HCao

On 2018/8/28 at 3:51 PM, Andrew54 said:

Great, thank you for the suggestions! So just to clarify, mine is definitely version 2 right? I did buy it pretty early on, and I wouldn't want to modify version 1 if it doesn't work. Hopefully version 1 would say Ultrabay/1 on it

Yeah, yours is version/2, same with mine. It has "version/2" on the board. Since you are using AMD card, why not use modified 2.07?

FYI: To convert version/2 to version/3(ish) is pretty simple. Simply removing that 1k resistor will do the work.

On 2018/8/16 at 12:54 AM, HCao said:

Thank you for the explanation! Will try it soon.

Quick update:

I have a version/2 adapter. I removed that resistor and tested a GTX 1070 and a GTX 970, both successful.

GTX 970 is pretty straight forward, install the card, boot into system, install the latest driver, disable GT 750M, bingo.

GTX 1070 requires a little more effort as stated in this post before. My experience is to:

1. Remove all Nvidia drivers using DDU

2. Install the older driver (something like 36x.xx)

3. Install the latest driver but don't choose clean install.

Hope it helps! And I want to say thanks to @High_Voltageand all the other guys to make this possible, great work!

Thank you for the explanation! Will try it soon.

28 minutes ago, High_Voltage said:

 

No, the modified BIOS only contains Nvidia fix, unlocked developer BIOS menu and wlan card whitelist removal, and is otherwise identical to V3.08 released by Lenovo. I don't think Lenovo has ever released fixes for Spectre/Meltdown for this computer.

 

The internal screen will work with eGPU acceleration through Optimus as long as you're using modern Nvidia card.

 

 

The BIOS mod requires version 3 of the adapter. You can easily convert your older adapter into version 3 by either cutting the track, or desoldering the resistor, as indicated in this post.

Thank you very much man! I'm reading through that long long post. I think mine is version2.

So the only difference between version2 and version3 is that resistor from 1k->10k?

And by removing the resistor or changing the resistor with higher value, the purpose is to cut that signal?

Hi @High_Voltage, first thank you guys for the amazing work!!!

I got an adapter long time ago from gerald, but as I see in this post, there exists different versions of adapter?

Does this BIOS works with all versions?

Much thanks!

On 2016/9/7 at 2:04 AM, Tesla said:

@jew2jew y510p's mobo uses hm86 chipset which is essentially same as hm87 but w/o raid support.

Back to your question. you're correct that the chipset supports PCIe 2.0 lanes only. but the ultrabay or the PCIe connection to the graphics doesn't go through the chipset. it goes directly to the cpu. and the haswell i5 or i7 that comes with this laptop does support PCIe 3.0 x16 lanes.

 

Now 8x of those PCIe lanes connects to the dedicated gpu(NVIDIA GT 755) and the other 8x goes to eGPU through the ultrabay.

 

here is a block diagram to clarify it: http://www.intel.com/content/www/us/en/chipsets/mainstream-chipsets/mobile-chipset-hm86-diagram.html

@TeslaI'm still confused about PCIe3.0. 

I'm using Y500 with GT750M, I7-3630QM,chipset HM76.

I found that HM76 supports PCIe2.0 only(https://www-ssl.intel.com/content/www/us/en/intelligent-systems/chief-river/core-hm76-ibd.html?wapkw=hm76)

but my cpu supports PCIe3.0(http://ark.intel.com/products/71459/Intel-Core-i7-3630QM-Processor-6M-Cache-up-to-3_40-GHz)

Then I checked my GT750m:

If graphics  go directly to cpu then why 750m works in PCIe2.0x8? (According to NVIDIA, GT750M does support PCIe3.0)

12 hours ago, gerald said:

Thanks a lot for your positive words!

 

I have started a new eBay offer. 

http://www.ebay.at/itm/-/191955554848?

I'm wondering whether this adapter can be used on Y500?

@gerald

How can i buy the adapter?

the ebay link seems not working 

On 2016/7/13 at 11:11 PM, Tesla said:

@ManyStrongWords I found 1.05 on a chinese website, but I couldnt download it.

and yeah, it has a good chance to work with bios v1.05 or 1.07.

1.05 is available on this website http://ideapad.it168.com/thread-5599091-1-1.html.

Hi Tesla ! Here's from China. I've uploaded this bios file to dropbox

https://www.dropbox.com/s/a0b5g5p5b0b5fh4/y510p1.05.rar?dl=0

(i've bind 4 part file into one)

Hope this helps u test the device.

I'm a Y500 user and some Chinese Y500 users are keeping a close watch on this post.

Good Luck!

On 2016/8/24 at 5:26 PM, Tesla said:

Quick Update:

I've just got my msi rx 470 and IT WORKED!

I had to uninstall nvidia drivers at first, and then i booted the laptop with everything connected, installed the drivers and boom its up!!!

I ran Witcher 3 and GTA V on pretty much maxed out settings and was getting around 60 fps. I will post benchmark numbers later.

 

So far so good. here are some pictures:

 

BIOS: 2.07. Windows 10 x64 version 1511

Amazing!!!!! Any possibility if I can buy this in China?

Hoping more information! 

PS: My English is poor, hope clear