Kernel showing 1 cpu only in duo core 2 [SOLVED]

hey, I've search for help but all I get in hyperthreading..
Intel says it's multi-core(dualcore)
$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
stepping : 6
cpu MHz : 2000.139
cache size : 4096 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc up arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow
bogomips : 4001.95
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
is this info right??
Last edited by funkmuscle (2010-11-03 11:42:28)

lilsirecho wrote:
This is my computer dats....Post yours...
o
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Intel(R) Pentium(R) D CPU 2.80GHz
stepping : 4
cpu MHz : 2800.055
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 6
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl est cid cx16 xtpr pdcm lahf_lm
bogomips : 5602.44
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Intel(R) Pentium(R) D CPU 2.80GHz
stepping : 4
cpu MHz : 2800.055
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 6
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc pebs bts pni dtes64 monitor ds_cpl est cid cx16 xtpr pdcm lahf_lm
bogomips : 5602.41
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 48 bits virtual
power management:
[root@n6re ~]#
I did post at the start of this thread:
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 15
model name : Intel(R) Core(TM)2 CPU T7200 @ 2.00GHz
stepping : 6
cpu MHz : 2000.139
cache size : 4096 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 10
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc up arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow
bogomips : 4001.95

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Link to image 1
Link to image 2
Moderator note: large image(s) converted to link(s): About Posting Pictures In The Forums
Solved!
Go to Solution.

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Attn: ALL APPLE PORTABLE OWNERS -Macbook Pro, MacBook Air Apple portable slowdown / kernel high CPU solution

