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Topic Title: Phenom II X6 1035t Core Issues
Topic Summary: Windows only sees 4 of the 6 cores!
Created On: 02/18/2012 12:20 PM
Status: Read Only
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 02/18/2012 12:20 PM
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Posts: 3
Joined: 02/18/2012

This may sound a little weird but I lost my window of time to return my proc. to Newegg so I am recurring to this forum to see what can be done. First my system:

-above mentioned cpu
-Asus M3A78-EM mobo (socket AM2+)
-4gb DDR2 800 Crucial Ballistix ram
-Asus EAH 6850-1gb vid card
-Samsung 1tb-32mb cache hdd
-Samsung 19" led monitor.
-Latest Bios from Asus which supports this cpu (2701 from 10/10).
-Windows 7 x64 and Windows XP Pro x86 in dual boot.

When I upgraded yesterday from my Athlon II X4 630 (2.8ghz), my system accepted the new processor without a problem (yay!). Checking the Bios, the processor is recognized as such and the core count is 6. However, my Aida64 (Everest before) gadget could only read 4 cores. I double checked with the latest CPUz and also, only 4 cores are recognized. With the latest AMD Overdrive, the same.

I also noticed that Nova Bench produced about the same readings as my older proc. just slightly higher (L3 cache which the Athlon II does not have?).

Stressing the cpu with Heavyload did not make the cores "appear" (in case they were asleep) and I noticed that turbo-core did not kick in to increase the clock speed staying almost constantly at 2615-18. No overclocking was tried nor will be, due the age of my mobo.

I set windows update to check if the processor driver was the adequate one and it said that I have the latest and correct one. I know there is no software to download and that Windows should recognize the cpu which it does but not completely. The funny thing is that the Windows Device Manager DOES see the full 6 cores!

So I don't know how to proceed from here and any pointer(s) would be appreciated, especially from the AMD crew.

Thanks in advance.

Cheers and Saludos
 02/18/2012 08:27 PM
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Posts: 15
Joined: 02/14/2012

I have been chiming in here for about a week now and I have not seen any "AMD crew" coming to the rescue... lol man.

If I read correctly when I signed the user agreement for this forum, it stated this forum was not monitored by any such help as you describe.

Is the new processor you just dropped in on the QVL list for your mobo?


MB: ASRock 970 Extreme3
CPU: Phenom x4 970 BE Denab / CPU cooler - 92mm Zalman CNPS9500A-LED
RAM: 16gb (4x4) GSKILL Ripjaws 12800CL9Q-16GBRL
Video: XFX RADION HD 6770
Audio: Creative Sound Blaster X-Fi Titanium Fatal1ty Pro
HD: OCZ Vertex 3 SATA3 120gb
PSU: Corsair Pro Series HX750
OS: Win 7 Pro 64 bit
Display: ASUS VW246H
 02/19/2012 06:24 PM
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Posts: 3
Joined: 02/18/2012

It is. Well, supposedly the AMD guys drop in but don't say when.

Anyways, all help is good.

Cheers and Saludos
 02/20/2012 08:47 AM
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Posts: 3641
Joined: 11/19/2004

Hi, we did have a post on here somewhere about editing the registry to make the OS (probably for Win XP) see all 6 cores after fitting a new cpu. I can't seem to find it now unfortunately.

You don't say if this is on Win 7 or XP. For Win 7 what you could try is uninstalling your cpu in device manager and rebooting to make the OS redetect your cpu. Being as your bios sees the correct cpu that should be enough I think. If not then try msconfig/boot/advanced options and tick/untick the number of cores box and reboot and see if that helps.

Good luck and let us know what happens.

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1100t on M5A99x-EVO with 2x4gb and 6870 running Win7 on Force120 ssd in Corsair 600t cooled by H100. Folding for team 34106
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