News
 

Bookmark and Share

(0) 

Intel Corp., the world’s leading maker of microprocessors, chipsets and network components, Monday said it had been shipping central processing units with security capability called XD-bit for some time, while a number of retailers began to supply the chips to end-users.

“All the [microprocessor] parts with the “-J” designator have XD bit and have been shipping for several weeks now,” an Intel’s spokesman told X-bit labs.

Execute Disable bit a security feature that protects certain system memory data regions from insertion and execution of potentially harmful code, that is also referred as NX-bit and works only in conjunction with Windows XP operating systems that feature Service Pack 2.

Execute Disable bit allows the processor to classify areas in memory by where application code can execute and where it cannot. When a malicious worm attempts to insert code in the buffer, the processor disables code execution, preventing damage or worm propagation. To provide end-to-end no execute (NX) coverage, Intel already released XD-enabled chips for workstations, and other server products beginning in late Q3 2004. Desktop products are now shipping, with system availability in Q4 2004. Mobile processors will begin shipping in late Q4 2004, with system availability in Q1 2005.

“We did not make any official announcement on the XD bit enabled processors,” another Intel representative said.

Akiba PC Hotline web-site reports that the first batch of Intel Celeron D 340J, 335J, 330J and 325J has made it to the retail. End-users should get the revamped chips at approximately the same or slightly higher cost compared to versions without XD bit.

Intel said only Intel Celeron D chips in LGA775 packaging support XD bit technology, furthermore, BIOS and operating system of the system should support the tech to enable it.

Advanced Micro Devices, another leading maker of microprocessors, has been shipping AMD Opteron and AMD Athlon 64 central processing units with no execute bit (NX-bit) support since April and September, 2003, respectively. Intel first introduced its XD-enabled processor – the Itanium – in 2001.

Discussion

Comments currently: 0

Add your Comment




Related news

Latest News

Monday, April 14, 2014

8:23 am | Microsoft Vows to Release Xbox 360 Emulator for Xbox One. Microsoft Xbox One May Gain Compatibility with Xbox 360 Games

Tuesday, April 1, 2014

10:39 am | Microsoft Reveals Kinect for Windows v2 Hardware. Launch of New Kinect for Windows Approaches

Tuesday, March 25, 2014

1:57 pm | Facebook to Acquire Virtual Reality Pioneer, Oculus VR. Facebook Considers Virtual Reality as Next-Gen Social Platform

1:35 pm | Intel Acquires Maker of Wearable Computing Devices. Basis Science Becomes Fully-Owned Subsidiary of Intel

Monday, March 24, 2014

10:53 pm | Global UHD TV Shipments Total 1.6 Million Units in 2013 – Analysts. China Ahead of the Whole World with 4K TV Adoption

10:40 pm | Crytek to Adopt AMD Mantle Mantle API for CryEngine. Leading Game Developer Adopts AMD Mantle

9:08 pm | Microsoft Unleashes DirectX 12: One API for PCs, Mobile Gadgets and Xbox One. Microsoft Promises Increased Performance, New Features with DirectX 12

3:33 pm | PowerVR Wizard: Imagination Reveals World’s First Ray-Tracing GPU IP for Mobile Devices. Imagination Technologies Brings Ray-Tracing, Hybrid Rendering Modes to Smartphones and Tablets

2:00 pm | Nokia Now Expects to Close Deal with Microsoft in Q2. Sale of Nokia’s Division to Close Next Month