Attn: ALL APPLE PORTABLE OWNERS -MacBook Pro, MacBook Air, Mac mini slowdown kernel / high CPU use problem and solution.
YOU COULD FRY YOUR COMPUTER IF YOU DO NOT FIX THIS PROBLEM SO PLEASE READ THIS ENTIRE MESSAGE!
YOUR MAC WILL THANK YOU
Hey all.
Like many of you I've got a newer Apple portable which slows down to an unusable level for an unknown reason. In my case a 13" mid 2009 Intel MacBook Pro Core 2 duo laptop. After many failed attempts to figure out what this nutty problem is I have discovered the problem, the solution and I have solved this for my own MacBook Pro. Since this fix it has been working immediately and consistently -without issue
I am sharing this with you in hopes that you to can fix your Apple portable yourself or so you know what to tell the Apple techs so they can quickly fix your Mac from this wacky and unfortunate kernel CPU hogging problem.
User Software Symptoms :
Your Apple portable computer periodically for an unknown reason slows down making everything frustratingly slow. This happens even when running previous apps that were never a problem; things that your Mac should be able to handle easily but for some reason now it can't.
Slowdown most often happens during high CPU use such as gaming, video playback/editing, etc. or when running multiple apps (even non CPU intensive apps) at the same time.
Possible Hardware Symptoms:
Your computer is making more noise than it did previously.
Your computer occasionally makes more noise but then gets quieter.
Your computer is always extremely quiet (too quiet) even during high CPU apps -worst case scenario.
It feels hotter than it normally does. Test: After several minutes of the slowness/high kernel CPU touch the computer to feel if it's hotter than normal.
Looking at Activity Monitor (in the Utilities folder) shows the kernel_task is going bonkers eating up CPU but you have no idea why.
After trying many different things to solve this problem such as :
PR ram reset, SMC reset, fresh OS install of 10.5 and 10.6 on external hard-drives, calling and speaking to various Apple tech people who had no ideas/solutions, etc. I had no luck.
Btw, if you're having the symptoms I've decscribed above I would not run the Apple Hardware check (read below as to why). You could fry your Mac!
After much testing I found the problem :
It is my belief that "recent" Apple portable computers are using low quality internal fans which soon stop working!
Fail time period seems to be about 1.0 years to 2.5 years of use but this fail rate could vary depending on use.
First noticeable symptoms (depending on what you notice) could be computer slowdown or your fan is making more noise than it normally does. This is your fan's lubrication slowly eroding making your fan spin slower and less smooth resulting in the louder noise and slower rpm spin speed. The slower fan spin speed means less cooling is happening for your computer. The effect on your computer is that the CPU and other chips are heating up! Overheating to be more specific. When your computer's chips overheat they get wonky and screw things up. Most often this seems to have the effect of making the kernel hog CPU resulting in a frustratingly slow user experience! Heat kills computer chips and it is extremely bad for them. Extreme overheat or repeated overheating has been said to shorten the life of computer chips or in extreme cases even fry them completely!
The longer this goes on without being fixed your fan loses more lubrication and spins slower and slower cooling lesser and lesser resulting in your CPU heating up more and more possibly shortening the life of your Mac! Eventually your fan will stop completely and you could fry your chips! My fan stopped completely and my MBP was running very quietly, too quietly. Luckily I did not fry my chips because I was avoiding using high CPU apps because I knew something was wrong due to the massive slow down and wonkiness when I'd run them.
Side Note:I'm a bit concerned about all those Mac mini servers which may be using the same defective low quality fans which cannot be easily serviced by their owners as they are co-located in some server facility. One positive thing is those facilities are usually well airconditioned keeping temps low.
I suggest you do not run the Apple hardware test if you suspect your computer is overheating because the hardware test can seriously heat up your Mac! I tried running this test and my Mac got so hot I had to shut it down forcefully and I was concerned I damaged the chips. If you want to run the Apple hardware check make sure your CPU temperature is ok and that your fan works well before you run the test.
IF YOU DON'T FIX THIS PROBLEM YOU COULD FRY YOUR COMPUTER DUE TO HEAT DAMAGE!
DO NOT IGNORE THIS PROBLEM YOUR MACS LIFE MAY DEPEND ON IT!
First you need to properly diagnose this problem and see if your CPU is getting to hot and you need to see if your fans are spinning at high rpms giving proper cooling, or if they are spinning at low rpms when running high intensive apps as your CPU temp increases.
TEST IF YOUR FAN(s) IS WORKING CORRECTLY :
Unfortunately Apple does not include CPU temperature reading software nor fan rpm speed software that I am aware of.
However, There are two free ways that I know of to check your CPU tempurature and your fan speed :
One app shows fan speed, and CPU heat, etc.
One app shows fan speed, CPU heat and allows you to adjust your fan speed settings.
One app is a dashboard widget, the other is a system preference.
I suggest you download both of these to check your computer statistics.
http://www.eidac.de/?p=134
http://www.islayer.com/apps/istatpro/
http://fan-control.en.softonic.com/mac
I am not exactly sure what proper CPU temperatures are for the different Apple computers and this will change given different CPU loads.
My MBP doesn't seem to function properly with anything around 90 degrees or higher (celcius).
It seems when the fan is operating normally the CPU temp should not stay above 78 degrees even under heavy load, at least with the apps I'm running in the room temperature I'm in.
I can post back later with more specific temps under longer load, etc. but I wanted to get this post up for people to read as soon as possible so they don't fry their Macs.
If a bad fan is your problem :
THERE ARE ONLY TWO SOLUTIONS FOR THIS PROBLEM :
Fix or replace your fan so it cools the CPU and other chips properly.
I fixed my fan myself and I didn't need to buy a new one. Total cost was about $8.00 because I had to buy a #00 sized screwdriver and had it shipped to me. Price includes shipping.
