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Question posted by ritacole55 on January 14th, 2022

Where Is The Power Fuse Located?

Where on the motherboard is the 12V power fuse

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Answer #1: Posted by SonuKumar on January 14th, 2022 8:22 AM

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SonuKumar

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it should be smps - if there option given or else you have replace power supply/smps

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Related Acer Aspire X3990 Manual Pages

Acer Aspire X3990 Desktop Service Guide - Page 1

Acer Aspire X3990 Service Guide PRINTED IN TAIWAN

Acer Aspire X3990 Desktop Service Guide - Page 7

... Hard Disk Drive 37 Removing the Optical Drive 38 Removing the Memory Modules 39 Removing the Power Supply 40 Removing the Mainboard 42 Removing the Front I/O&USB and Card Reader Boards 45 Assembly...Panel 53 Romoving the Front Bezel 54 Removing the Cage of ODD and HDD 55 Install the Power Supply 56 Install the I/O Shielding 57 Install the Main Board 58 Connect the Cable 59 ...

Acer Aspire X3990 Desktop Service Guide - Page 8

... 69 System Check Procedures 70 Power System Check 70 System External Inspection 70 System Internal Inspection 70 Beep Codes 71 Checkpoints 72 BIOS Recovery 75 Jumper and Connector Information 76 M/B Placement 76 Jumper Setting 78 Setting Jumper 78 FRU (Field Replaceable Unit) List 85 Aspire X3990 Exploded Diagram 86 Aspire X3990 FRU List 88 viii

Acer Aspire X3990 Desktop Service Guide - Page 10

... 82579V GigaLAN PHY USB ports • Supports at least 10 USB ports on both front and rear side. • At least 6 USB ports located on rear panel and others located on board buzzer 2 Chapter 1 Audio • Realtek ALC662VC-0. • Support stereo output. (5.1 channel with bezel. • Support models are listed on AVLC...

Acer Aspire X3990 Desktop Service Guide - Page 11

...; 1 * Qual USB2.0 connector (4 ports) • 1 * 3 ports Audio jack On-board connectors • 1 * ILM for LGA 1155 CPU. • 1 * 24-pin ATX PWR connector. • 1 * H2X4 Power Supply Connector. • 2* DDR3 DIMM Socket. • 2 * SATA 2.0. • 4 * USB2.0 H5X2 Header (support 8 ports). • 1 * Front Audio Pannel H5X2 header. • 1 * Front Panel IO H7X2...

Acer Aspire X3990 Desktop Service Guide - Page 13

.../Speaker-out/line-out jack 5 CF I/II (CompactFlash Type I/II) slot 6 XD(XD-Picture)/SD(Secure Digital)/PRO slot 7 Optical drive eject button 8 Optical drive 9 Power button Chapter 1 5

Acer Aspire X3990 Desktop Service Guide - Page 14

Rear Panel No. Component 1 Line-in jack 2 RJ45 LAN connector 3 D-sub port 4 PS2 mouse port 5 Power connector 6 PS2 keyboard port 7 HDMI port 8 USB 2.0 ports 9 Line-out jack 10 Microphone jack 11 Expansion slot(graphics card and TV-TUner card) 6 Chapter 1

Acer Aspire X3990 Desktop Service Guide - Page 16

... keyboard for legacy mode • Supports at least 10 USB ports on both front and rear side. • At least 6 USB ports located on rear panel and others located on front bezel and top bezel. • All USB ports must be boot-capable includes USB-ODD, USB-HDD, USB-FDD, and etc...

Acer Aspire X3990 Desktop Service Guide - Page 17

...) control for external amplifier • "Support 1.5V~3.3V scalable I/O for HD Audio link • "Supports anti-pop mode when analog power AVDD is on and digital power is off • "48-pin LQFP 'Green' package • "Pin-to-pin compatible with ALC88x series, ALC660 series, and ALC26x series audio codecs 192 KHz...

