Hi all, another new user here. I would like to thank Tech Inferno Fan for all his hard work, this egpu project is what led me to finally register at techinferno.
I have the PE4L v2.1b (expresscard version) and my Lenovo X230 with the following specs:
Windows 8 64-bit
Intel Core i5-3320M
Intel HD Graphics 4000
4GB RAM
Now I am planning to eventually buy a better graphics card (maybe Nvidia for Optimus) but before that I just wanted to make sure it works with the card I took from my old desktop, a Radeon HD 4830, which should still be a lot better than Intel's integrated graphics. I'm also using the desktop's Antec EA-500 power supply. I have a problem getting it to work though.
First I tried booting with the graphics card connected and powered on, it bluescreened with "0x116: VIDEO_TDR_ERROR". Then I tried booting with it connected but not powered on, and Windows boots to a black screen with a very slow mouse cursor and nothing else. Then I tried booting with it disconnected, going into standby, powering on the graphics card and connecting it, and resuming. Windows autodetects it and installs drivers and the graphics card is shown in Device Manager, but it's device status is "no drivers are installed". Monitors connected to the graphics card aren't detected (the internal display running on integrated graphics still works).
Then I tried installing AMD's Windows 8 driver (the one for older Radeon HD cards including 4000 series), but the install just gets stuck on a progress bar. I tried extracting only the display driver from the exe and using Device Manager to install it, but that got stuck too. Any suggestions on what to do? I'm not concerned with trying to get the internal display to work with the external graphics, I just want the graphics card to output to a monitor. Any help is much appreciated.
On a side note, I'm using a 256GB mSATA SSD that I installed myself as my main Windows and programs drive, and the standard 2.5" HDD for extra storage. The BIOS occasionally has problems detecting the SSD ("2101 detection error on HDD2"), so far this seems to happen right after I do a forced shutdown (happened once in the process of trying to get e-gpu working). From what I've read, reseating the SSD, even if it was already seated correctly, fixes the problem. But this is too time-consuming because I have to remove the keyboard and palm rest to reach the mSATA slot. What I do instead is reboot a few times, fiddle with the boot order in BIOS, and just let the laptop sit for a while (not sure which of these steps actually helps), and in a short time it fixes itself. But this is a somewhat worrisome problem.
By the way, it looks like hwtools just started selling PE4H v3.2 right after I got my PE4L. They say it's PCIE 2.0 compatible, and there's the option of an enclosure. Still looks like you need an ATX power supply if your graphics card need 6-pins though, and I'm not sure if there's room in the enclosure for the ATX power supply.