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Rohnin

6470b with i7

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Did someone tried to put i7 quad into 6470b? I am afraid because in manual of this model are only dual core models. I want to make eGPU with this model but without i7 its pointless.

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Hey Rohnin. I got curious as I've been considering a similar upgrade for my system, so I checked your manual again anyway:

http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c03564727-1.pdf

On page 2 it does have an i7 quad in there:

● Intel® Quad Core® i7-3540M 3.00-GHz processor (SC turbo up to 3.70-GHz; 1600- MHz FSB, 4.0-MB L3 cache, 35 W)

Should work. :joyous:

Although why do you say an i7 is a requirement for an eGPU?

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Hey Rohnin. I got curious as I've been considering a similar upgrade for my system, so I checked your manual again anyway:

http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c03564727-1.pdf

On page 2 it does have an i7 quad in there:

● Intel® Quad Core® i7-3540M 3.00-GHz processor (SC turbo up to 3.70-GHz; 1600- MHz FSB, 4.0-MB L3 cache, 35 W)

Should work. :joyous:

Although why do you say an i7 is a requirement for an eGPU?

i7-3540M is a dual-core 35W CPU

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Oops you are right:

ARK | Intel® Core

Probably a typo in the manual, and since there is no such thing as an i7-3540QM.

[ATTACH=CONFIG]9621[/ATTACH]

Anyway should be plenty of power though right?

A i7-quad can be almost twice as fast. We've had success retrofitting a i7-quad to a smaller Ivy Bridge 12.5" HP 2570P. It too was never factory shipped with one but it works and works well. See http://forum.techinferno.com/hp-business-class-notebooks/2537-12-5-hp-elitebook-2570p-owners-lounge.html#post33901

Though you can see there it does help if the cooling subsystem is modified to deal with the higher temperatures in that small chassis.

If that is a concern then consider installing a 35W i7-quad (i7-3612QM or i7-3632QM). Though the 6470B has a larger chassis and (presumably) bigger heatpipe so may be work fine with a 45W i7-quad??

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Thanks Nando. That makes sense since it has twice the cores/threads.

Now since the OP was asking in the context of an eGPU implementation, I grabbed a few samples from the leaderboards:

DX9

15" Lenovo T520 i7-2860QM 2.5 16 GTX680@x1.2Opt 23749 226.8 Kuro-D & & QM67 EC Win7/64
12" Lenovo X220/T i5-2520M 2.5 8 GTX680@x1.2Opt 18078 144 arsenal243 rhx123 QM67 EC Win7/64


DX10

15" Lenovo T520 i7-2860QM 2.5 16 GTX680@x1.2Opt 29463 295.3 Kuro-D & & QM67 EC Win7/64
12" Lenovo X220/XT i5-2520M 2.5 8 GTX680@x1.2Opt 25847 197.4 arsenal243 rhx123 QM67 EC Win7/64


DX11

15" Lenovo T520 i7-2860QM 2.5 16 GTX680@x1.2Opt 8626 2441 Kuro-D & & QM67 EC Win7/64
12" Lenovo X220/T i5-2520M 2.5 8 GTX680@x1.2Opt 8585 2347 arsenal243 rhx123 QM67 EC Win7/64


So if I upgraded from an i5-2520M to a an i7-2860QM, from an eGPU perspective it seems a Quad can deliver ~31% improvement on DX9, ~14% on DX10, and <0.5% on DX11.

Great advice on the heat/cooling consideration... will share back findings here when I get to Phase 2 (CPU upgrade) :).

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Just a quick update, the upgrade to a quad core CPU worked:

http://forum.techinferno.com/diy-e-gpu-projects/2109-diy-egpu-experiences-%5Bversion-2-0%5D-254.html#post79680

The performance gains were inline with expectations with a 34% improvement on DX 9, and a measly 0.6% on DX11 (Graphics Score).

No mods to the heat sink were required. Temps are looking OK and should drop a bit further after the thermal paste settles.

post-19997-14494996895026_thumb.jpg

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Excellent. I was looking for potential cpu's for upgrade in my HP probook 6470b (Other than the ones listed on HP website on product review) . So, glad that I found this thread.  Is there any else who successfully replaced the cpu on 6470b? Please share the processor number. 

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On 5.07.2016 at 3:12 AM, Kerio said:

Excellent. I was looking for potential cpu's for upgrade in my HP probook 6470b (Other than the ones listed on HP website on product review) . So, glad that I found this thread.  Is there any else who successfully replaced the cpu on 6470b? Please share the processor number. 

I've just replaced i5-3320M in my Probook 6470b for i7-2860QM. It works.

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