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Hello everybody, Today i will show You how to mount 3rd antenna to Lenovo y580. The new antenna came from LENOVO G550. I took shorter one (black one). Oryginally it was placed on display panel next to the camera. Look like that: I was trying three different places. 1st place was a TV card slot. The long cable was convoluted and placed over the antenna. 2nd place was black plastic below heatpipe, and over RAM. But i can not close the back cover so i resigned of that place. 3rd place was a left speaker. To take off the keyboard you have to unscrew 3 screws. Then you have to undermine the three hooks. I used a driver's license because it is lean and hard, respectively. Take a look at "Lenovo Y480/580 Hardware Maintenance Manual" on this post (end of 1st post): LINK page 46. You need to remove the three screws instead of two do not read page 45. Then you have to remove keyboard bezel. Use the same manual as above but page 48 to 50. Then, stick the double-sided tape antenna. Take a look at images. I have done some speed tests. My router: ASUS RT-N66u My PC 1: SSD 128GB, Gigabit LAN My PC 2: Lenovo Y580 SSD 128GB, WiFi 5GHz, WiFi card 3rd location Intel 6200: Max Download from PC1 to PC2 = 100Mbit/s Intel 6200: Max Download from PC2 to PC1 = 100Mbit/s Intel 6300: Max Download from PC1 to PC2 = 135Mbit/s Intel 6300: Max Download from PC2 to PC1 = 135Mbit/s I have done some performence tests. 1st place - very large disturbance, unstable connection, avg speed 80Mbit/s 2nd place - very large disturbance, unstable connection, avg speed 90Mbit/s 3rd place - no disturbance, stable connection, avg speed 135Mbit/s

This card looks beast! Just wondering if would be compatible with the M18? At this time the 1103 it is only availible on some new systems and uses a 3 antenna array. When available, this could be a nice replacement to the Intel 6300. Review is of a 1102, 2 antenna card. http://www.bigfootnetworks.com/killer-wireless-n-1103/ http://www.tentonhammer.com/reviews/bigfoot/wireless-n-1102

hi guys i bought one of these off ebay not really reading description (IBM card) Intel Centrino Ultimate-N 6300 wireless card A/B/G/N (eBay item 390307758326 end time 20-Jul-11 17:29:55 AEST) : Computers installed in my m17xr2 and getting CODE 10 (cannot start device) with latest intel drivers & IBM Drivers. any ideas