Tag Archives: intel

Windows 8 and Intel USB 3.0 Host Controllers

http://plugable.com/2012/12/01/windows-8-and-intel-usb-3-0-host-controllers

Now download these two .inf files which have been modified to allow the Intel driver to install on Windows 8:
inf

We are going to replace the existing versions of these two files with the ones we just downloaded. Place the files in the following directory of the unzipped driver package and click yes when Windows warns that we are over writing a file with the same name:

Intel(R)_USB_3.0_eXtensible_Host_Controller_DriverDriversWin7x64

This will update these two infs with the modified versions that will allow the Intel driver to install on Windows 8 when the Host Controller and USB hub drivers are updated.

To install the Intel drivers in place of the in box XHCI stack, we’ll have to temporarily disable Driver Signing Enforcement. To do this press the Windows key + R and in the run box type:

shutdown.exe /r /o /f /t 00

Now make the following selections to boot into the Start Up Setting Screen

Troubleshoot — Advanced options — Start Up Settings — Restart

Then, when the machine restarts, select “Disable driver signature enforcement”. Your machine will start with Driver signing enforcement disabled until the next reboot.

When the machine restarts, open Device Manager (win + r, devmgmt.msc). Double click on the entry for the Intel(R) USB 3.0 eXtensible Host Controller and select the Drivers tab. You should see that the driver provider is Microsoft.

Now click “Update Driver” and then select “Browse my computer for driver software”.

Next choose “Let me pick from a list of device drivers on my computer”.

Next, select “Have Disk”.

In the Window that pops up titled “Install From Disk” choose “Browse” and navigate to the location where we replace the original infs with the two modified .inf files we downloaded earlier. Select iusb3xhc.inf and click ok.

Windows will warn that the driver is not signed and will require you to confirm the installation.

Once the installation is complete, reboot the machine following the same procedure as above:

shutdown.exe /r /o /f /t 00

Now make the following selections to boot into the Start Up Setting Screen

Troubleshoot — Advanced options — Start Up Settings — Restart

When the machine starts, select “Disable driver signature enforcement”. Your machine will start with Driver signing enforcement disabled until the next reboot. Once logged in, open Device Manager (win + r “devmgmt.msc”) and locate the entry under Other devices for an Unknown device, to find the correct one, double click on the entry for the unknown device view the details tab. Make sure it has the VID_8086.

Once you have located the correct device right click on it and choose “Update Driver” Choose “Browse my computer”, Windows will ask you to identify the type of device, scroll down and select “Universal Serial Bus Devices”.

Click next, choose “Have Disk”, “Browse” and select the modified iusb3hub.inf that we placed in the Intel(R)_USB_3.0_eXtensible_Host_Controller_DriverDriversWin7x64 folder earlier and click ok.

Again, Windows will warn about driver signing, when the install is finished, reboot your machine.

When it restarts look at the driver tab for the Intel(R) USB 3.0 eXtensible Host Controller and the Intel(R) USB 3.0 Root Hub to confirm that you are now running the Intel drivers.

To return to the built in Microsoft USB 3.0 driver stack, use the uninstall drivers button from the driver tab in device manager. When it’s finished, select the Action menu of Device Manager and “scan for hardware changes” Windows should find the Intel USB 3.0 host controller and re-install it using the built in Microsoft XHCI stack.

Intel:超线程将死

INQ报道--Intel首席技术官Justin Rattner今天表示,鉴于多核心处理器时代即将到来,Intel原有的超线程技术即将走到末路。
 
为了进一步推广多核心处理器技术,Intel还将在软件开发者中推动一项名为“Tera Scale”活动,鼓励他们为双核心/多核心平台编写应用程序。
 
在次之前,Rattner就曾向业内人士透露“多核心平台需要专门编写的新软件”。
 
看来,我们再也无法“理解”超线程了,从Intel最初推出超线程开始,Intel就对其真正优势采取回避态度,不愿告诉我们,究竟有那些微软软件能够从超线程中获益。
 
Rattner还表示,Intel多核心技术已经为下一代PC负荷量做好准备--剩下的,就要看程序员们如何编写需要多核心“负荷”的新软件了。
 
Rattner还对Intel处理器的耗能/性能比表现颇为自豪,并透露Intel将提高内存与处理器数据输入输出效率--“目前的PC系统效率实在太低下了。”
 
