topic E8500 no hyperthreading in Intel® Moderncode for Parallel Architectures

E8500 no hyperthreading

aracrg — Mon, 05 Apr 2010 01:46:43 GMT

Hi. I have an Intel E8500 CPU paired up with an Intel DG33BU motherboard, but for some reason I have no access to the CPU's hyperthreading functionality. The BIOS configuration shows no option to enable it, and OSes only see two CPUs.

I've tried upgrading to the latest BIOS version 0572 but it didn't help. Please can someone at Intel help me fix this?

Thanks,
Aragon

E8500 no hyperthreading

TimP — Mon, 05 Apr 2010 12:32:39 GMT

The product description page tells you explicitly there is no HyperThreading on this CPU.
http://ark.intel.com/Product.aspx?id=33911&code=Intel%C2%AE+Core%E2%84%A22+Duo+Processor+E8500+%286M+Cache%2c+3.16+GHz%2c+1333+MHz+FSB%29

E8500 no hyperthreading

aracrg — Mon, 05 Apr 2010 13:41:54 GMT

Wow, don't know how I missed that. I guess I assumed all Intel chips since the P4 had it. Pardon the noise, and thanks for pointing that out!

E8500 no hyperthreading

gaston-hillar — Tue, 06 Apr 2010 01:47:34 GMT

Aracrg,

Not all Intel chips since the P4 have Hyper-Threading. However, most modern high-end CPUs have Hyper-Threading.

As any other CPU feature, it is always convenient to check its specifications before buying.

Cheers,

Gaston

E8500 no hyperthreading

TimP — Tue, 06 Apr 2010 13:57:23 GMT

There are excellent CPUs up to the $1000 category which have no HyperThreading. High end enough for me. Not everyone needs (or can afford) to run Oracle database or to pay extra for HyperThread. I do expect to start up my Pentium D HyperThread box today, but it's no match for this 8500.