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svl7 tell me in PM which software you used to do the modding of the main BIOS. I really want to learn this. Great work! I am going to put everything nice together in a tutorial and one package. I am also going to put your paypal donate link in my tutorial for your work. If you want to share your knowledge and allow me to put together the tutorial and package let me know. I can be os good use to you and we can be a great team. I dont want to steal your followers or fans.

svl7 can you tell me how you did the BIOS mod itself? How did you extract the BIOS from the Y500? Also what did you use to edit? e.g. Phoenix Tool to extract the modules and then a hex editor and nibitor to correct checksum? I would be glad to know this. If you simply write the software you used that's great. If you ever happen to go away I can continue support for this laptop.

Here it is svl7 Zippyshare.com - original.bin I used the top one for Windows on this link to extract it: Downloads | techPowerUp I haven't tested flashing it but if you want I can look into that as well. But I can assure you it works. Version on second card is 80.07.27.00.33 (P1304-fd10) If you make the vBIOS mod upload it on zippyshare if I do not have 5 posts by then so I can download and test it. VBIOS was saved with: nvflash --index=1 --save original.rom Flashing gives me this output: nvflash --index=1 original.rom Zippyshare.com - Capture.PNG svl7 extracting the vbios seems maybe to be invalid when trying to flash. What you however can do is extract the vbios from the actual Y500 BIOS and try to flash it directly to the Ultrabay card. I think that may work.

It's because the GPU actually throttles when on battery. It can never run at the same performance as if you were on AC power. I tested this with Dell Inspiron N5110. To be honest you shouldn't be gaming on battery anyway. I don't think it's healthy for the battery either

Overclocking support is coming soon. I found a solution to do the BIOS mod for the second card. Please refer to one of the top popular threads and stay tuned. Use driver 310.90 with nvidia inspector batch files in the main time. Overclocking is not worth it compared to using older drivers. Specially with SLI. You may get equal performance in the end because of driver optimizations. Keep that in mind.

You can always call Lenovo. Sometimes they allow to send it and you replace it yourself so you dont have to pay technicians. Dell allowed me once to replace the screen myself. So if you can't find a keyboard I would do this instead.

I know. I am trying to do my best to do some useful posts. I can be of help to this forum as well. I noticed I could extract the vBIOS from the Ultrabay SLI card using nvflash for windows which I downloaded from techpowerup. I think the command was nvflash --save original.bin After that it will prompt you which card, you will say the second. Now if you want to flash the card you use nvflash again. It may be possible you need to remove the write protection using nvflash. The commands for it are there. The BIOS extracted is a nice 88kb file which is a clean BIOS file. So yes it is possible !

svl7 please PM me. I found your solution to overclock the SLI card

Can you please also try to disassemble the HDD module ? It would be great!

You can find it in this thread : http://forum.techinferno.com/lenovo-ibm/2874-lenovo-y400-y500-unlocked-bios-wlan-whitelist-mod-14.html Enjoy!