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View Full Version : Need Help!!!! CUPZ shows only 1 CPU loss another one



mbimac
May 30, 2009, 03:49 AM
:confused:

early 2008 Mac pro 2x 4core E5462 @2.8Ghz (bought 2 monthes ago has 3yrs apple care)

Today I ranning in OS Vista x64 suddently I lost one of CPU
but in device manager there are showing 8 core(8 cpu@2.8Ghz)
and I got cpu marks around 4800(according to Performace Test7.0);3Dmark vantage cpu score 10900 is that normal or it should doudle 10900x2=around 20000? thanks need help

anybody here has any idea what's going on ?

many thanks

if this problem cannot be solved I will call apple to fix it


grue
May 30, 2009, 03:55 AM
Let me guess: Vista Home Premium?

Also, for the love of all things unholy and holy alike, please cut back on the extraneous punctuation.
macz1
May 30, 2009, 04:31 AM
as long as there are no problems in OS X everything should be fine. Probably a software-related issue (as grue said, the basic versions of vista allow only one CPU to be used even if there are to of them...)
mbimac
May 30, 2009, 04:47 AM
as long as there are no problems in OS X everything should be fine. Probably a software-related issue (as grue said, the basic versions of vista allow only one CPU to be used even if there are to of them...)

Thank you

I am using vista Home Prem (x64), after I restart to win XP Pro everything is fine.thanks ,yes you are right maybe it's software's issue


BTW does windows vista Home Premium x64bit support 2 cpus? I never know about that OMG!!.
grue
May 30, 2009, 06:04 AM
Thank you

I am using vista Home Prem (x64), after I restart to win XP Pro everything is fine.thanks ,yes you are right maybe it's software's issue


BTW does windows vista Home Premium x64bit support 2 cpus? I never know about that OMG!!.

only Business and Ultimate support multiple sockets.
mbimac
May 30, 2009, 09:29 PM
only Business and Ultimate support multiple sockets.

Thank you I will keep this in mind, today I just install the vista ultimate 64bit

I am still keeping my vista Home Prem x64
gugucom
May 30, 2009, 09:45 PM
XP-32 Pro shows all four cores on a MacPro1,1
mbimac
May 31, 2009, 01:20 AM
XP-32 Pro shows all four cores on a MacPro1,1

Yes I believe so, only high version of windows can support multi-CPUs [xp pro 32/64; vista business ultimate 32/64]

i just know this yesterday,bcz I have never used 2 cpus system since I bought Mac pro.

thank you
JesterJJZ
May 31, 2009, 04:19 AM
Multiple (crippled) versions of an OS is one of the most asinine concepts in computing.

I love the different versions of Leopard that Jobs introduced at WWDC07... :D

http://www.youtube.com/watch?v=8fEBr6umj5Y