| Signal | Typical header pin | Function | |---|---:|---| | PWR_SW | PWR_SW / adjacent GND | Momentary power-on switch | | PWR_LED | PWR_LED+ / PWR_LED- | Power status LED (single or bi-color) | | HDD_LED | HDD_LED+ / HDD_LED- | Hard drive activity LED | | RESET | RESET / GND | Reset switch (if present) | | SPEAKER | SPEAKER+ / SPEAKER- | Internal piezo speaker / beeper |
(Confirm exact pin numbers on your board.)
Position the board so the rear I/O ports (USB, audio, ethernet) are facing away from you (towards the back of the case). The front panel header is at the bottom right.
(Empty - No Pin)
|
[PLED+ ][PLED- ][PWR_SW][PWR_SW][RESET]
[HDD+ ][HDD- ][GND ][GND ][+5V_DUAL]
^ ^
| |
Row 1 (5 pins) Row 2 (4 pins - note the missing pin at top right)
Summary: this document describes the front-panel connector, signals, pinout, LEDs, switches, common troubleshooting steps, and wiring recommendations for motherboards labeled iPSiB‑VR Rev 1.01 (Acer laptops/mini-PCs that use this board). Use this as a practical reference for repair, modding, or replacement front-panel assemblies. Assume your board is labeled Rev 1.01; variations may exist between batches — verify against the board silkscreen and multimeter before powering.
Warning: working on motherboards can damage components or cause injury. Disconnect power, remove battery (if applicable), and ground yourself to avoid static discharge. acer ipisb-vr rev 1.01 front panel
Because this board is dual-purpose (OEM and retail standards), ensure no extra brass standoffs are touching the back of the PCB under the front panel area.
Q: Does the Acer IPISB-VR Rev 1.01 have a front panel audio header?
A: Yes, but it is a separate header labeled F_AUDIO (usually 7 pins) located near the PCIe x1 slot. It uses standard Intel HD Audio pinout (not AC’97).
Q: Why does my power LED stay on even when the PC is off?
A: This is normal behavior for some Acer BIOS versions. The PWR_LED pin outputs a trickle voltage (S5 state). It will turn off completely only when the PSU is switched off.
Q: Can I use a front panel USB 3.0 header on this board? A: No. The IPISB-VR Rev 1.01 does not have an internal USB 3.0 header. It only has USB 2.0 headers (usually two 9-pin headers near the ATX power connector). You will need a PCIe USB 3.0 adapter card. | Signal | Typical header pin | Function
Q: I lost the original Acer front panel daughterboard. Can I still use the power button? A: Absolutely. The daughterboard is just an extension. Solder your power switch wires directly to Pins 3 and 4 on the main header. Use a multimeter in continuity mode to verify you have the correct pins.
Most retail PC cases (Corsair, NZXT, Cooler Master, Fractal Design) have front panel connectors that are broken into single 2-pin blocks. Here is how to connect them to this specific board.
Navigating the maze of proprietary motherboards
If you are reading this, you likely hold a green or blue circuit board in your hand. It’s the Acer IPISB-VR Rev 1.01, a motherboard that shipped inside famous pre-built desktops like the Acer Aspire M3970, M1470, and the Predator G3620. While this board is based on the Intel H61 Express chipset (supporting Sandy Bridge and Ivy Bridge CPUs), it has a notorious reputation for one specific headache: the front panel header. Q: Does the Acer IPISB-VR Rev 1
Unlike standard retail motherboards that follow Intel’s Front Panel I/O Connectivity Design Guide, Acer uses a proprietary pinout. Plugging a standard PC case’s power switch into this board without a diagram can lead to a system that refuses to boot—or worse, shorted LEDs.
This article provides an exhaustive breakdown of the Acer IPISB-VR Rev 1.01 front panel connector, including pinout diagrams, voltage readings, adapter wiring, and common troubleshooting steps.
Before you wire anything, locate the connector. On the IPISB-VR Rev 1.01:
Important: Do not confuse it with the F_AUDIO (front audio) header, which is located near the PCIe slots.