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4-Digit POST Diagnostic Test Card, 25Pin Parallel Port + USB Dual Interface Motherboard Analyzer for Laptop & Desktop PC Fault Detection
- Dual connectivity design: standard 25pin parallel port and USB plug, compatible with desktops and laptops lacking traditional LPT ports
- Clear 4-digit LED digital display, directly outputs POST error codes for rapid motherboard startup fault positioning
- Supports real-time monitoring of motherboard power supply, clock, reset signal and bus status, pinpoint boot failure root causes
- No extra software installation required; plug-and-read error codes, suitable for maintenance technicians and DIY hardware troubleshooting
- Compact small form factor, easy to carry and insert, ideal for PC repair shops, home hardware inspection and dead boot diagnosis
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This POST diagnostic tester is an essential hardware maintenance tool for unbootable PCs that show no screen output. By reading BIOS self-test codes on power-on, it quickly locates faults on CPU, memory, graphics card, power supply or motherboard chipset. With both parallel and USB access modes, it works seamlessly with old desktops and modern laptops, greatly improving repair efficiency for blank screen, infinite restart and no-display failure scenarios.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by TechCore Supply Return Policy
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