Yes, in addition to A10-5750M based G505S there are also A8 and A6 ones. But there are some possible problems regarding them: 1) their price is just slightly lower than with A10 - as result, price/performance ratio seems to be worse for these models 2) I'm not sure if it is possible could upgrade their APU from A6/A8 to A10-5750M after purchase 3) most importantly: some parameters inside a coreboot source code for G505S could be A10-specific ; I am not sure if a current "A10-inclined build" would run on A8/A6 out of the box, without additional tweaking
A question from my last letter - about compatibility of G505S coreboot build with various graphics solutions found in different modifications, is not addressed yet... to remind, there are three groups of modifications: *) only 8650G (no dual graphics) *) 8650G + AMD HD 8570M (dual graphics) *) 8650G + AMD R5 M230 (dual graphics, slightly faster) P.S. Below is an =incomplete= list of SKUs for A10 G505S models that I was able to find. If there is a shortage in your country, maybe this list could assist you in search (those mods with windows 8 are about $50 more expensive and support evil M$, please dont get them ;-) ) 1) only 8650G (no dual graphics) + 4GB + FreeDOS = 59-410323 2) only 8650G (no dual graphics) + 8GB + FreeDOS = 59-405169 3) only 8650G (no dual graphics) + 4GB + Windows 8 = 59-380131 4) only 8650G (no dual graphics) + 6GB + Windows 8 = 59-373010 / 59-406417 5) only 8650G (no dual graphics) + 8GB + Windows 8 = 59-403088 6) 8650G + AMD HD 8570M (dual graphics) + 4GB + FreeDOS = 59-405168 7) 8650G + AMD HD 8570M (dual graphics) + 6GB + FreeDOS = 59-409773 8) 8650G + AMD HD 8570M (dual graphics) + 8GB + FreeDOS = 59-380146 / 59-387536 9) 8650G + AMD HD 8570M (dual graphics) + 4GB + Windows 8 = 59-407135 / 59410966 10) 8650G + AMD HD 8570M (dual graphics) + 6GB + Windows 8 = 59-382102 11) 8650G + AMD HD 8570M (dual graphics) + 8GB + Windows 8 = 59-401209 12) 8650G + AMD R5 M230 (dual graphics, slightly faster) + 4GB + FreeDOS = 59-410881 13) 8650G + AMD R5 M230 (dual graphics, slightly faster) + 8GB + FreeDOS = 59-410885 14) 8650G + AMD R5 M230 (dual graphics, slightly faster) + 4GB + Windows 8 = 59-408604 15) 8650G + AMD R5 M230 (dual graphics, slightly faster) + 8GB + Windows 8 = 59-410883 On 6 April 2015 at 14:20, Emilian Bold <[email protected]> wrote: > I can confirm I'm still able to buy a G505S in my country but it seems to > have the quad core A8-4500M (not the A10) with a dedicated Radeon HD 8570M. > > It's a decent machine and it would be great to have it on the official LTS > list. > > Speaking of the list, I cannot find any store selling the Toshiba > Satellite C50D-A mentioned in the wiki. > > --emi > > > On Mon, Apr 6, 2015 at 1:45 PM, Vladimir <[email protected]> wrote: > >> Dear coreboot developers, >> >> Francis Rowe (main Libreboot developer) has hinted an idea about adding >> Lenovo G505S to Coreboot LTS Candidates list of laptops, which is hosted at >> MrNuke's User talk coreboot wiki page. I believe it is an excellent idea, >> because: >> >> *1)* Lenovo G505S contains AMD APU, so there is no need to deal with >> Intel ME/AMT so-called "features" >> *2)* this APU has Richland architecture: as result (unlike the more >> recent AMD offerings) it doesn't have "AMD Secure" feature -- based on ARM >> Trustzone technology which already has some exploits against it; there are >> security concerns about ARM Trustzone that are similar to concerns about >> Intel vPro "feature" (remote management etc.) >> *3)* this APU is A10-5750M, the most powerful mobile APU among Richland >> designs - as result, this laptop is still very competitive regarding its >> performance, and also price/performance >> *4)* Unlike the older HP M6-1035DX amd laptop, Lenovo G505S seems to be >> a very popular model: even now, more than 1.5 years after its' >> introduction, there are >200 Internet shops in my large city still selling >> it new in box - not used/refurbished >> *5)* Lenovo G505s works without microcode updates, and already has a >> working Coreboot build (although Video BIOS and SMU firmware have blobs >> that are still not reverse-engineered; and some minor issues - e.g. ACPI >> not perfect yet ) >> >> These great points are making me wonder, why this interesting laptop >> still haven't been added to that LTS Candidates list? Does it fail to meet >> some requirement for LTS candidates in a not-obvious way >> (RYF-certifiable,Sturdy,Long shelf-life,Cool factor) or there is some >> not-listed AMD laptop that could be a better candidate? >> >> By the way, I have discovered that there are many modifications of Lenovo >> G505S, which could be divided into three primary groups by their major >> difference - GPU *(minor differences, such as different size of RAM or >> hard drive, are not interesting)* >> GPU modification groups: >> *1)* only 8650G, which is built-in into APU (no dual graphics) >> *2)* 8650G + AMD HD 8570M (dual graphics) >> *3)* 8650G + AMD R5 M230 ( dual graphics, slightly more powerful than >> "2)" ) >> Are these modifications all supported by Coreboot? And would be there any >> additional difficulties regarding modifications with dual graphics? >> >> Your answers and opinions will be very welcome >> Best regards, >> Vladimir Shipovalov >> >> -- >> coreboot mailing list: [email protected] >> http://www.coreboot.org/mailman/listinfo/coreboot >> > >
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