On my mid 2009 model MacBook Pro fixing the fan was incredibly easy :
Before I started doing this I wasn't 100% this was the problem so I decided to try to fix my fan instead of ordering a new one and replacing it. As it turns out I didn't need a new fan, I only needed to clean the existing fan and relube it's axl so it could spin easier like when it was new. It also didn't make sense to buy a brand new fan from an Apple authorized parts reseller selling me the same low quality fan for $49.00 which would probably fail in 2 years again. Prices for new comparable fans from different manufactures range from about $15.00 USD + shipping to around $49.00 USD + shipping depending on where you order them from and what brand you get.
How to fix / replace your internal fan on a mid 2009 MacBook Pro :
Please note : I am not a hardware technician, nor expert. If you decide to fix your Mac yourself you do so at your own risk through no fault of my own. Prior to opening up your Mac you should google around and learn how to do it correctly and safely so you won't damage your Mac. For example, it is possible for you to damage your Mac by static electricity from your body. To avoid this I believe proper procedure is that you wear a 'ground strap' (around your wrist) which you clip to your Mac's metal body so your body will not excude a charge into your Mac. I believe the idea here is to keep your body's charge level and your Mac's similar. Since I do not have a ground strap and fixing/replacing the fan doesn't require touching any chips I did not wear a ground strap during my fan fix. What I did was periodically repeatedly touch the metal case of my MBP hoping that would be enough and it was. Avoid unecessary actions that can build up a static charge in you. Once I started the repair I did not walk around the room building up an electrical charge in my body. Walking on carpet can often build up a large charge in us so it is better to be avoided while working on your Mac. Certain clothing can build up static charges. Combing hair, etc. If you need to get up from your repair when you come back make sure you first touch the Mac's metal case and not anything inside.
Now that we're done with the scary paranoia, below you will find some instructions on how I fixed my MBP's internal fan
Before you begin:
Check out someone's video (not mine) on how to remove / replace the fan (but not take it apart and repair it):
http://www.youtube.com/watch?v=AghE9newvbs
Check out someone's web page (not mine) on how to replace the fan in a mid 2009 MacBook Pro:
http://www.ifixit.com/Guide/Installing-MacBook-Pro-13-Inch-Unibody-Mid-2009-Fan/ 1338/1
How to repair your mid 2009 MacBook Pro fan:
Make sure you are in a 'secure' environment. No pets, no kids running around, no drinks near the Mac, etc.
Make sure your computer is unplugged from it's power supply and turned off. NOT slept. Totally off / powered down.
1. Get a size #00 phillips screwdriver (Hobby store, Radioshack, Amazon).
2. Open up your MBP by unscrewing the bottom (yes flip it over so it's resting upsidedown). Note where each screw goes because some are different lengths. I placed each one around my MBP where they go, insuring I know their order (don't jumble them up). Note which direction your MBP is facing when it's upside down so if you spin it around while working on it you still know where the screws go.
2b. Some recommend removing the MBP's battery but I didn't do this step. You probably should, just to be safe. Follow the online instructions from the web page I listed about disconnecting the battery.
3. Unscrew the fan's 3 holding screws.
4. Unplug the fan's electrical connection (lift it straight up off the board). If you need to you can try to pry it up while you lift with a non metal/non electrical conductive object like a spudger if you have one or -perhaps a pen cap. Before you remove it, look closely at how it's attached so when you put it back on you won't wonder if you're doing it correctly. There's only one way it can go because it cannot fit 'the wrong way' but looking at it closely will make you feel more confident popping it back on when the time comes.
5. Remove the fan - it easily lifts out.
6. Take the fan apart by unscrewing it's one screw then unlatching the plastic clips which hold it together.
7. Seperate the fan blades from the housing. Lift the fan blades off of the fan housing by pulling it straight out away from the housing.
8. Clean off the dust that's gathered. A can of compressed air helps here (I didn't have one). I used a little brush from my electric shaver kit which worked well. Once you've removed all the dust from the fan and surrounding areas proceed to the next step.
9. Reapply new lubrication. You need less than 1 drop. Be sure it covers the entire fan blade axl as this is what needs to be well lubricated. Make sure there isn't excess oil that will fly around when the axl/fan spins at high rpms. I used the only oil I had which was olive oil (for cooking!) but I do not suggest this. At the time I was doing this I didn't know my fan was the problem so I wasn't even sure I was going to relube it. You should probably use something more appropriate perhaps like 3 in 1 oil. A good idea would be to call the manufatures of these little fans and ask them. Maybe a hobby store knows of good lubricants for these purposes?
DO NOT use things like WD 40 as it's not a long term lubricant or so I've read.
10. Once your fan is now clean and oiled (make sure there isn't too much oil) reassmble the fan.
Push the fan blades/axl back into the housing shaft. Give it a few spins with your finger.
Screw together the fan housing then reclip the clips.
11. Place the now reassembled fan back into your Mac and screw it in place (3 screws).
12. Reattach the fan's electrical wiring by gently pushing it into place. Make sure you've got the right end facing down before you push it in place.
13. Once your Mac's internals are clean and reassembled, place the rear cover back on your Mac and screw it in place.
14. Double check you didn't forget anything like screws, tools, etc.
15. Boot up your Mac and monitor the temperature and fan speed using those programs.
Compare the previous temps/fan speed to the current temp/fan speed.
Run a high CPU intensive app where your computer has been slowing down.
You should now have a happy Mac
If you have this problem and this solution fixed it for you please post in this thread letting me and everyone else know!
Hope that helps.

