Illustrated Parts & Service Map HP Pro 3400/3500 Series Microtower Business PC

HP Pro 3400/3500 Series, MT 670581-003 page 4
Clearing CMOS
1. Turn off the computer and disconnect the power cord from the power outlet.
2. Remove the access panel.
3. On the system board, locate the CLR_CMOS or CMOS header. Header label varies based on
model.
4. Remove the jumper from pins 2 and 3.
5. Place the jumper on pins 1 or 2.
6. Replace the jumper on pins 2 and 3.
7. Replace the chassis access panel and reconnect the power cord.
8. Turn on the computer and allow it to start.
Clearing Passwords
1. Turn off the computer and disconnect the power cord from the power outlet.
2. Remove the access panel.
3. On the system board, locate the CLR_PASS or CLR_PWD header.
4. Remove the jumper from pins 2 and 3.
5. Place the jumper on pins 1 or 2.
6. Replace the jumper on pins 2 and 3.
7. Replace the chassis access panel and reconnect the power cord.
8. Turn on the computer and allow it to start.
System Board - HP Pro 3400/3405 (3400 shown)
System Board - HP Pro 3410
System Board - HP Pro 3500
System Board Connectors and Jumpers (component location may vary)
CPU _FAN Heat sink fan connector F_USB3 3rd USB connector
XMM1 Memory socket - Channel A INT_SPRK Speaker connector
XMM3 Memory socket - Channel B F_AUDIO Front audio connector
BAT RTC battery socket PCIEX1_3 PCIe X1 slot
ATX POWER Main power connector PCIEX1_2 PCIe X1 slot
HOOD_SENSE Hood sensor connector PCIEX1_1 PCIe X1 slot
MINI_PCIE Mini PCIe connector PCIEX16 PCI slot
CLR_PASS Password header AUDIO Audio connectors
CLR_CMOS CMOS header S/PDIF_OUT1 SPDIF audio connector
SATA2 1st optical drive SYSFAN Fan connector
SATA0 1st hard drive VGA Monitor connector
SATA3 2nd optical drive ATX_CPU CPU power connector
SATA1 2nd hard drive DVI DVI connector
F_PANEL Front panel connector XU Processor socket
F_USB1 1st USB connector LAN+USB LAN + USB connector
F_USB2 2nd USB connector USB1 USB connectors
System Board Connectors and Jumpers (component location may vary)
PCI 1 PCI slot PROCESSOR Processor socket
PCI 2 PCI slot CPU _FAN1 Heat sink fan connector
PCIE_X1 PCIe x1 slot CHANNEL A Memory socket - Channel A
PCIEX16 PCIe x16 slot CHANNEL B Memory socket - Channel B
AUDIO Audio connectors ATXPOWER Main power connector
LAN+USB LAN + USB connector BAT RTC battery socket
HDMI HDMI connector SATA0 1st hard drive
VGA Monitor connector SATA2 1st optical drive
DVI DVI connector F_PANEL Front panel connector
KB/MS PS2 connectors SATA3 2nd optical drive
SYS_FAN1 Fan connector SATA1 2nd hard drive
ATX_CPU CPU power connector F_USB1 1st USB connector
CMOS CMOS jumper F_USB2 2nd USB connector
PARALLEL Parallel port connector F_USB3 3rd USB connector
SERIAL B 2nd Serial port connector F_AUDIO Front audio connector
System Board Connectors and Jumpers (component location may vary)
F_AUDIO Front audio connector XMM1 Memory socket - Channel A
PCIEX1_1 PCIe x1 slot XMM3 Memory socket - Channel B
PCIEX1_2 PCIe x1 slot BAT RTC battery socket
PCIEX1_3 PCIe x1 slot POWER Main power connector
PCIEX16 PCIe x16 slot HSENSE Hood sensor connector
CPU _FAN Heat sink fan connector CLR_PASS Password header
AUDIO Audio connectors CLR_CMOS CMOS header
PDIF_OUT1 SPDIF audio connector SATA2 1st optical drive
SYS_FAN Fan connector SATA0 1st hard drive
VGA Monitor connector SATA3 2nd optical drive
DVI DVI connector SATA1 2nd hard drive
LAN+USB LAN + USB connector F_PANEL Front panel connector
USB USB connectors USB Internal USB connector
ATX_CPU CPU power connector USB Internal USB connector
XU Processor socket MINI_PCIE Mini PCIe connector