DIY eGPU experiences

[Joss27]

Hey joss27 it seems that we have the exact same problem. I hope there is no major issue with the new 2.1a pcb...

yes me too

[User Retired 2]

yes me too

If the expresscard slot is enabled and no device is appearing then it's likely the PE4L 2.1 is faulty. Best way to confirm would be to try it in another system's expresscard slot.

If faulty, then time to RMA it. I've advised hwtools about quality issues with the PE4L 2.1 with them advising of an improvement to their manufacturing. See the update for pics and more details.

[Joss27]

i can't try it in another system's expresscard slot.
when i plug PE4L in expresscard slot, without gpu, on the PE4L, D1 and D3 are switched on.

[User Retired 2]

i can't try it in another system's expresscard slot.
when i plug PE4L in expresscard slot, without gpu, on the PE4L, D1 and D3 are switched on.

What LEDs switch on when you plug a gpu in and attach it to the expresscard slot? Have you set SW2=2-3 (x16)? Mine wouldn't work with SW=1-2 (x1), which is the default.

[Joss27]

with or without gpu, D1 and D4 swich on.
sw2 is on 2-3 but i've tested sw2 on 1-2 but nothing
i've try with sw1 on 1 and 2 but nothing

[Joss27]

i try this :
turn off pc
plug egpu with gpu
turn on egpu, D1 D3 and D4 switch on
turn on pc, D1 and D3 switch on, D4 switch off

[arkantos78]

Ey What Gpu 6770 or Gts 450 For a

Core 2 Duo T6670 2.20ghz
4Gb Ram
Windows 7 64Bits
Intel 4500mhd

[Xav]

Hi all,
i need some help. I have the new PE4L 2.1a.

My setup is a Lenovo X220T and a EVGA 560 Ti. I've tried every suggestion from this thread but can't get it to work. (Unfortunately this is my first egpu experience, so i cant tell if it's is something wrong with the PE4L or my hardware)

What I did do:

1)
Hooked everything up (tested with two different PSUs)
powered the epu on
hotplugged the expresscard while win7 was running

2)
did hot/cold boot while the egpu was running

3)
suspended
turned egpu on
resumed

In every case no card is detected. So i even can't install any drivers. Looked up the pci-e connections in aida64 and there is also no detected hardware. Looked it up in Linux with lspci _NO_ pci device found. As if no card is connected at all.
I've tried to set gen1 connection in the bios and tried drifferent settings on the pe4l itself (x1 card only) What does this delay switch mean?

Please can anyone help me? I would very much appreciate it!

Thanks very much!

+1 to this problem too. my setup is similar and i get no detection. i have a PE4H 2.4 that i alternate it with and verified that the rest of my system is working correctly.

I noticed between nando's 2.1 and the 2.1a we have been receiving has some slight differences - 2 top left pins of U3 is being soldered on nandos, c10 on 2.1a is a blank (nando's had some resistor?), and some other differences.

Not sure if all the modifications are intention, but its weird how the 2.1 is working but not the revised 2.1a.

[cloudtail]

Go to Pre-Purchase FAQ, look in "2. How can I check if my notebook is compatible with an eGPU?". Compare your TOLUD with the TOLUD table.

The table only has 3 values, so am i right to assume that since mine starts with B (BB800000) TOLUD should be < 3 gb?

[kizwan]

There is a text after the table. You should read it.