---
product_id: 370131462
title: "PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card"
brand: "fosa"
price: "12 Lei"
currency: RON
in_stock: false
reviews_count: 2
url: https://www.desertcart.ro/products/370131462-pc-motherboard-diagnostic-card-4-digit-card-pc-analyzer-computer
store_origin: RO
region: Romania
---

# Power Diagnostics Wide Compatibility Error Detection PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card

**Brand:** fosa
**Price:** 12 Lei
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Diagnose Like a Pro!

## Quick Answers

- **What is this?** PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card by fosa
- **How much does it cost?** 12 Lei with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/370131462-pc-motherboard-diagnostic-card-4-digit-card-pc-analyzer-computer)

## Best For

- fosa enthusiasts

## Why This Product

- Trusted fosa brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bell Error Report:** Audible alerts for immediate attention.
- • **Four-Digit Display:** Clear error codes at a glance.
- • **Power-On Diagnostics:** No CPU? No problem! Diagnose with ease.
- • **Universal Compatibility:** Works with all major motherboard brands.
- • **Quick Error Identification:** Find and fix issues in a flash!

## Overview

The PC Motherboard Diagnostic Card is an essential tool for tech-savvy professionals, enabling quick and accurate identification of motherboard errors. With its four-digit display and audible alerts, it simplifies troubleshooting across a wide range of motherboard types, ensuring you can keep your systems running smoothly.

## Description

Indicator function of the diagnostic card: CLK: No matter ISA or PCI, as long as there is a empty board (no CPU etc.), the light should be on when power on, otherwise, the CLK signal is failure BIOS: Mothermoard running, the light will fash while there is a reading operation on the BIOS. IRDY: The light will flash when having a IRDR signal, otherwise, it will not lignt on.  OSC: Empty board powered on, the light will be constant on, when there is the ISA slot have main vibration signal, otherwise, failure of oscillation. FRAME: The light will flash when there is circular frame signal. Light will constant on in peacetime RST: Reset RESET: power on or press the RESET switch, the light will be on for half second and then be off. Because, if light is not off, the reset pin on motherboard connected to the acceleration switch or the reset circuit broke down. 12V: Empty board powered on, the light should be constant on, otherwise the voltage or motherboard has a short circuit. -12V: Do ditto 5V: Do ditto -5V: Do ditto (only for ISA slot). 3V3: This 3.3V voltage is unique for PCI slot. Empty board powered on, the light should be constant on. Some of PCI slot motherboard has not this voltage, the light should be off.  Specifications: Usage: Maintenance tools for computer motherboard Specifications: All produced by patch components, do not hurt your hands, LCD characters display Color: Shown as the picture Package weight: 48g  Package Include:  1 x Diagnostic Card 1 x English User Manual

## Features

- 【Find Errors Quickly】 The motherboard diagnostic card can find computer errors accurately, stably and quickly. The code value of the "start code" is a specific "0000" or "FFFF" which is clear at a glance.
- 【Diagnostics by Turning on the Power Supply】 Simply turn on the power supply without inserting the CPU and other blank cards to diagnose important signal states on the card. Suitable for ISA bus and PCI bus.
- 【Display Error Code】 The motherboard diagnostic card uses a four-digit error code display and has a bell error report function which provides a good reminder function. You can quickly understand what is wrong with your computer motherboard.
- 【Wide Compatibility】 It can be fully compatible with a wide variety of high, medium and low end motherboards (low, medium, advanced and server CPU platform motherboards from Intel, AMD and other manufacturers).
- 【High Quality Materials】 The diagnosis card is made of full chip components, does not hurt your hands, displays LCD characters, is very practical, durable and can meet your needs well.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Graphics Card Interface | PCI |
| USB 2.0 | 4 |
| Memory Storage Capacity | 8 GB |
| Compatible Devices | Personal Computer |

## Product Details

- **Brand:** fosa
- **Compatible devices:** Personal Computer
- **Memory storage capacity:** 8 GB
- **Graphics card interface:** PCI
- **Number of USB 2 ports:** 4

## Images

![PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card - Image 1](https://m.media-amazon.com/images/I/61yFgLw3PzL.jpg)
![PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card - Image 2](https://m.media-amazon.com/images/I/61r67OgiskL.jpg)
![PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card - Image 3](https://m.media-amazon.com/images/I/61Qg4Ep7yML.jpg)
![PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card - Image 4](https://m.media-amazon.com/images/I/61unl5ruFxS.jpg)
![PC Motherboard Diagnostic Card 4-Digit Card PC Analyzer Computer Diagnostic Motherboard Post r for PCI & ISA Analyzer r Diagnostic Card - Image 5](https://m.media-amazon.com/images/I/61yLxKz9ACL.jpg)

## Customer Reviews

### ⭐ 







  
  
    These things don't work!
  

*by R***0 on Reviewed in the United States on 20 April 2021*

I got 2 of these. BOTH were completely DOA. It does nothing when installed, even in cases where an error code should appear. The thing also gets super hot so something is wrong with these.

### ⭐ 







  
  
    dont waste time
  

*by B***H on Reviewed in the United States on 3 February 2021*

dont work

## Frequently Bought Together

- PC Computer Motherboard Analyzer Diagnostic Card, 4 Digit PCI and ISA PC Computer Motherboard Diagnostic Analyzer Post Tester Card, 4 Digit PCI & ISA PC Tester
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**Shop now:** [https://www.desertcart.ro/products/370131462-pc-motherboard-diagnostic-card-4-digit-card-pc-analyzer-computer](https://www.desertcart.ro/products/370131462-pc-motherboard-diagnostic-card-4-digit-card-pc-analyzer-computer)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-13*