--- product_id: 266185516 title: "PC Diagnostic 4-Digit Card,Module Board Test & Measuring Module PC Computer Mother Board Debug Post Card Analyzer PCI Motherboard Tester Diagnostics Display for Desktop PC" brand: "gintooyun" price: "€ 21.48" currency: EUR in_stock: true reviews_count: 8 category: "Gintooyun" url: https://www.desertcart.be/products/266185516-pc-diagnostic-4-digit-card-module-board-test-and-measuring store_origin: BE region: Belgium --- # Real-time & previous error code recall PCI & ISA slot compatibility 4-digit dual POST code display PC Diagnostic 4-Digit Card,Module Board Test & Measuring Module PC Computer Mother Board Debug Post Card Analyzer PCI Motherboard Tester Diagnostics Display for Desktop PC **Brand:** gintooyun **Price:** € 21.48 **Availability:** βœ… In Stock ## Summary > πŸ” Decode your motherboard’s secrets like a pro β€” never miss a glitch again! ## Quick Answers - **What is this?** PC Diagnostic 4-Digit Card,Module Board Test & Measuring Module PC Computer Mother Board Debug Post Card Analyzer PCI Motherboard Tester Diagnostics Display for Desktop PC by gintooyun - **How much does it cost?** € 21.48 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/266185516-pc-diagnostic-4-digit-card-module-board-test-and-measuring) ## Best For - gintooyun enthusiasts ## Why This Product - Trusted gintooyun brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Safe & Durable Design:** Reverse insertion protection and patch components ensure zero damage during use. - β€’ **Dual 4-Digit Hex Display:** Simultaneously shows current and previous POST error codes for precise troubleshooting. - β€’ **Remote & Dual-Side Readout:** View POST codes from both PCB component and solder sides, enhancing accessibility. - β€’ **Plug & Diagnose Without CPU:** Identify motherboard failures even without CPU or other components installed. - β€’ **Universal PCI & ISA Interface:** Seamlessly plugs into any desktop motherboard slot for instant diagnostics. ## Overview The PC Diagnostic 4-Digit Card is a versatile motherboard analyzer compatible with PCI and ISA slots, featuring a dual 4-digit hexadecimal display that reveals current and previous POST error codes. Designed for safe insertion and broad compatibility, it enables detailed diagnostics even without a CPU installed, making it an essential tool for IT professionals and vintage PC enthusiasts aiming for rapid, accurate motherboard troubleshooting. ## Description The motherboard diagnostic card is also called a POST card (Power On Self Test) or a PC analyzer. It is a code that displays the motherboard BIOS self-test procedure. Specifications: System: for Windows 98 SE/ ME/ NT/ 2000/ XP / VISTA Size: Approx. 89mm x 82mm(L*W) Support for desktop computers With motherboard operating indicator; The use of patch components does not hurt hands; This card can be inserted into ISA or PCI; Plug in the wrong slot or reverse insertion will not burn any parts; Able to display the crash of repeated automatic reset under a black screen; You can diagnose the failures in the board without plugging in the CPU and other empty boards. Suitable for all computers with PCI or ISA interface. Introduce of run LEDS Only by some units and a few mainboard slot message , it could runs normally , and it has a low error percentum , If the card is plugged into the bad slot , the code stop changing , or the other LEDS is not light , but the run LED is quite possible to run normally . You can solve the following problems by the result "of if the run LED has lighted , the mainboard has ever ran": 1 . The code of the card is bad 2 . The card is not fit for the mainboard which you using 3 . PCI slot or ISA slot is bad 4 . The card is plugged incorrectly or pins of card are dirty , or pins in slotrusted 5 . The mainboard stops working 6 . The mainboard is working on programs which is out of relation tocode Size:89mm x 82mm Weight:32g Package contains: 1. Diagnostic test card; 2. Instruction manual 3.DuPont Wire Review: Works, A Great Value Must Have For Vintage Motherboard Repairs. - Item Arrived Fast and As Described, Works Excellent! Hope it Lasts. Must Have For Vintage Motherboard Repairs. I Can not wait to use it more. Review: Works but cant use - This thing is reading the wrong codes on my board and the instructions are no help so i cant use this. ## Features - PCI and ISA 4 digit PCI analyzer:standard PCI and ISA interface,easy access to desktop PC.Standard PCI and ISA interfaces for easy access to desktop PCS.4 digit display,the first 2 digits indicate the current error code,and the last 2 digits indicate the previous error code. - PC Diagnostic 4-Digit Card fully compatible with any kind motherboards which has the PCI and ISA bus slot - The POST code display is made up of a dual, dot matrix hexadecimal read-out that display's Power On Self Test (POST) status codes. - Self checking remote display function. Dual POST code display - User can readout the POST at PCB component and solder side. It is easy to view the POST code when user plugs the POST card in computer system. Recall previous post codes at the touch of a button ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08QRCDR9D | | Best Sellers Rank | #289 in Computer Motherboards | | Brand | GINTOOYUN | | Compatible Devices | Personal Computer | | Customer Reviews | 3.4 out of 5 stars 59 Reviews | | Hardware Interface | PCI | | Manufacturer | FENGQLONG | | Model Number | zbc-105 | | Operating System | Windows 98, Windows Vista, Windows XP | | Style | Classic | | Style Name | Classic | | UPC | 723508510399 723508506866 | ## Product Details - **Brand:** GINTOOYUN - **Compatible Devices:** Personal Computer - **Hardware Interface:** PCI - **Style:** Classic - **UPC:** 723508510399 723508506866 ## Images ![PC Diagnostic 4-Digit Card,Module Board Test & Measuring Module PC Computer Mother Board Debug Post Card Analyzer PCI Motherboard Tester Diagnostics Display for Desktop PC - Image 1](https://m.media-amazon.com/images/I/813Qvo8abeL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works, A Great Value Must Have For Vintage Motherboard Repairs. *by S***E on July 30, 2025* Item Arrived Fast and As Described, Works Excellent! Hope it Lasts. Must Have For Vintage Motherboard Repairs. I Can not wait to use it more. ### ⭐ Works but cant use *by M***N on March 30, 2024* This thing is reading the wrong codes on my board and the instructions are no help so i cant use this. ### ⭐⭐⭐⭐ Works, Not a lot of instructions *by C***. on April 18, 2023* The manual is a bit sketchy but after some on line research I got it working. Does what its suppose to do. ## Frequently Bought Together - PC Diagnostic 4-Digit Card,Module Board Test & Measuring Module PC Computer Mother Board Debug Post Card Analyzer PCI Motherboard Tester Diagnostics Display for Desktop PC - Computer PC Power Supply Tester, ATX/ITX/IDE/HDD/SATA/BYI Connectors Power Supply Tester, 1.8'' LCD Screen (Aluminum Alloy Enclosure) - Comimark 1Pcs Mini 3 in1 PC Laptop Analyzer PCI PCI-E LPC Tester Diagnostic Post Test Card --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/266185516-pc-diagnostic-4-digit-card-module-board-test-and-measuring](https://www.desertcart.be/products/266185516-pc-diagnostic-4-digit-card-module-board-test-and-measuring) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-04-22*