Barettes mémoires

Bonjour,

j'ai constaté un ralentissement de mon PC depuis quelques temps
c'est très vague car c'est un phénomème qui affecte tous les ordinateurs après un certain temps d'utilisation

Plusieurs causes sont possibles :

- comme tu y a pensé, ca peut etre une cause logicielle, un virus ou malware occupe beaucoup le CPU : il faut identifier le responsable et s'en débarrasser

- ca peut etre aussi un ralentissement du à la surchauffe :
l'encrassement su système de refroidissement qui est inévitable, conduit à une surchauffe et le CPU ralentit pour chauffer moins
Vérifie le système de refroidissement (il faut l'ouvrir complètement)
Pour + d'infos sur ce sujet :
mon-portable-chauffe-quelles-solutions-y-a-t-il

Enfin, meme si tout marche bien, comme les applications sont de plus en plus complexes, un PC semble ralentir au fil des années, mais c'est simplement parce qu'on lui demande d'en faire toujours davantage :
dans ce cas, il n'y a pas de solutions, à part utiliser toujours les memes logiciels, ou changer de portable pour un + puissant

est il possible que ce ralentissement provienne des barettes mémoires
peu probable, sauf si une barrette est défectueuse, conduisant à une quantité de mémoire réduite

Pour vérifier si les différents composants de ton PC fonctionnent normalement, je te conseille CPU-Z

Post une image des différents onglets stp

bonjour et merci pour toutes les infos
ci-dessous le résultat de CPU-Z

CPU-Z

Binaries
CPU-Z version 1.66.1.x64

Processors
Number of processors 1
Number of threads 2

APICs
Processor 0
-- Core 0
-- Thread 0 0
-- Core 2
-- Thread 0 4

Timers
ACPI timer 3.580 MHz
HPET timer 14.318 MHz
Perf timer 1.953 MHz
Sys timer 1.000 KHz
BCLK timer 133.35 MHz

Processors Information
Processor 1 ID = 0
Number of cores 2 (max 8)
Number of threads 2 (max 16)
Name Intel Pentium P6100
Codename Arrandale
Specification Intel(R) Pentium(R) CPU P6100 @ 2.00GHz
Package (platform ID) Socket 989 rPGA (0x4)
CPUID 6.5.5
Extended CPUID 6.25
Core Stepping K0
Technology 32 nm
TDP Limit 25 Watts
Core Speed 1200.2 MHz
Multiplier x Bus Speed 9.0 x 133.4 MHz
Rated Bus speed 2400.5 MHz
Stock frequency 2000 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 2 x 32 KBytes, 4-way set associative, 64-byte line size
L2 cache 2 x 256 KBytes, 8-way set associative, 64-byte line size
L3 cache 3 MBytes, 12-way set associative, 64-byte line size
FID/VID Control yes

Turbo Mode not supported
Max turbo frequency 2000 MHz
Max non-turbo ratio 15x
Max turbo ratio 15x
Max efficiency ratio 7x
TDC Limit 25 Amps
Core TDP 25 Watts
Uncore TDP 0 Watts
Power @ 7x 2 Watts
Power @ 8x 3 Watts
Power @ 9x 5 Watts
Power @ 10x 7 Watts
Power @ 11x 9 Watts
Power @ 12x 12 Watts
Power @ 13x 16 Watts
Power @ 14x 20 Watts
Power @ 15x 25 Watts
Max bus number 63
Attached device PCI device at bus 63, device 2, function 1

Chipset
Northbridge Intel Havendale/Clarkdale Host Bridge rev. 02
Southbridge Intel HM55 rev. 05
Memory Type DDR3
Memory Size 4 GBytes
Channels Dual, (Symmetric)
Memory Frequency 533.4 MHz (4:16)
CAS# latency (CL) 7.0
RAS# to CAS# delay (tRCD) 7
RAS# Precharge (tRP) 7
Cycle Time (tRAS) 20
Row Refresh Cycle Time (tRFC) 86
Command Rate (CR) 1T

Memory SPD
DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format SO-DIMM
Manufacturer (ID) Nanya Technology (7F7F7F0B00000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number NT2GC64B88B0NS-CG
Serial number 04211A5E
Manufacturing date Week 16/Year 11
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-17-23 @ 457 MHz
JEDEC #3 7.0-7-7-20-27 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-25-34 @ 685 MHz

