Intel e4600 duo works only with one core

January 18, 2012 at 08:35:26
Specs: Windows XP, 2.4ghz/2gb
Hi!
My problem - my processor (Intel e4600 core 2 duo) works only with one core, other dont do almoust anything... Sometimes first core works with 100% but second - just 1% or 3%... latest dravers.. Dont know what to do.. pc working so slow... plz help!

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#1
January 18, 2012 at 08:54:51
Did you always have a dual core CPU or did you upgrade from a single core? Do you run any software that makes use of the 2nd core? are you a heavy multi-tasker? There are plenty of XP systems that only have a single core CPU & they run perfectly fine (not slow). If your system is "slow", I doubt it's because the 2nd core isn't being used. What are you doing that uses 100% of the CPU? It's very possible that your system is infected.

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#2
January 18, 2012 at 16:26:16
Hi!
I always have a dual core CPU. No I dont use any software that specially uses 2nd core, but my other computer, who also have dual core, works much different - faster and in task manager CPU usage shows totally different than this pc with problem.
Usual programs, but especially youtube - when I start to watch video - my sound is terrible for a wail - my CPU readings - 1st core - 100%, but 2nd - 3%... it isnt normal, because 2nd pc works fine... I have latest drivers and so on, but... I dont know what to do anymore...
About infection - dont think that it is virus - my AVG works perfect...
I guessing that the problem is in hardware, not in soft, but - it is only guessing...

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#3
January 18, 2012 at 19:18:10
Run Malwarebytes to double check for infections.
Reset BIOS to defaults in case there is an incorrect setting(s) there.
Stop unneeded programs from starting with Windows. Run msconfig and go to start tab and uncheck all except Microsoft and your antivirus program.
Do a disk clean up if you have not recently.

You have to be a little bit crazy to keep you from going insane.


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#4
January 19, 2012 at 12:57:58
Im sorry to tell, but - still nothing :( And I dont know what to do anymore....

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#5
January 19, 2012 at 20:31:05
Is this something new that has happened only recently?

Have you made any hardware changes recently or just before this happened?

Is this a recent build (rebuild)? New or used components? Ebay?

Have you removed the CPU's heat sink or the CPU itself (recently or ever)?

Install CPU-Z and see what it reads for each core and report this.

Check voltages in BIOS, they need to be within 10% of nominal.

Answer each separately please.

You have to be a little bit crazy to keep you from going insane.


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#6
January 21, 2012 at 08:17:55
Is this something new that has happened only recently? NO, it happends a year or two - I just now start to help this person who owns this pc.

Have you made any hardware changes recently or just before this happened? NO

Is this a recent build (rebuild)? New or used components? Ebay? NO

Have you removed the CPU's heat sink or the CPU itself (recently or ever)? Not now, not ever.

Install CPU-Z and see what it reads for each core and report this.

Number of processors 1
Number of threads 2

APICs
-------------------------------------------------------------------------

Processor 0
-- Core 0
-- Thread 0 0
-- Core 1
-- Thread 0 1

Processors Information
-------------------------------------------------------------------------

Processor 1 ID = 0
Number of cores 2 (max 2)
Number of threads 2 (max 2)
Name Intel Core 2 Duo E4600
Codename Conroe
Specification Intel(R) Core(TM)2 Duo CPU E4600 @ 2.40GHz
Package (platform ID) Socket 775 LGA (0x0)
CPUID 6.F.D
Extended CPUID 6.F
Core Stepping M0
Technology 65 nm
Core Speed 2394.1 MHz
Multiplier x FSB 12.0 x 199.5 MHz
Rated Bus speed 798.0 MHz
Stock frequency 2400 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2048 KBytes, 8-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 12.0x
Max VID 1.325 V
# of P-States 0

Check voltages in BIOS, they need to be within 10% of nominal. Voltage is in range, without any problem...

I checked BIOS version and found that is an update.. perhaps it will work, but I will know it only on Monday...


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#7
January 21, 2012 at 18:55:20
Before trying the BIOS update, try to clear CMOS and then reset defaults (again). Check your manual, but clearing CMOS is usually done by disconnecting power from the power supply and then either momentarily moving the CMOS jumper to the alternate pin and replacing it to normal or removing the CMOS 'coin' battery, pressing the start button, and replacing the battery. When power is returned, reenter the BIOS and reset defaults or "optimum settings".

You have to be a little bit crazy to keep you from going insane.


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#8
January 25, 2012 at 09:12:11
Tryed - no result...
Havent try only bios update and win reinstall :D

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