Intel® ISA Extensions
Use hardware-based isolation and memory encryption to provide more code protection in your solutions.
Announcements
FPGA community forums and blogs on community.intel.com are migrating to the new Altera Community and are read-only. For urgent support needs during this transition, please visit the FPGA Design Resources page or contact an Altera Authorized Distributor.
1135 Discussions

Intel I7 - 860 help.

chadr
Beginner
‎03-08-2010 08:33 AM
1,022 Views

Hello, I hope this is the proper place for this thread.

I have a question. I have the I7-860 running on a 400W PSU. I notice that it isn't running at it's full potential. I notice that it has cores 7, 5 halted, core 3 is sometimes halted as well.I have my bios set to use all cores. Is this a power issue? does the I7 halt cores if there is not enough power to run them?

0 Kudos

Link Copied

2 Replies
Gabriel_Topala
Beginner
‎03-08-2010 11:40 AM
1,022 Views

You're probably seeing the results of Core Parking. Windows 7 will power down cores to save energy when it isn't busy enough to utilize them.

Thanks,

Gabriel Topala

www.gtopala.com

0 Kudos
Copy link
TimP
Honored Contributor III
‎03-08-2010 01:36 PM
1,022 Views
400W is plenty for the CPU; possibly not for the video cards typically used along with this model CPU. As the other response indicated, the platform looks for opportunities to save power by halting logicals, and (with Turbo enabled) to speed up remaining cores when the work is concentrated on them.
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.