Acer Aspire X3990 Desktop Service Guide - Page 18

S5 V N/A Disabled Disabled Disabled 10 Chapter 1 Power Management Devices S1 S3 S4 Power Button V V V USB Keyboard/Mouse V V N/A PME Disabled Disabled Disabled RCT Disabled Disabled Disabled WOR Disabled Disabled Disabled • Devices wake up from S3 should be less ...

Acer Aspire X3990 Desktop Service Guide - Page 19

...keyboard &mouse for Windows. • Resume recovery time 3-5sec Global Standby Mode • Global power management timer(2-120minutes,time step=10minute). • Hard disk drive goes into Standby mode(for ATA...for APM mode. • Resume recovery time :7-10sec Suspend Mode • Independent power management timer(2-120minutes,time step=10minute)or pushing extern switch button. • CPU goes...

Acer Aspire X3990 Desktop Service Guide - Page 20

... repeatedly receive Run Setup messages, the battery may not be bad. You will be retained when power is no need to the CMOS setup NOTE: If you have saved all open files. This ...; When redefining the communication ports to prevent any conflicts • When modifying the power management configuration • When changing the password or making other changes to as "BIOS", "Setup", or "...

Acer Aspire X3990 Desktop Service Guide - Page 24

Option Enabled Disabled Enabled Disabled On Off Enabled Disabled Chapter 2 16 If you to enable or disable the Clock to all DIMM/PCI/PCIE. Selects power on state for Num Lock. This item allows you enable spread spectrum, it can significantly reduce the EMI (ElectroMagnetic Interference) generated by the system. USB ...

Acer Aspire X3990 Desktop Service Guide - Page 28

... resume if there is an incoming call on the PCIE LAN card.You must use an ATX power supply in order to use this feature.Use this item to dowake-up function. Enables or disables... to wake up the system by USB KB/ Mouse Restore On AC Power Loss Description Select an ACPI state. Enable/disable onboard lan wake up action if inserting the PCIE card. ...

Acer Aspire X3990 Desktop Service Guide - Page 33

Turn off the system and all peripheral cables from the system. 5. Place the system unit on a flat, stable surface. 25 Chapter 3 Unplug all the peripherals connected to it. 2. Unplug the power cord from the power outlets. 3. Unplug the power cord from the system. 4. Pre-disassembly Procedure Before proceeding with the disassembly procedure, perform the steps listed below: 1.

Acer Aspire X3990 Desktop Service Guide - Page 34

Removing the Side Panel 1. Slide the side panel toward the back of the side panel. 2. Chapter 3 26 Remove the two screws located on the rear edge of the chassis until the tabs on the cover disengage with the slots on the chassis. 3. Lift the side panel away from the server and put it aside for reinstallation later.

Acer Aspire X3990 Desktop Service Guide - Page 44

Chapter 3 36 Disconnect the power switch cable from the chassis, then remove the bezel. 7. Pull the power switch cable from the motherboard. 8.

Acer Aspire X3990 Desktop Service Guide - Page 93

Chapter 6 FRU (Field Replaceable Unit) List This chapter offers the FRU (Field Replaceable Unit) list in the FRU list of the Aspire X3990 desktop computer. For Acer authorized service providers, your Acer office may have a different part number code from those given in global configuration of this chapter whenever ...

Acer Aspire X3990 Desktop Service Guide - Page 94

Aspire X3990 Exploded Diagram NOTE: This section will be updated when more information becomes available. 86 Chapter 6

Acer Aspire X3990 Desktop Service Guide - Page 96

Aspire X3990 FRU List Category MB Kit Description Part Number Exploded Diagram Item MB Kit AX1930 Intel H61 Intel 82579V GbE Proprietary W/O 1394 LF DDRIII 2 DIMM W/ EUP MB.SGA07.002 3 Chassis Bezel CPU 88 Hon Hai Chassis xSFF HX097G w/ front HS.13100.214 N/A USB4+1port for Aspire AX360 Bezel supports I/O shielding Hon Hai Chassis...