Thanks for your lengthy reminder dude, I have a similar Mac with yours. I suspect its a software fault because it happens after I upgraded to Lion, 10.7.2.

How do you spread CPU load over more cores?

Hi
I recently bought a macbook pro quadcore i7 because my 2007 macbook couldn't cope with the demands of Logic when using it rewired with Ableton Live, and had lots of CPU overload messages.
I am really disappointed that having spent so much money to overcome this problem, it has only slightly improved the amount of overload messages. I read the article below about how to spread CPU power over the cores, now I have 8. I still can't figure out though how to control which channels are using which core and spreading the CPU load to cores 5-8 which don't seem to be being used. Any ideas?
Can I rewire from ableton to different cores?
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Or should I upload my memory to 8GB RAM?
Thanks
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Here's the article:
About core activity
Logic breaks tasks down into threads that can be assigned to a single core for execution. It's not possible to split a single thread across multiple cores, although a single core may run multiple threads at the same time. This is one reason that you may sometimes see uneven load distributions across the available cores on your computer. If one thread is very processor-intensive, the core running that thread may show much more activity than the cores running less demanding tasks. This is the main reason that you may get "Core Audio Overload" warning messages even though some of the cores on your system may not show significant activity.
To monitor Logic as it uses the cores on your system, double-click the CPU meter in the Transport area.
A window displays a meter for each core.
The same concept applies to channel strips as well. Each channel strip—and all plug-ins it contains—is processed by one core. If you are using many processor-intensive plug-ins on a single channel strip, the core running it may show heavier activity. This is especially true if you are working at high sample rates (88.2 kHz or higher).
Redistributing core loads
If you find that a single core has much higher activity, use these strategies to redistribute the load.
In the example below, there is a single Software Instrument channel strip with plug-ins routed directly to Output 1-2. The channel strip for Output 1-2 has a large number of plug-ins.
In this example there is activity on two cores: the left core is handling the Software Instrument while the next core processes the Output 1-2 channel strip. You can use routing capabilities in Logic to distribute the load to more cores without changing the sound, as in the next image.
The resulting signal chain is Inst 1 > Aux 1 > Aux 2 > Out 1-2, as shown in this table:
Channel strip
Input
Output
Inst 1
Bus 1
Aux 1
Bus 1
Bus 2
Aux 2
Bus 2
Out 1-2
Also, the first four plug-ins have moved from Output 1-2 to Aux 1 and the remaining four plug-ins to Aux 2.
After adjusting the volumes to the respective channel strips appropriately, the result sounds identical, but now the load is distributed among four cores instead of two. You can use this concept to redistribute plug-ins from Audio channel strips, Software Instruments, Auxes, and Outputs (as in this example).
In the image above, there is still a very heavy load on a single core, even though it's using the routing described above. Notice the Inst 1 channel strip is selected. When a Software Instrument track is selected in the Arrange window, Logic enters "Live Input Mode". In this mode, Logic turns on every plug-in in the channel strip's signal path so the channel strip can be played live from a MIDI controller. All of this must be handled by a single thread and therefore just one core. It's a good idea to keep a track that uses an Audio channel strip selected in the Arrange window, unless you're actively playing or recording to a Software Instrument.

