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gerald

Y510p Ultrabay Graphics card

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On 11/28/2018 at 7:58 PM, manolis said:

@ZakynHello, so did you finished the project? because i have ordered ub and will try to make it myself

Hi, I didnt have much time recently. I want to work on that during Xmas. I already updated my schematics and now I need to redraw a board. When I finish I plan to do some tutorial for everyone (if I will be successful :) ).

On 11/29/2018 at 8:53 AM, blackranger said:

Hi Guys,

 

i have y510p i5 4200M, Dual GT750M , version

I recently ordered GDC V 8 Beast mpcie , but i know the GT/s is not good. 

 

Just want to know whether cpu bottlenecks with 1060 or due to low GT/s of mpcie it doesn't affect ?

 

 

Any update on new production or updated version of ultrabay adapter? 

 

I've seen some guys making their own, may i know where to get the parts ?

 

Thanks in advance

I got my ultrabay conenctor from: https://www.verical.com/pd/te-connectivity-power-connector-2199015-1-4586152

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@Zakyn On the website you mentioned above, it says that minimum order is 7 pcs. Did you order 7 pcs, or there was possibility to order just one?

Wish you good luck in your project.

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@Zakyn If you have plans to fabricate a few more to sell, i think we can nego on the price later. 

 

Good luck on your project too.

 

Edit: Or maybe you can share a full tutorial on how to fabricate the adaptor ourselves, given that we get the ultrabay connector from the link above.

Edited by jxfong2

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21 hours ago, MADNESSS said:

@Zakyn On the website you mentioned above, it says that minimum order is 7 pcs. Did you order 7 pcs, or there was possibility to order just one?

Wish you good luck in your project.

Yes, I have 7pcs. But I wanted more than one so its not problem. I already have one soldered in my first not working version :) So I hope 7 will be enough :D. 
This site was first where I was able to get less than hundred pcs.  

Edited by Zakyn
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@Zakyn Which transistor did you used and it did not worked? maybe it was not the proper because the model BC847C have several, some are 90mV and some other 600mV, also they differ on Hz here

Also if i understood the board is functioning on 25V so the resistors should be the appropreate and with how much tolerance? 

I am looking the geralt's schematics v.2

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On 10/22/2018 at 9:05 PM, High_Voltage said:

Hi, @Zakyn, I had a look at your schematic. Not really going to check your routing to the PCI-E pinout, let's hope it is correct. Also, I hope that you are aware that the high-speed PCI-E lanes have to be routed in differential pairs with length matching (KiCad has a special feature for that) (also make sure to match the length among all the pairs).

 

Now, speaking of the necessary pull-up resistors on the Lenovo side, as it has already been shown by @gerald while I was writing this response, here's the situation with the additional resistors and circuits:

  • 1k pull-up to +3V at pin 70 of the Ultrabay (pin SUSP# in Lenovo motherboard schematic), this is R4 in Gerald's schematic. (note that Gerald's schematic uses different pin numeration for some reason)
  • R1, R5 and R6 are not installed on Gerald's adapter board, so you can just ignore them. These pins although labelled sensibly, don't appear to make any difference to ultrabay functionality
  • R2 used to be installed in V2 of the adapter, but in order for it to work properly, this pin must be open. Do not install!
  • 1k pull-down to ground from Ultrabay pin 94 (SLAVE_PRESENT#), this is R3 in Gerald's schematic
  • Wire Ultrabay pin 98 (PLT_RST#) to PCI-E Reset pin, additionally pulling the signal up to +3V3 (that comes from your power supply)

 

To summarise, out of all of the resistors, you only need two (R4 and R3), plus the Reset circuit.

 

Also, you don't have to route SMB bus to the PCI-E slot as it is redundant. Better make solder pads for it so it can be used with my hardware mod.

I just did last check before making PCB and I see reset circuit (98 PLT_RST#) on gerald's schema is actually connected to S_DGPU_RST (pin 92). I am little bit confused which is the righ pin. Can you give me a hint please?

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@Zakyn I'm not sure. Guessing that @gerald has experimentally determined that out of the two possible reset pins this one is the right one.

 

Actually, I'm also currently designing an Ultrabay adapter. In my design I decided to go for @gerald's choice of Reset pin, but pull it up to the standby +3V (pin 64 on Lenovo schematic). There is already a pull-up on the motherboard for this pin, I've added this one just in case. Probably going to try with this pull-up unpopulated first...

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Thanks and good luck to all ultrabay-pcie adaptor makers. Meanwhile waiting for new batch of adaptors or tutorial of how to do so, I just ordered a SilverStone 500W SFX-L PSU and a Cougar QBX m-itx case to be my eGPU enclosure as I dont have the skills to make myself one. Ryzen 3000 chips are coming next month along with AMD new Navi GPUs, guess it is a good time to buy an AMD GPU with same performance as RTX cards at half of the prices as our egpu, if the leaks are real.

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13 hours ago, High_Voltage said:

@Zakyn I'm not sure. Guessing that @gerald has experimentally determined that out of the two possible reset pins this one is the right one.

 

Actually, I'm also currently designing an Ultrabay adapter. In my design I decided to go for @gerald's choice of Reset pin, but pull it up to the standby +3V (pin 64 on Lenovo schematic). There is already a pull-up on the motherboard for this pin, I've added this one just in case. Probably going to try with this pull-up unpopulated first...

Ok, I will make some pads for 0R resistors to choose between pins. thanks for response

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