Could you please share details on where did you get a TRIM-enabled firmware for this drive and how did you remove SATA-PATA bridge chip?
Do you have a X41 or X41t?
For enabling TRIM, this thread here, specifically, the post by Blue_Frog on 02-08-2011 04:20 PM TRIM firmware for the 128 GB Samsung SSD??
Ok everyone, here is how to flash for those that cannot be done with hotplug, as the serial number is always read correctly.
THIS REQUIRES THAT HOTPLUGGING YOUR DRIVE DOES NOT CAUSE YOUR MACHINE TO REBOOT!
Ok, let me repeat, if you boot your machine from USB with your SSD out of the machine and plug in your hard drive and your machine does an automatic reboot, do not proceed, you will brick your drive until you get another machine to fix this. If your machine does not automatically reboot when plugging in the SSD at a DOS prompt, then you can proceed.
1. Boot to your usb with the drive in the laptop. (all other drives out and Compatibility set in bios)
2. Run maindiag.exe, you will see the model/serial/firmware populated. (this is ok this time)
3. Choose Initialize Firmware (2) then Main Firmware (1), then (Q) to quit. (These steps will fail and that is ok, you just mismatched your drive and confused it which is what we want)
4. Attempt reboot - your machine should not boot, not even from the thumb drive. You will get a LOCK symbol in the upper left asking for a password. If you get this, fantastic, that is what you want! Do not try to type passwords there to unlock it, I don't know how many attempts you get until it locks up.
5. Turn off laptop and pull SSD hard drive out of laptop.
6. Reboot to USB drive (with no hard drive installed)
7. After you get to DOS prompt, hotplug in your SSD hard drive.
8. Run maindiag (model/serial/firmware will be blank this time) and choose (2), (1), (4), (Q)
9. Reboot to USB with SSD drive in and run maindiag, should see model/serial/firmware populated correctly. (VBM19C1Q)
10. Power off, change bios back to AHCI, restore system
- The X41 doesn't have an 'AHCI' option in the BIOS. You can skip that part.
- I didn't physically remove / attach the drive where that's required. I just pulled one of the power wires for the drive out so it wasn't powered, and plugged it back in when needed.
- Other than that, it worked just has he describes in the post.
I am not sure what firmware the SSD had on it. What I put on that supported trim is 'VBM19C1Q'. From that same thread, the post by 'JayBeeCZech' on 02-09-2012 10:18 PM has a link to a zip file with the firmware and the USB boot utility.
You create a bootable USB stick using the util, then add the firmware files & 'maindiag.exe' to the USB afterwards. Again, it went pretty smoothly.
That got the drive to support TRIM. From there, I just googled and followed one of the many links to turning TRIM on in win7.
Removing the PATA bridge was a mess. I do not have the proper tools at all. My X41 was almost disposable, so I gave it a go. Soldering iron doesn't work. Heating the chip directly did not work for me either. I tried cutting the pins, but after a few swipes, things get mashed together and it's tough to see if it's even working.
After I thoroughly fu'd my mobo up, I ripped the chip off forcibly after cutting through all the pins as best I could. Started prying with a screw driver and it came off in pieces. Figured I had nothing to loose. Surprisingly, after getting the chip out of the way, i could pretty easily remove legs and center piece of the chip pretty easily with an iron and thing's cleaned up fairly well. I would *not* recommend this method, but somehow it worked for me.
Mine is an x41. non-tablet. the case is noticibly narrower on the side where the wires have to connect to the drive. I took an mSATA cable and cut it down entirely to just the small piece of connector that goes into the drive and the pins. I bent the pins into a 'U' shape to reverse them and there was just enough room to clear the side of the case. Can kinda see it here:
I also had to trim 1 corner of the SSD case to clear a screw boss in the case. Not a big deal. It did not go into the board inside the SSD, just the case.