Memorii si alte RAM-uri

Kbps, PDA, MHz, VPU, X4, i7, DDR3.. chestii din'astea simple, pentru cunoscatori.

Memorii si alte RAM-uri

Postby Zorro Classic » Fri Jul 16, 2010 11:12 am

De ceva timp ma mananca pe ici, pe colo: vreau sa fac un upgrade la calculator.
Momentan am o placa ABIT AW8 MAX (http://www.abit.com.tw/page/uk/motherboard/motherboard_detail.php?pMODEL_NAME=AW8-MAX&fMTYPE=LGA775).
OS: Vista Professional 64b
Procesor: Pentium la 3,2 MHz, dualcore (nu mai stiu exact...)
Ca sa o iau incet, m-am gandit sa-mi iau ram-uri noi. Si acum incep dilemele mele:
- faptul ca e dual channel inseamna ceva? Trebuie sa am grija la ceva?
- momentan am 4 x 512M, deci 2 G. Trebuie sa iau tot 4 buc (adica 4 X 2G) sau merge si 2 X 4G? Merita sa pun 8 G sau sa ma limitez la 4?
- ce memorii merita sa pun? La ce fercventa?
Ce informatii pot sa mai dau ca sa poata sa ma ajute cineva cu informatii utile?
Fac si eu o cinste, organizez un drive test, chestii-socoteli!
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Re: Memorii si alte RAM-uri

Postby Aurelian 6n2 » Fri Jul 16, 2010 11:40 am

Eu zic ca-ti ajung 4Gb ddr.Iar ca si configurare a placutelor de memorie eu stiu ca trebuie sa fie identice ca si frecventa, adica sa fie toate de 800, 667 sau 533 Mhz, indiferent daca marimea In Mb sau Gb difera.
Faza cu dual-channel probabil e o chestie de latest upgrade la ddr-uri la fel ca la procesoarele dual sau quad-core, habar n-am, imi dau si eu cu parerea, probabil e de la caldura. :mrgreen:
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Re: Memorii si alte RAM-uri

Postby hhhrobi » Fri Jul 16, 2010 12:11 pm

Memorii suportate:

DDR2-800/667/533 - Cu cat mai mare frecventa cu atat mai bine. Dual channel inseamna ca fiecare dintre memorii poate accesa controlerul de memorie in acelasi timp = rapiditate.( http://en.wikipedia.org/wiki/Dual-channel_architecture). Cele de 4G cred ca sunt cam scumpe.. mai ieftin iesi cu 4X2G

In concluzie, eu iti recomand 4x 2G DDR2 la 800. Sau daca vrei mai ieftin iei acum 2x2G si mai adaugi cand mai strangi bani inca 2x2G
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Re: Memorii si alte RAM-uri

Postby Allex » Fri Jul 16, 2010 1:33 pm

Frumos chipset la placa de baza. Socketul nu-ti mai permite mare lucru ca procesor dar oricum e misto..
DDR2-ul s-a scumpit. Rau. DDR2-800 a ajuns sa coste cam mult in ideea ca incearca sa popularizeze DDR3 cat mai mult. Oricum, capacitatile de productie s-au redus si asta e bun motiv sa se duca preturile-n sus.

Si eu zic tot DDR2-800, un set 2x2GB in ideea ca nu stiu exact ce faci dar daca esti un computerist-average, iti ajung 4GB. Ulterior, in functie de nevoi, poti adauga 2x1GB sau 2x2GB. Importanta e si latenta. La 800MHz, cauta cu CL 4 (cele mai multe memorii DDR2 au CL5). Ca nume: Geil, Corsair, A-Data (Vitesta Extreme am eu in computer, 2x2GB DDR2 800) sunt cateva nume cu calitate foarte buna.
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Re: Memorii si alte RAM-uri

