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---updated----- see below--- Hi all i want to share my experience for you that want to implement egpu on HP430 laptop. since HP 430 has many variant, so i think this method can be implemented to other such as HP 630/631 or 431. or wether the i5 atau the i3 version. you can try here are my system Laptop Name :HP 430 A Processor: i5-2430m (dual core) --- update(upgrade to i7-2670qm) igpu: intel HD 3000 no dgpu ( i don't know for other variant that has dgpu, i think it might work, just try disable the dgpu from setup 1.3) RAM : 8gb Harddisk: upgraded to SSD sandiks 120gb EXP GDC beast v8.0 via mpcie (2gen) egpu: gigabyte NVIDIA GTX 950OC 2gb (i was afraid to test better card since no guarantee it might be worked) psu: corsair VS450 (450 watt, i don't like it because the cables are undetachable) The step:(updated see below) 1. pin22 isolation to pass boot screen related to black bootup. i set to 14s delay in switch 2. setup 1.3 (for 1.2 optimus(?), bought it because the wifi mpcie port is whitelisted but then used bios mod instead) 3. bios mod (yeah as other hp laptop, HP sucks! need this mod to overcome mpcie whitelist) got from here. Thanks to kopter3161 to make bios downgrade is much simpler for noob. from setup 1.3 i can see my TOLUD size is 2.7. but because of my curiosity, i tried to overide my DSDT to see large memory input in device manager. Therefore, i can do 56gb compaction setup 1.3: PCI compaction at 56gb. (as in setup 1.3 help, it's number #1) pcie port: gen 2 speed. i dont know if i can increase the performance more, in 3dmark bench mark i got around 11000 in skydiver and around 4400 in firestrike. Thanks all --------------------------- update recently upgrade my processor to i7-2760qm and the laptop is frequently hang after start up. I managed to make it stable. even now i dont use setup 1.3x anymore. here the step 1. isolate pin22 2. set exp gdc to left. 3. downgrade the bios as i mentioned above. and in BIOS setting, set the pcie port(my wifi port is port3) to enable hotplug. 4. dsdt overide to show large memory. 5. disable fastboot. i compare the gen2 and gen1 but the result is same so I don't use setup 1.3x anymore. ---update----- - i Found the EXP GDC is not stable if we using another usb especially USB wifi dongle. I read a thread here that suggest to use powered USB Hub. now i never found hang/BSOD anymore guys. - i see significant increase of performance when i use external monitor. in skydiver 3dmark it increase to 14.500 from 12.400