OS X Snow Leopard introduced Grand Central, where the OS will distribute the load better to more cores, however it takes time for software to adapt to these changes and make a rewrite of the codebase and test it out, Apple's included.

Unresolved kernel trap(cpu 0): 0x300 - Data access DAR

My Power Mac G4 Dual 1GB Quicksilver Server running 10.4.6 Server is crashing almost every night during backup using Retrospect 6.1 to an Ecrix (Exabyte) VXA-1 Firewire tape drive. I have both a Firewire and Ultra SCSI drive and first thought it was a SCSI problem, so I shut down that drive and even pulled the SCSI card, but still have the problem. I had an external Firewire drive going bad and hoped that replacing it would solve the problem, but didn't. I haven't yet tried taking the Firewire drive down and only backing up to the SCSI. I found a thread from last December where someone said they had talked to an Apple Engineer and said that there was known problem with AFP getting busy and causing a very similar error.
Below is the text of the crash report. Can someone give me suggestions based on my description and the crash report?
Unresolved kernel trap(cpu 0): 0x300 - Data access DAR=0x0000000000000073 PC=0x00000000000343CC
Latest crash info for cpu 0:
Exception state (sv=0x44CB6000)
PC=0x000343CC; MSR=0x00001030; DAR=0x00000073; DSISR=0x40000000; LR=0x0003451C; R1=0x21CC3D50; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x022E2C60 0x0003451C 0x00034280 0x000A9894
Proceeding back via exception chain:
Exception state (sv=0x44CB6000)
previously dumped as "Latest" state. skipping...
Exception state (sv=0x00A19000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.6.0: Tue Mar 7 16:58:48 PST 2006; root:xnu-792.6.70.obj~1/RELEASE_PPC
panic(cpu 0 caller 0xFFFF0003): 0x300 - Data access
Latest stack backtrace for cpu 0:
Backtrace:
0x00095718 0x00095C30 0x0002683C 0x000A8384 0x000ABD00
Proceeding back via exception chain:
Exception state (sv=0x44CB6000)
PC=0x000343CC; MSR=0x00001030; DAR=0x00000073; DSISR=0x40000000; LR=0x0003451C; R1=0x21CC3D50; XCP=0x0000000C (0x300 - Data access)
Backtrace:
0x022E2C60 0x0003451C 0x00034280 0x000A9894
Exception state (sv=0x00A19000)
PC=0x00000000; MSR=0x0000D030; DAR=0x00000000; DSISR=0x00000000; LR=0x00000000; R1=0x00000000; XCP=0x00000000 (Unknown)
Kernel version:
Darwin Kernel Version 8.6.0: Tue Mar 7 16:58:48 PST 2006; root:xnu-792.6.70.obj~1/RELEASE_PPCModel: PowerMac3,5, BootROM 4.3.3f2, 2 processors, PowerPC G4 (2.1), 1 GHz, 1.5 GB
Graphics: ATI Radeon 7500, ATY,RV200, AGP, 32 MB
Memory Module: DIMM0/J21, 512 MB, SDRAM, PC133-333
Memory Module: DIMM1/J22, 512 MB, SDRAM, PC133-333
Memory Module: DIMM2/J23, 512 MB, SDRAM, PC133-333
Network Service: Built-in Ethernet, Ethernet, en0
PCI Card: pci9004,7850, sppciscsibus, SLOT-3
Parallel ATA Device: ST380021A, 74.53 GB
Parallel ATA Device: HDS722525VLAT80, 232.89 GB
Parallel ATA Device: PIONEER DVD-RW DVR-104,
Parallel ATA Device: IOMEGA ZIP 250 ATAPI,
USB Device: Hub in Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 500 mA
USB Device: Apple Optical USB Mouse, Logitech, Up to 1.5 Mb/sec, 100 mA
USB Device: Apple Pro Keyboard, Mitsumi Electric, Up to 12 Mb/sec, 250 mA
FireWire Device: (1394 ATAPI,Rev 1.00), Prolific PL3507 Combo Device, Up to 400 Mb/sec
FireWire Device: LaCie FW800 Disk drive LUN 0, LaCie Group SA, Up to 400 Mb/sec
FireWire Device: LaCie 1394 Disk drive LUN 0, LaCie Group SA, Up to 400 Mb/sec
FireWire Device: VXA-1 1100, ECRIX, Up to 200 Mb/sec
FireWire Device: unknown_device, unknown_value, Up to 400 Mb/sec
Power Mac G4 Dual 1GB Quickilver Mac OS X (10.4.6) Power Mac G4 Dual 1GB Quicksilver (Server)