DIMM # 2
SMBus address 0x52
Memory type DDR3
Module format SO-DIMM
Manufacturer (ID) Nanya Technology (7F7F7F0B00000000)
Size 2048 MBytes
Max bandwidth PC3-10700 (667 MHz)
Part number NT2GC64B88B0NS-CG
Serial number 621A1A5F
Manufacturing date Week 16/Year 11
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 5.0-5-5-14-19 @ 380 MHz
JEDEC #2 6.0-6-6-17-23 @ 457 MHz
JEDEC #3 7.0-7-7-20-27 @ 533 MHz
JEDEC #4 8.0-8-8-22-30 @ 609 MHz
JEDEC #5 9.0-9-9-25-34 @ 685 MHz

Monitoring
Mainboard Model HMA71_CP (0x00000230 - 0x00BD3CE6)

LPCIO
Hardware Monitors
Hardware monitor ACPI
Temperature 0 43°C (109°F) [0xC5A] (THRM)

Hardware monitor Battery
Voltage 0 12.48 Volts [0x30C2] (Current Voltage)
Capacity 0 66000 mWh [0x101D0] (Designed Capacity)
Capacity 1 61523 mWh [0xF053] (Full Charge Capacity)
Capacity 2 61523 mWh [0xF053] (Current Capacity)
Level 0 7 pc [0x5D] (Wear Level)
Level 1 100 pc [0x64] (Charge Level)

PCI Devices
Description Host Bridge
Location bus 0 (0x00), device 0 (0x00), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x0044
Revision ID 0x02

Description PCI to PCI Bridge
Location bus 0 (0x00), device 1 (0x01), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x0045
Revision ID 0x02

Description VGA Controller
Location bus 0 (0x00), device 2 (0x02), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x0046
Revision ID 0x02

Description Communication Device
Location bus 0 (0x00), device 22 (0x16), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x3B64
Revision ID 0x06

Description USB 2.0 Controller (EHCI)
Location bus 0 (0x00), device 26 (0x1A), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x3B3C
Revision ID 0x05

Description Multimedia device
Location bus 0 (0x00), device 27 (0x1B), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x3B56
Revision ID 0x05

Description PCI to PCI Bridge
Location bus 0 (0x00), device 28 (0x1C), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x3B42
Revision ID 0x05

Description PCI to PCI Bridge
Location bus 0 (0x00), device 28 (0x1C), function 1 (0x01)
Common header
Vendor ID 0x8086
Model ID 0x3B44
Revision ID 0x05

Description PCI to PCI Bridge
Location bus 0 (0x00), device 28 (0x1C), function 5 (0x05)
Common header
Vendor ID 0x8086
Model ID 0x3B4C
Revision ID 0x05

Description USB 2.0 Controller (EHCI)
Location bus 0 (0x00), device 29 (0x1D), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x3B34
Revision ID 0x05

Description PCI to PCI Bridge
Location bus 0 (0x00), device 30 (0x1E), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x2448
Revision ID 0xA5

Description PCI to ISA Bridge
Location bus 0 (0x00), device 31 (0x1F), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x3B09
Revision ID 0x05

Description Serial ATA Controller
Location bus 0 (0x00), device 31 (0x1F), function 2 (0x02)
Common header
Vendor ID 0x8086
Model ID 0x3B29
Revision ID 0x05

Description SMBus Controller
Location bus 0 (0x00), device 31 (0x1F), function 3 (0x03)
Common header
Vendor ID 0x8086
Model ID 0x3B30
Revision ID 0x05

Description Data Aquisition and Signal Processing Device
Location bus 0 (0x00), device 31 (0x1F), function 6 (0x06)
Common header
Vendor ID 0x8086
Model ID 0x3B32
Revision ID 0x05

Description Network Controller
Location bus 8 (0x08), device 0 (0x00), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x08AE
Revision ID 0x00

Description Ethernet Controller
Location bus 9 (0x09), device 0 (0x00), function 0 (0x00)
Common header
Vendor ID 0x1969
Model ID 0x2062
Revision ID 0xC1

Description Host Bridge
Location bus 63 (0x3F), device 0 (0x00), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x2C62
Revision ID 0x02

Description Host Bridge
Location bus 63 (0x3F), device 0 (0x00), function 1 (0x01)
Common header
Vendor ID 0x8086
Model ID 0x2D01
Revision ID 0x02

Description Host Bridge
Location bus 63 (0x3F), device 2 (0x02), function 0 (0x00)
Common header
Vendor ID 0x8086
Model ID 0x2D10
Revision ID 0x02

