Certified Pre-Owned & Open-Box Showcase — 24-Point Dalmia Lab QC
We never publish scraped or uninspected second-hand rows. Every pre-owned laptop at Dalmia Computers Purulia must pass all 24 physical lab checks (Battery >= 80%, SSD SMART >= 95%, hinge torque, microscope inspection & clean provenance).
24-Point Mandatory Lab QCLive Uncertified Stock: 0Written Showroom QC Warranty
Live Showroom Certified Inventory Status
Current Live Certified Units Online: 0 — Certified business ThinkPad / Latitude / EliteBook units move quickly at our Ranchi Road counter. Register an honest pre-booking inquiry below so our lab notifies you when a 24/24 QC-passed unit matching your budget is ready.
Mandatory 24-Point Dalmia Lab QC Checklist
#1 · Battery & Power
Battery wear level & design-capacity ratio >= 80%
#2 · Battery & Power
Original/certified AC adapter ripple & DC jack strain test
#3 · Battery & Power
Charging IC mosfet thermal stability under load
#4 · Battery & Power
ACPI sleep/hibernate/wake battery drain audit
#5 · Storage & Memory
SSD/NVMe SMART health >= 95% & zero bad/reallocated sectors
#6 · Storage & Memory
Full multi-pass RAM MemTest86 zero-ECC/bit-error verification
#7 · Storage & Memory
NVMe/SATA sustained sequential read/write speed benchmark
#8 · Storage & Memory
NIST-grade secure data wipe of prior user partitions
#9 · Display & Chassis
LCD/IPS dead-pixel, white-spot & backlight uniformity inspection
#10 · Display & Chassis
Left/right display hinge torque & brass insert integrity check
#11 · Display & Chassis
eDP display cable flex test across 50 open/close cycles
#12 · Display & Chassis
Palmrest, top cover & base rubber feet structural audit
#13 · I/O & Connectivity
Every USB-A, USB-C, HDMI & LAN port data/power transfer test
#14 · I/O & Connectivity
Dual-band Wi-Fi & Bluetooth sustained packet-loss check
#15 · I/O & Connectivity
Full per-key keyboard matrix + precision trackpad click test
#16 · I/O & Connectivity
Webcam, dual-array microphone & stereo speaker distortion test
#17 · Motherboard & Thermal
Stereo microscope inspection (zero liquid corrosion / flux residue)
#18 · Motherboard & Thermal
Heatsink fin ultrasonic cleaning & fresh high-conductivity thermal paste
#19 · Motherboard & Thermal
30-minute CPU/GPU sustained stress test (< 85°C thermal ceiling)
#20 · Motherboard & Thermal
Cooling fan bearing acoustic & RPM curve verification
#21 · BIOS, OS & Provenance
BIOS/UEFI unlocked (zero supervisor/Computrace/MDM lock)
#22 · BIOS, OS & Provenance
Genuine OEM digital Windows license activation verified
#23 · BIOS, OS & Provenance
Verified seller KYC & clean serial/IMEI ownership provenance
#24 · BIOS, OS & Provenance
Written Dalmia Computers Ranchi Road Showroom QC Warranty Certificate