VBESTLIFE PC Motherboard Diagnostic Card, 4-Digit Card PC Analyzer Computer Diagnostic Motherboard POST Tester for PCI & ISA

• 【For computer motherboard】 It can find computer failures accurately, stable and fast. The code value of "Initial Code" is specific "0000" or "FFFF", which is at a glance.
• 【LCD character display】 Use the four-digit error code to display. With ming-sound to signal the fault function.
• 【For PCI and ISA】 Anti-insert or incorrect insert will not burn any parts. Suitable for both ISA bus and PCI bus.
• 【Diagnostic Card】 Does not insert the CPU and other blank cards, just turn them on to diagnose an important signal situation in the card.
• 【Compatible】 Can be fully compatible with all kinds of high, medium and low quality motherboards (For Intel, For AMD and other manufacturers low, medium and high level CPU platform motherboards and servers).

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