HP Pro SFF 280 G9 Desktop PC Maintenance and Service Guide - Page 37

DDR4-3200 SDRAM UDIMM, Mandatory JEDEC SPD information

Get HP Pro SFF 280 G9 Desktop PC PDF manuals and user guides View all HP Pro SFF 280 G9 Desktop PC manuals
Add to My Manuals
Save this manual to your list of manuals

Page 37 highlights

● Industry-standard 288-pin ● 1.2 volt DDR4-SDRAM memory modules ● DDR4-3200 SDRAM UDIMM ● Mandatory JEDEC SPD information The computer supports the following setups: ● 512 Mbit, 1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies ● Single-sided and double-sided memory modules ● Memory modules constructed with ×8 and ×16 DDR devices; memory modules constructed with ×4 SDRAM are not supported NOTE: Memory modules support data transfer rates up to 3200 MT/s. Actual data rate is determined by system configuration. NOTE: When more than one memory slot is populated, symmetric configurations are required for two DIMMs per channel. A mix of different data transfer rates or memory rank mix within the same channel is not allowed. NOTE: The system does not operate properly if you install unsupported memory modules. There are two memory sockets on the system board, with two sockets per channel. The sockets are labeled DIMM1 and DIMM3. IMPORTANT: You must disconnect the power cord and wait approximately 30 seconds for the power to drain before adding or removing memory modules. Regardless of the power state, voltage is always supplied to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing memory modules while voltage is present can cause irreparable damage to the memory modules or system board. The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important to use memory modules with gold-plated metal contacts to prevent corrosion, oxidation, or both resulting from having incompatible metals in contact with each other. Static electricity can damage the electronic components of the computer or optional cards. Before beginning these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal object. For more information, see Electrostatic discharge information on page 8. When handling a memory module, be careful not to touch any of the contacts. Doing so can damage the module. Before replacing the memory modules, follow these steps: 1. Prepare the computer for disassembly (see Preparation for disassembly on page 18). 2. Remove the access panel (see Access panel on page 19). 3. Remove the optical drive (see Optical drive on page 23). 4. Remove the drive cage (see Hard drive on page 25). 5. Remove the front bezel (see Front bezel on page 24). Replace a memory module: 30 Chapter 4 Removal and replacement procedures

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
  • 93
  • 94
  • 95
  • 96
  • 97
  • 98
  • 99
  • 100
  • 101
  • 102
  • 103
  • 104
  • 105
  • 106
  • 107
  • 108
  • 109
  • 110
  • 111
  • 112
  • 113
  • 114
  • 115
  • 116
●
Industry-standard 288-pin
●
1.2 volt DDR4-SDRAM memory modules
●
DDR4-3200 SDRAM UDIMM
●
Mandatory JEDEC SPD information
The computer supports the following setups:
●
512 Mbit, 1 Gbit, 2 Gbit, and 4 Gbit non-ECC memory technologies
●
Single-sided and double-sided memory modules
●
Memory modules constructed with ×8 and ×16 DDR devices; memory modules constructed with ×4
SDRAM are not supported
NOTE:
Memory modules support data transfer rates up to 3200 MT/s. Actual data rate is determined by
system configuration.
NOTE:
When more than one memory slot is populated, symmetric configurations are required for two
DIMMs per channel. A mix of different data transfer rates or memory rank mix within the same channel is not
allowed.
NOTE:
The system does not operate properly if you install unsupported memory modules.
There are two memory sockets on the system board, with two sockets per channel. The sockets are labeled
DIMM1 and DIMM3.
IMPORTANT:
You must disconnect the power cord and wait approximately 30 seconds for the power to
drain before adding or removing memory modules. Regardless of the power state, voltage is always supplied
to the memory modules as long as the computer is plugged into an active AC outlet. Adding or removing
memory modules while voltage is present can cause irreparable damage to the memory modules or system
board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is important
to use memory modules with gold-plated metal contacts to prevent corrosion, oxidation, or both resulting
from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before beginning
these procedures, be sure that you are discharged of static electricity by briefly touching a grounded metal
object. For more information, see
Electrostatic discharge information
on page
8
.
When handling a memory module, be careful not to touch any of the contacts. Doing so can damage the
module.
Before replacing the memory modules, follow these steps:
1.
Prepare the computer for disassembly (see
Preparation for disassembly
on page
18
).
2.
Remove the access panel (see
Access panel
on page
19
).
3.
Remove the optical drive (see
Optical drive
on page
23
).
4.
Remove the drive cage (see
Hard drive
on page
25
).
5.
Remove the front bezel (see
Front bezel
on page
24
).
Replace a memory module:
30
Chapter 4
Removal and replacement procedures