PCSTATS Main Page Follow PCSTATS on Facebook PCSTATS RSS Feed PCSTATS Twitter Feed + Motherboards
+ Videocards
+ Memory
+ Beginners Guides
News & Advanced Search  Feedback?
[X]   Directory of
Guides & Reviews

Beginners Guides
Weekly Newsletter
Archived Newsletters

 

Contact the Suite 66 Advertising Agency
Seagate Backup Plus Slim External USB 3.0 2TB Hard Drive Review

MSI NX7900GT-VT256E-HD HDCP-enabled Geforce 7900GT Videocard Review

MSI NX7900GT-VT256E-HD HDCP-enabled Geforce 7900GT Videocard Review - PCSTATS
Abstract: The videocard supports a whole host of TV output options including S-Video, Composite, Component output (Y, Pb, Pr) and the NX7900GT-VT2D256E-HD is also HDMI compatible if a DVI-to-HDMI cable is used.
 88% Rating:   
Filed under: Video Cards Published:  Author: 
External Mfg. Website: MSI Oct 08 2006   Colin Sun  
Home > Reviews > Video Cards > MSI NX7900GT-VT256E-HD

Protected Video Path User Accessible Bus or PVP-UAB

Protected Video Path - PVP-UAB - User Accessible Bus is the second aspect of video control in Microsoft's OCMP suite. It is intended to ensure that information passing through the system bus cannot be 'snooped' or otherwise copied at the hardware level by encrypting all 'premium content' media data with a simplified form of 128-bit AES encryption.

In order to be compliant with PVP-UAB, graphics cards must incorporate both a unique identifier (which is used in the encryption/decryption process) and a hardware decryption engine to decrypt the 'premium' data as it is received from the system bus.

Audio Protection

Protected User-Mode Audio - PUMA - is Microsoft's projected mechanism for protecting audio media from the same copying risks that the PVP features cover for video. License based DRM (Digital Rights Management) systems used by online music vendors have proven to be quite effective at managing the use of digital music files, but they do nothing to prevent these files from being digitally copied in a form which separates them from their license.

PUMA will combine the interface disabling and quality reduction abilities of PVP-OPM with a 'no-fly' list of restricted software. Under Windows Vista, audio is run in a separate user process, removed from the system kernel operations; audio applications and hardware may need a certificate of approval before they can handle audio under PUMA.

Protected Audio Path - PAP - is a future audio protection implementation for Vista or later Windows operating systems. It is not expected to be implemented anytime soon. The main feature of PAP will be internal encryption similar to that used by PVP-UAB, which will scramble audio signals as they pass through the system bus between the media being played and the sound card or audio chip.

It's not clear how this would be implemented with digital audio files, which we'd expect to be the primary means of playing audio on the computers of the future.

As you might imagine, the most contentious aspect of said features is the prospective effect that they will have on users who wish to play tomorrow's HD DVD disks on their computers. Most computer monitors are quite capable of displaying HD resolutions, thus making them an ideal home for HD DVDs. One way or another, we have seen the future, and it is encrypted.

Next up, PCSTATS will be overclocking the MSI NX7900GT-VT2D256E-HD videocard to see if it has the performance to back it up.

< Previous Page © 2017 PCSTATS.com Next Page >

 

Contents of Article: MSI NX7900GT-VT256E-HD
 Pg 1.  MSI NX7900GT-VT256E-HD HDCP-enabled Geforce 7900GT Videocard Review
 Pg 2.  nVidia GeForce 7900GT Technology
 Pg 3.  Inside Mechanics of HDCP Technology
 Pg 4.  — Protected Video Path User Accessible Bus or PVP-UAB
 Pg 5.  Overclocking to 575MHz!
 Pg 6.  Benchmarks: 3DMark05
 Pg 7.  Benchmarks: 3DMark06
 Pg 8.  Benchmarks: AquaMark3
 Pg 9.  Benchmarks: FarCry
 Pg 10.  Benchmarks: Splinter Cell: Chaos Theory
 Pg 11.  Benchmarks: Doom3
 Pg 12.  Benchmarks: Quake 4
 Pg 13.  Benchmarks: FEAR
 Pg 14.  Benchmarks: X3: Reunion
 Pg 15.  Advanced Benchmarks: FarCry, Doom 3
 Pg 16.  Advanced Benchmarks: FEAR and Conclusions

SEARCH PCSTATS 
Use the power of Google to search all of PCSTATS and the PCSTATS Forums. Tell us what you think of this new feature - FEEDBACK?
   12 / 16 / 2017 | 5:45PM
Hardware Sections 


google
 
PCSTATS Network Features Information About Us Contact
FrostyTech
TransmetaZone
BeginnersPC
PCSTATS Newsletter
PCSTATS Forums
ShoppingList Assistance
Tech Glossary
Technology WebSite Listings
PermaLink News
Archived News
Submit News (Review RSS Feed)
Site Map
PCstats Wallpaper
About Us
Employment
Privacy Policy
Advertise on PCSTATS

How's Our Driving?
© Copyright 1999-2017 www.pcstats.com All rights reserved. Privacy policy and Terms of Use.