Same problem here (kernel trap=restart) during the Retrospect 6.0.212 backup to a SCSI tape drive.
With 10.4.5 we didn't have this issue, now it happens every couple of days...
Xserve DP-G4 1.0Ghz, OS 10.4.6

Extreme heating, full noise fan and kernel 150% cpu

My MBA is protected by Apple care and always had this heating problem.
Specially in the summer I have extreme heating problems, and kernel 150% of cpu slow down the computer irreparably, fan is at full throttle 6200 rpm and heating reached 85 degrees Celsius.
I have upgraded all the software, i read all the thread here, I have called the Apple customer care but i NEVER found a solution to this big problem.
Does anyone can help me to address the situation?
Thanks!

No, the cause and effect is opposite
It's not happening on mine. Here is my 1st generation 1.6Ghz MacBook Air w/Snow Leopard running a YouTube Flash video, Hardware Monitor and System Load maxed out at 100% for over 10 minutes.
http://macosg.co.uk/grabs/61071d8d0effa93c4816163b707cefc4.jpg
As you can see, the kernel task is only 3.0, CPU core temps are about 68C and the CPU clock frequency has not lowered. I might also add there is a Speck SeeThru case attached to the computer.
I suggest trying the same test. If your CPU core temps get considerably higher and kernel tasks rises at the same rate, I would say you have a cooling issue--possibly with the thermal module. The CPU/GPU may need more grease.
Dave M.
MacOSG Founder/Ambassador  An Apple User Group  iTunes: MacOSG Podcast
Macsimum News Associate Editor  Creator of 'Mac611 - Mobile Mac Support'

Installed a QuadCore tells me i only have 2 cores

I have a Pavilion 23 f250 Hewlett Packard and i recently installed a Quad Core Processor. Before i installed it i would go to Task Manager and click performance. It would tell me i have 1 core. So i decided to upgrade and I bought a amd A10 6700 3.7 ghz Richland QuadCore FM2 socket. I installed it and I went back to the task manager then performance and it says i only have 2 cores. Please explain. Or tell me if that area means something else.

Hi,
The old CPU on your machine is
AMD A4-5300
TDP: 65W
Operating speed: 3.4 GHz (up to 3.6 GHz turbo)
Number of cores: 2
Socket: FM2
It's a dual core CPU and you could see only 1
Source: http://support.hp.com/us-en/document/c03791255
Now, please check Device Manager, under Processor to see the real thing.
Regards.
BH
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Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

T61 only using one core under Windows XP?

Hi,
I have a T61 that came preinstalled with Vista but we reinstalled XP Pro SP 3 on it since we need to work with software which doesn't work with Vista.
When looking in Windows Task Manager, it only shows me one core. I don't know whether the Vista Task Manager did this too (never had a chance to see it before it was reinstalled). Also CPU-Z can only identify one core, even though it correctly identifies the CPU as being a Merom T7300 CPU.
Could it be some power-saving option somewhere that is keeping the second core deactivated? Note that I don't have the Thinkpad softwares installed, since they didn't provide any functionality that worked better than Windows XP itself.

