595765-001 HP System Board (Motherboard) for Elitebook 8540W 8540P Laptop (Refurbished)
NOKOTION KAQ00 LA 4951P 595764 001 Laptop motherboard for HP EliteBook 8540P 8540W DDR3 with graphics slot not support i7|laptop motherboard| motherboard for hpmotherboards for laptops - AliExpress
Solved: Missing RAM slot in EliteBook 8540p - HP Support Community - 1800127
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595765 001 KAQ00 LA 4951P Laptop Motherboard For HP EliteBook 8540p 8540W From Systemboard, $110.56 | DHgate.Com