Language Selection

English French German Italian Portuguese Spanish

Driver glitch limits overclocking of Nvidia's GeForce 7800 GTX chip

Filed under
Software

Modern hardware such as Nvidia's latest graphic chip generation support temperature monitoring features that automatically can decrease clock speed and even disable graphic cards when the chip gets too hot. This "software protection mode" however works in two directions.

The card is not only shut down when temperatures get too high, but also when they fall below a certain level. This is especially the case when GeForce 7800 GTX cards are prepared for overclocking with water or liquid nitrogen cooling systems.

Nvidia confirmed in an email to Tom's Hardware Guide that the graphic chip will switch into software protection mode when die temperatures reach a range of 30 to 35 degrees Celsius. "There is an issue with our thermal detection software that doesn't let you supercool the chip to run overclocking tests," Nvidia's Nick Stam said.

Nvidia did not provide more details on the glitch. Card manufacturers told us that effects of the activation of software protection mode can range from a decrease in clock speed or even a shutdown of the card. Usually, the card only slows down when temperatures climb above 115 degress Celsius. Typical operation temperatures are between 55 and 75 degrees, Stam said.

According to Nvidia, the issue is based solely on software and will be corrected with a new driver version that is scheduled to be available by mid-July. Until then, there is a "quick/dirty fix" available from XFX for users who need to solve the problem right away. "But the driver fix will be best route" to enable overclocking through extreme cooling devices, Nvidia said.

By D. Polkowski & W. Gruener
Tom's Hardware Guide

More in Tux Machines

Android/Google Leftovers

3 open source alternatives to Office 365

It can be hard to get away from working and collaborating on the web. Doing that is incredibly convenient: as long as you have an internet connection, you can easily work and share from just about anywhere, on just about any device. The main problem with most web-based office suites—like Google Drive, Zoho Office, and Office365—is that they're closed source. Your data also exists at the whim of large corporations. I'm sure you've heard numerous stories of, say, Google locking or removing accounts without warning. If that happens to you, you lose what's yours. So what's an open source advocate who wants to work with web applications to do? You turn to an open source alternative, of course. Let's take a look at three of them. Read more

Hackable voice-controlled speaker and IoT controller hits KS

SeedStudio’s hackable, $49 and up “ReSpeaker” speaker system runs OpenWrt on a Mediatek MT7688 and offers voice control over home appliances. The ReSpeaker went live on Kickstarter today and has already reached 95 percent of its $40,000 funding goal with 29 days remaining. The device is billed by SeedStudio as an “open source, modular voice interface that allows us to hack things around us, just using our voices.” While it can be used as an Internet media player or a voice-activated IoT hub — especially when integrated with Seeed’s Wio Link IoT board — it’s designed to be paired with individual devices. For example, the campaign’s video shows the ReSpeaker being tucked inside a teddy bear or toy robot, or attached to plant, enabling voice control and voice synthesis. Yes, the plant actually asks to be watered. Read more

Security News