CPU upgrade clevo p170hm?

I need advise for my choice: I5 2520m ---->i7 2720qm but I don't now which one to buy? there are OEM, ES,BPA, PGA, I don't understand if it will fit on my mobo?

 

you'll need a PGA cpu because BGA cpu are soldered on board, the ones you found on ebay are all PGAs, and they sometimes solder BGA cpu with leg pins to convert it to PGA with much lower lifespan

OEM cpus are mass production level CPUs with advertised clock speed and features
ES cpus are engineering samples, they are prototypes tested for hardware stability but if they go up on ebay they work, just tend to have higher temperature and sub par clock speed steppings (lower energy efficiency, consumes more power at idle) though some good ones will have an unlocked multiplier for intel XTU overclocking and is of really good value

the last one is QS cpu, they are qualifying samples meaning the hardware are set and requires software programming for fine tuning such as minor speed stepping config and software support, they tend to offer best value/stability ratio since the ES chips have risk of being unstable and OEM chips tend to be more expensive but only with slightly improved stability over the QS cpu

OEM, QS, and ES chips you find on ebay are PGA CPUs and will fit in your mobo if and only if they are sandy bridge mobile CPUs, you can check the photos to see if they have leg pins, the gold pins sticking out in the bottom where the BGAs don't

 

You would also need to reflash your BIOS.

 

One more thing to double-check, is whether your notebook came with a different motherboard when configured with a quad-core processor. My HP was offered in both dual- and quad-core configurations, and that was the case. The best place to ask that question would probably be our Sager/Clevo forum:
Clevo Forum and Sager Forum

 

thanks, but I have the latest bios already, so it wil be plug & play? don't u think?

 

No it won't. BIOS is a piece of software that does all the initializations of your hardware when you press the "On" button. It is what runs first on your computer/electronic device, before everything else. It needs to know what kind of CPU you have because it needs to know how much voltage to set to the VDD and VCore pins on the CPU's package. It also needs to know what peripherals/hardware your CPU supports. In other words, BIOS is usually very specific to one set of CPU. You might be able to use the same BIOS for, say, the 3720QM and the 3610QM. But those processors are very similar. You are jumping architectures.

 

If a same model offered the same quad core, it is unlikely he would need to flash his BIOS.

I've bought many ES/QS chips. Honestly if it isn't DOA and survives a month, more than likely it will be fine.


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You can probably get better answer on sager sub forum, but it is just a drop in upgrade iirc.

 

I'm only worry by the heat it will bring along with the die, but I have a u3 notepal laptop cooler so don't think it will be a problem

 

Thanks to all of ya, I bought a cheap i7 2670qm on ebay for less then 100 euro and I think it's definitely worth it (if it works ), but still it is an upgrade though

 

Remember to have paste ready and may aswell clean the vent/repaste gpu when cracking it open.

 

thanks for the advice, I'll check that, I already upgraded gpu 6970m to 7970m so this is already done, I will use rest of my ITC DIAMOND paste for the cpu, very cool!