Update: No BIOS mod was required. It was just msconfig (mis)configuration.
Hi there,
I just bought an Intel i7 2860QM to upgrade my laptop, but I found the BIOS only allows 2 working cores (4 threads). Would it be possible to modify it so I can get the 4 cores and 8 threads?
Here are some details from CPU-Z
And the BIOS - R0242V2
http://sonyvaiodriver.com/category/sony-...e-drivers/
Thank you in advance.
Do you know of any similar mod? I guess it should be possible. Any link I could use to see if I could do it myself?
I guess this limitation was imposed by Sony to have power consumption under control (the original i7 2620M had a TDP of 35w and this one is 45W), but since I'm using an external GPU, I guess i have more room.
Thanks.
Disable CPU Core Parking feature .
(09-13-2015, 02:34 PM)DeathBringer Wrote: [ -> ]Disable CPU Core Parking feature .
Hey! Thanks a lot for the suggestion. I had never heard about it before. Unfortunately, I did a bit of research, tried unparking them all but I still only see 4 cores in the task manager... But now I have doubts about the actual root of the limitation. Taking a look at the device manager, it shows 8 logic cores
Could it be something related with the OS instead of the BIOS? I'm running a clean install of Windows 7 Enterpirse x64.
(09-16-2015, 01:45 AM)DeathBringer Wrote: [ -> ]Try this:
Quote:Open regedit and navigate to
"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\ PowerSettings\54533251-82be-4824-96c1-47b60b740d00"
Then search for "0cc5b647-c1df-4637-891a-dec35c318583"
and set "Attributes" from "1" to "0"
Then open your energy options. You should have a new entry now:
Set the "Processor performance core parking min cores" to 100%
and reboot.
Still no luck
I tried
http://www.coderbag.com/programming-c/di...ng-utility and
https://bitsum.com/parkcontrol/, and both report only 4 cores.
Any other ideas?
No more ideas. Device manager shows 8 logic cores then it isn't a BIOS's problem. So It's offtopic.
(09-17-2015, 12:05 AM)Cheve Wrote: [ -> ] (09-16-2015, 01:45 AM)DeathBringer Wrote: [ -> ]Try this:
Quote:Open regedit and navigate to
"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\ PowerSettings\54533251-82be-4824-96c1-47b60b740d00"
Then search for "0cc5b647-c1df-4637-891a-dec35c318583"
and set "Attributes" from "1" to "0"
Then open your energy options. You should have a new entry now:
Set the "Processor performance core parking min cores" to 100%
and reboot.
Still no luck
I tried http://www.coderbag.com/programming-c/di...ng-utility and https://bitsum.com/parkcontrol/, and both report only 4 cores.
Any other ideas?
check msconfig?
also whats the taskmanager showing now?
just to make sure. you have 4 cores. and 8 threads. that's how it should be reported too. you don't have 8 cores.
(09-17-2015, 05:29 AM)GizmoTheGreen Wrote: [ -> ] (09-17-2015, 12:05 AM)Cheve Wrote: [ -> ] (09-16-2015, 01:45 AM)DeathBringer Wrote: [ -> ]Try this:
Quote:Open regedit and navigate to
"HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\ PowerSettings\54533251-82be-4824-96c1-47b60b740d00"
Then search for "0cc5b647-c1df-4637-891a-dec35c318583"
and set "Attributes" from "1" to "0"
Then open your energy options. You should have a new entry now:
Set the "Processor performance core parking min cores" to 100%
and reboot.
Still no luck
I tried http://www.coderbag.com/programming-c/di...ng-utility and https://bitsum.com/parkcontrol/, and both report only 4 cores.
Any other ideas?
check msconfig?
also whats the taskmanager showing now?
just to make sure. you have 4 cores. and 8 threads. that's how it should be reported too. you don't have 8 cores.
Sure, 4 cores/8 threads. But everywhere I check (task manager, msconfig, CPU-Z, those unparking apps), except for the Device Manager, shows 4 threads (2 cores/4 threads).
I would like to check with my desktop computer what does the device manager show if I limit the number of cores from BIOS, but I'm currently far away from it for the following weeks. Could anyone try that for me, please?
I managed to unpack my BIOS, but need to research what should I look for.
Cheve, show a screenshot of msconfig under button
Advanced options on current OS in
Boot tab. E.g.