I have somewhere seen a setting to disable the second core as a power saving feature, but for the life of me I can't remember where, and I don't have my T61 on me to look at right now. I'm thinking it was part of the thinkvantage power settings program, but I could be wrong.
T61 15.4" T9300 (2.5GHz 6MB L2) Windows 7 Professional x64 4GB Memory, NVidia Quadro NVS 140M

Sp_who2 shows cpu=2147483647

Wassup with this? Just started a big insert statement, server with four cores, sp_who2 shows 25 lines for spid #61, ok I have a parallel plan, but 24 of the lines shows cpu=2147483647.
This is on version:
Microsoft SQL Server 2008 (SP1) - 10.0.2531.0 (X64)
Mar 29 2009 10:11:52
Copyright (c) 1988-2008 Microsoft Corporation
Enterprise Edition (64-bit) on Windows NT 5.2 <X64> (Build 3790: Service Pack 2)
only unusual thing I can think of is the database is still in compatability mode 90 (SQL2005), not sure why.
Activity monitor never showed the CPU as above about 40%.
Thanx.
Josh

I remember SQL 2005 having an issue where if it has been running for a while, the internal counters it uses (specifically, @@CPU_BUSY) to measure CPU utilization accumulate to the point where SQL gets a value larger than what it's expecting.
This would cause SQL to display CPU metrics incorrectly.
I am not sure if it affects SQL 2008 though. I also am not sure if it would affect sp_who2. Right now I'm just throwing out a possibility.
Here is some documentation that describes it in further detail
http://technet.microsoft.com/en-us/library/ms186925.aspx
Hmm, that's ... interesting!
The first line in sp_who2 output for the spid, showed a reasonable number.
If it persists, I will try bouncing the server. Thanks.
Josh

Differences between core 2 duo and duo core i5

so apple have release the new 2011 MBA with duo core i5 on it. except for the backlit keyboard and thunderbolt.. the CPU are the only improvement overall.
im not familliar with computer CPU. i do not know their perfomance. but common sense are, NEW mean good and better than OLD.
do anyone know what is the difference between 2010 MBA 1.6Ghz core2duo and 2011MBA 1.6 Ghz i5?
apple said that it is 2.5X faster than core2duo.
but after upgrading to LION. im actually worrying about my 2G RAM. even without any heavy application running behind, i only have 53MB free on my system memory according to activity monitor.
here is the question. is it worth to sell away the 2010 MBA and get a 2011MBA?
i have done some calculations, probably i will need to add up another USD 380 to get a new 2011 basic spec MBA. (a total or 999 + 380 for a 2011 11" MBA)
or should i just stick with the 2010 MBA before a new one comes out next year.
please leave your comment. and english is not my 1st language. please forgive me if there's some mistake.

The Intel Core 2 Duo is far from outdated, it's a 64 bit processor, dual core which for most people is all they need.
Apple hasn't bloated OS X or their programs yet to overwork dual cores, but they are working on it if you upgrade to Lion it starts with a slight performance hit.
I have a 15" machine with a Intel Core 2 Duo and a decent video card and it's still a nice machine for being 4 years old, can even run Lion well as well as three other operating systems. Windows to Linux. I replaced the hard drive with a 7,200 RPM and maxed the RAM to 4GB myself.
What likely is outdated is your video card, the 13" Apple treats as a "MacBook" a consumers machine with little video horsepower. So that's where your problem really lies.
All you can do is, max the RAM, switch out your hard drive, (not for a SSD as you don't have the SATA 6 pipes that can handle it and it's a waste of money on a older machine with such a crappy video card), a 750GB - 1TB 7,200 RPM hard drive so you have speed and storage space.
Reinstall the OS fresh, all your programs from fresh sources and your files cherry picked from a backup storage drive (not timemachine, migration/setup assistant, clone restores or you'll go slow again and have crap) Stay on 10.6 and you'll have a good machine until it craps out, out of warranty and too much to fix it, buy a new Lion infected box.
https://discussions.apple.com/message/16276201#16276201

Kernel showing 1 cpu only in duo core 2 [SOLVED]

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