无论怎么说,Intel已经做好决心抛弃曾经的宠儿,看来,用不了多久,Intel Pentium EE上的HT“袖标”就要和我们说再见了。
 
超线程一路走好。

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2005:Intel不知所措的一年

2005年,Intel除了为我们带来了一大堆令人困惑的处理器编号外,就只是祈祷AMD不要夺走太多的市场份额了,而事实证明这也仅仅是希望。今年AMD大步入侵Intel的服务器市场领地,并且还将把这种势头保持到明年。
 
AMD今年再也不像以前那样在台式机CPU市场和Intel纠缠,而是将矛头直指老大哥的咽喉——服务器处理器市场,并且也成功地在这一领域对Intel造成了巨大的冲击,尽管这是以损失销售收入为代价。
 
在笔记本市场方面,AMD也继续向Intel发起挑衅。尽管其“Turion”笔记本处理器在CES大展上出尽风头,但到了5月份相关产品才真正面世,而Intel这时也坐不住了,终于做出了今年仅有的几件实事,这其中当然不包括其战略图上仍然保留Itanium。
 
5月初,Intel开始着手处理器的65nm制程转换工作,同时还确认将用Pentium M来取代Pentium 4。
 
接下来,人们发现Opteron是如此轻松地干掉Intel Xenon,某厂商甚至预测到2005年底,AMD将获得15%的服务器处理器市场份额。
 
而在5月份的“Gartner System Builder Summit”大会上,服务器主板厂商超微确信AMD的Opteron处理器已经流行起来,其Opteron主板也成为会上的明星。某知名厂商甚至透露Intel根本不敢在高性能计算机(HPC)领域和AMD叫板。
 
随后在旧金山,Intel透露了“Napa”的技术细节,并且宣布Yonah将于明年早期面世。8月份,Intel又为我们描绘了“Montecito”的美好图景,但这一切都无法阻止Itanium这一昔日旗舰的覆灭。
 
到目前为止,Intel仍然继续获取着巨额利润,同时也无疑仍是笔记本市场的霸主,不过我们对AMD Opteron在明年的表现寄予厚望,而Intel现在只能寄希望于Yonah,Merom等等新核心处理器。至于明年1月份即将出现的Viiv,Intel目前正忙着劝说消费者:不管Pentium 4“芯”还是Pentium M“芯”,只要是Viiv就是好“机”。

AMD再度公开叫阵Intel双内核比试

 再一次,自信的AMD向龙头老大Intel发出挑战,并扬言可以进行公开的现场直播,其信心满满的姿态令Intel只能沉默是金:
 
"新加坡消息:AMD 已向英特尔发出挑战书,准备用自己的双核处理器与英特尔的双核处理器进行基准测试,一决性能高下。如果英特尔接受此项挑战提议,那么这次比试活动将于12月6 日在新加坡这个岛国举行。
 
由AMD 提出的这次双内核处理器比试活动将进行现场直播,公众预计,这次比试的平台将是AMD 当前最好的双内核处理器Opteron 800 系列或是200 系列处理器,与英特尔相对应的Intel x86 商用处理器平台之间的对决。
 
有关这次挑战活动的消息,是上周初被作为广告宣传单夹在当地报纸中公之于众,这也是由AMD 发起的,继8 月23日在美国的挑战活动后的又一次挑战。
 
AMD 东南亚地区销售与市场部副总裁,Bryan Low 在应ZDNet 亚洲记者的电子邮件采访时表示,本次挑战活动的目的就是“给消费者所关心的,相关处理器在计算能力及性能方面的信息,以便于他们能作出最佳选择。”
 
到目前为止,不管是在新加坡还是美国,英特尔都没有正式接受AMD 的挑战。截至发稿时为止,芯片市场的老大英特尔业也没有对事接受采访。"