Lenovo Legion S7 15ACH6

[peste]

Hi! If possible, I need to disable the onboard RAM as it has issues with the solder joints under one or more of the chips.

My customer is not going to want to pay for reballing the onboard RAM or replacing it, so if there is a way to just disable the onboard memory I'm sure they will be ok with it and they can just buy higher capacity slotted RAM.

Thanks.

post the S/N, the motherboard model, the full name and model of the laptop,etc.

[ResoluteHawk]

Lenovo Legion S7 15ACH6
Serial Number: PF31VQ4K
Motherboard Model: BM5070_V1.4

Edit: Found the On Board RAM Disable script; Fingers crossed that this works.
Edit2: Did not work. All voltage rails are present but CPU and GPU do not get hot. No shorts are present and resistances on all rails are good. Using known good slotted RAM and the fans spin with keyboard lights, but no POST.

[hoaca388]

Lenovo Legion S7 15ACH6
Serial Number: PF31VQ4K
Motherboard Model: BM5070_V1.4

Edit: Found the On Board RAM Disable script; Fingers crossed that this works.
Edit2: Did not work. All voltage rails are present but CPU and GPU do not get hot. No shorts are present and resistances on all rails are good. Using known good slotted RAM and the fans spin with keyboard lights, but no POST.

Legion S7-15ACH6 Laptop (Lenovo) - Type 82K8

[ResoluteHawk]

Legion S7-15ACH6 Laptop (Lenovo) - Type 82K8

Thank you! I'll give this a shot on Monday.

[ResoluteHawk]

I put the BIOS that you posted through the disable RAM script and flashed it; I'm still running into the same problem.

If this script is actually doing what it's supposed to be doing, then I'm likely running into a problem with a dead chipset/APU, but this diagnosis doesn't make sense since all voltage rails are present with good resistances.

CPU and GPU are getting slightly warm but nowhere as hot as they should be for system power on, and the system is running for 5+ minutes. CPU and GPU VCORE voltages are present.

I have no other ideas at this point.

[tuthanh]

HELP ME BIOS EC BM5070 V1.4 (ITE 5576-128)

[SMDFlea]

HELP ME BIOS EC BM5070 V1.4 (ITE 5576-128)

https://www.badcaps.net/forum/troubl...before-posting post your laptop serial number

[tuthanh]

legion s7 15ACH6
S\N:PF3K62FJ
VER:BM5070_V1.4
Thanks

[SMDFlea]

legion s7 15ACH6
S\N:PF3K62FJ
VER:BM5070_V1.4
Thanks

EC