Description Host Bridge
Location bus 63 (0x3F), device 2 (0x02), function 1 (0x01)
Common header
Vendor ID 0x8086
Model ID 0x2D11
Revision ID 0x02

Description Host Bridge
Location bus 63 (0x3F), device 2 (0x02), function 2 (0x02)
Common header
Vendor ID 0x8086
Model ID 0x2D12
Revision ID 0x02

Description Host Bridge
Location bus 63 (0x3F), device 2 (0x02), function 3 (0x03)
Common header
Vendor ID 0x8086
Model ID 0x2D13
Revision ID 0x02

DMI
DMI BIOS
vendor Insyde Corp.
version V1.01
date 06/02/2011
ROM size 2048 KB

DMI System Information
manufacturer Acer
product Aspire 7739ZG
version V1.01
serial LXRLA0200912513DCB6500
UUID {F3BDAA00-CC33-815C-3C3C-E06995EEB14C}
SKU Calpella_CRB
family Intel_Mobile

DMI Baseboard
vendor Acer
model HMA71_CP
revision Type2 - Board Version
serial Type2 - Board Serial Number

DMI System Enclosure
manufacturer Chassis Manufacturer
chassis type Notebook
chassis serial Chassis Serial Number

DMI Extension Slot
designation J5C1
type AA
populated yes

DMI Extension Slot
designation J6C1
type A6
populated no

DMI Extension Slot
designation J6C2
type A6
populated yes

DMI Extension Slot
designation J6D2
type A6
populated no

DMI Extension Slot
designation J7C1
type A6
populated no

DMI Extension Slot
designation J7D2
type A6
populated no

DMI Extension Slot
designation J8C1
type A6
populated yes

DMI Extension Slot
designation J8C2
type AA
populated yes

DMI OEM Strings
string[0] String1 for Original Equipment Manufacturer
string[1] String2 for Original Equipment Manufacturer
string[2] String3 for Original Equipment Manufacturer
string[3] String4 for Original Equipment Manufacturer
string[4] String5 for Original Equipment Manufacturer

DMI Physical Memory Array
location Motherboard
usage System Memory
correction None
max capacity 8192 MBytes
max# of devices 2

DMI Memory Device
designation DIMM0
format SODIMM
type unknown
total width 64 bits
data width 64 bits
size 2048 MBytes

DMI Memory Module
designation DIMM0
size 2048 MBytes (single bank)

DMI Memory Device
designation DIMM1
format SODIMM
type unknown
total width 64 bits
data width 64 bits
size 2048 MBytes

DMI Memory Module
designation DIMM1
size 2048 MBytes (single bank)

DMI Memory Controller
correction unknown
Max module size 8192 MBytes

DMI Processor
manufacturer Intel(R) Corporation
model Intel(R) Pentium(R) CPU P6100 @ 2.00GHz
clock speed 2008.0 MHz

Graphics
Number of adapters 1

Graphic APIs
API Intel I/O

Display Adapters
Display adapter 0
Display name \\.\DISPLAY1
Name Intel(R) HD Graphics
Memory size 1754 MB
PCI device bus 0 (0x0), device 2 (0x2), function 0 (0x0)
Vendor ID 0x8086 (0x1025)
Model ID 0x0046 (0x0611)
Performance Level 0

Win32_VideoController AdapterRAM = 0x6DA6E000 (1839652864)
Win32_VideoController AdapterRAM = 0x3FFD0000 (1073545216)
Win32_VideoController DriverVersion = 8.15.10.2372
Win32_VideoController DriverVersion = 9.18.13.697
Win32_VideoController DriverDate = 04/15/2011
Win32_VideoController DriverDate = 10/02/2012

Software
Windows Version Microsoft Windows 7 (6.1) Home Premium Edition 64-bit Service Pack 1 (Build 7601)
DirectX Version 11.0

j'ai pas tout lu dans ce rapport hyper long (je t'avais demandé la photo des onglets CPU et mémoire), mais à 1ere vue tout semble normal coté RAM :
les 2 barrettes 2Go DDR3 1333 Hz sont bien détectées et tournent à 1066 MHz (limitation du CPU)

Seul souci éventuel, la quantité de mémoire assignée au Intel Graphics :
Name Intel(R) HD Graphics
Memory size 1754 MB
Ca te bouffe presque une barrette de RAM pour la puce Intel Graphics !
essaie de voir si tu peux réduire cette quantité de mémoire dans le Bios, si ce réglage est accessible