review

There a whole heap of partners that work with AMD to manufacture graphics cards and with the release of the 7790, I’ve looked at a card from virtually every major player in the market. It’s very rare that this happens to be quite honest as I typically only see three or four cards at a time for each class of card but there’s nothing wrong in breaking the mould a little and overall getting one of the most extensive data sets for Bonaire going.

PowerColor is a partner that I’ve not worked before, but this is not to say that their product is not worth looking at. The then ATI partner, who are owned by TUL, have been producing cards since 1997 and in some respects are a little unheard of these days when compared to the big names such as Asus and Gigabyte to name a few and be-known to some have also produced cards from NVIDIA, although this was done under the Zogis brand name.

With the release of the 7790, like may other partners, we see more than one SKU appear on the market by the brand with two slightly different overclock variants in that. The TurboDuo that I’m going to look over today is the faster and in a way, the better of the two, with a better cooling option and also a higher clock speed out of the box, but the real question is how does it stack up when pitted against the armada of 7790’s that I’ve already seen and tested…

PowerColor have kept the bundle very simple, with a VGA to DVI adaptor, installation guide and a driver CD. I do note that the CD still displays the ATI branding for some reason, although a guess would be that the image that is printed on to the disc has not been updated in a long time. I’d also recommended going to the AMD website to download the latest drivers.

Asus Radeon HD 7790 DirectCU II OC 1GB Graphics Card Review

Having looked at a number of choices for the 7790 from MSI, Sapphire and Club3D, its time to see what is on offer from Asus and when we mention Asus, what comes to mind is DirectCU. We’ve seen some manufacturers use their own design of coolers across their own product ranges, but no-one it seems has been more successful at this over Asus. Bar only minor design tweaks to cater for different cards, the DirectCU II coolers inherently all look pretty much a part of the same family, each shrouded by the iconic black metal frame and three red stripes that run along the breadth of the cooler.

So what sets DirectCU apart from the competition ? Well we’ve found time and time again that they are some of the most efficient when it comes to cooling, especially on the acoustics front, with the top four spots on the charts taken up by a cooler of this design. This naturally gives this cooler a chance to join that group. On the basis of Bonaire, we’ve seen some impressive results to date and knowing that Asus don’t like to displease their huge following of users, I’m sure there is going to be something special hidden somewhere inside this card.

In a standard Asus fashion, we find the box decorated with an artistic breakdown of the cooler and the moniker three claw slashes that run to the top right hand corner. Inside we also find a standard accessory set that includes a legacy display adaptor, CrossFire bridge, driver CD with GPU Tweak and a setup guide.

MSI Radeon HD 7790 OC Edition 1GB Graphics Card Review

Having seen that AMD’s new Bonaire core has taken to the market a lot better than anticipated with its high level of performance, relative to its price, its very much worth looking at what other options that there are to chose from over the Sapphire and Club3D cards that I’ve already looked at. Next to the line with their over clocked edition card is MSI. Whilst I’ve typically looked at cards from the upper end of the graphics spectrum from MSI, including their GTX670 Power Edition and GTX680 Lightning, its been a long while since I’ve look at a card that sits lower down in their range, let alone an AMD offering at that.

Like many other cards that I look at, this one as mentioned has had an overclock giving it a boost of power over what AMD provide, and with a core clock of 1050MHz and a memory clock of 1500MHz, we should be seeing this card sit mid point between the cards from the brands mentioned above. What could be potentially interesting later on is seeing how well this card over clocks. Whilst this is not normally hot topic of a review, like all other cards that I review, this will be pushed further using MSI’s own afterburner software and given the response I’ve had from their own cards in the past within Afterburner, there is the pre-empted expectation that this will clock better than the other 7790’s that I’ve already pushed – this though is to be found out, after all I could be proved wrong as a lot of it is down the old fable of the silicon lottery.

Afterburner is the buzz word on the front of MSI’s blue and white box with the main focus around displaying the over clock that comes on the card and inside with the card we get a fairly standard set of accessories including driver CD and guide, power adaptor and legacy display adaptor.