Postby Zorro Classic » Fri Jul 16, 2010 7:02 pm

CPU
Intel Pentium D 940
Cores 2
Threads 2
Name Intel Pentium D 940
Code Name Presler
Package Socket 775 LGA
Technology 65nm
Specification Intel(R) Pentium(R) D CPU 3.20GHz
Family F
Extended family F
Model 6
Extended model 6
Stepping 2
Revision B1
Instructions MMX, SSE, SSE2, SSE3, EM64T
Bus speed 199.5 MHz
Rated Bus speed 798.1 MHz
Stock core speed 3200 MHz
Stock bus speed 200 MHz
Caches
L1 data cache size 2 x 16 KBytes
L1 trace cache 2 x 12 Kuops
L2 unified cache size 2 x 2048 KBytes
Core 0
Core speed 3192.0 MHz
Multiplier x 16.0
Bus speed 199.5 MHz
Rated Bus speed 798.1 MHz
Thread 1
APIC ID 0
Core 1
Core speed 3192.0 MHz
Multiplier x 16.0
Bus speed 199.5 MHz
Rated Bus speed 798.1 MHz
Thread 1
APIC ID 1
Rated Bus speed 798.1 MHz
Stock core speed 3200 MHz
Stock bus speed 200 MHz
Caches
L1 data cache size 2 x 16 KBytes
L1 trace cache 2 x 12 Kuops
L2 unified cache size 2 x 2048 KBytes
Core 0
Core speed 3192.0 MHz
Multiplier x 16.0
Bus speed 199.5 MHz
Rated Bus speed 798.1 MHz
Thread 1
APIC ID 0
Core 1
Core speed 3192.0 MHz
Multiplier x 16.0
Bus speed 199.5 MHz
Rated Bus speed 798.1 MHz
Thread 1
APIC ID 1

Asta-i CPU.
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Re: Memorii si alte RAM-uri

Postby Zorro Classic » Fri Jul 16, 2010 7:04 pm

RAM
Memory
Type DDR2
Size 2048 MBytes
Channels # Dual
DRAM frequency 266.0 MHz
CAS# Latency (CL) 4 clocks
RAS# to CAS# delay (tRCD) 4 clocks
RAS# precharge (tRP) 4 clocks
Cycle time (tRAS) 11 clocks
Bank cycle time (tRС) 15 clocks
SPD
Number of SPD modules 4
Slot #1
Type DDR2
Size 512 MBytes
Manufacturer OCZ
Max bandwidth PC2-5300 (333 MHz)
Part number OCZ2667512V
SPD Ext. EPP
JEDEC #2
Frequency 333.3 MHz
CAS# latency 5.0
RAS# to CAS# 6
RAS# Precharge 6
tRAS 14
tRC 19
Voltage 1.800 V
JEDEC #1
Frequency 266.7 MHz
CAS# latency 4.0
RAS# to CAS# 4
RAS# Precharge 4
tRAS 11
tRC 15
Voltage 1.800 V
Slot #2
Type DDR2
Size 512 MBytes
Manufacturer OCZ
Max bandwidth PC2-5300 (333 MHz)
Part number OCZ2P667512
SPD Ext. EPP
JEDEC #1
Frequency 333.3 MHz
CAS# latency 4.0
RAS# to CAS# 5
RAS# Precharge 5
tRAS 13
tRC 20
Voltage 1.800 V
Slot #3
Type DDR2
Size 512 MBytes
Manufacturer OCZ
Max bandwidth PC2-5300 (333 MHz)
Part number OCZ2667512V
SPD Ext. EPP
JEDEC #2
Frequency 333.3 MHz
CAS# latency 5.0
RAS# to CAS# 6
RAS# Precharge 6
tRAS 14
tRC 19
Voltage 1.800 V
JEDEC #1
Frequency 266.7 MHz
CAS# latency 4.0
RAS# to CAS# 4
RAS# Precharge 4
tRAS 11
tRC 15
Voltage 1.800 V
Slot #4
Type DDR2
Size 512 MBytes
Manufacturer OCZ
Max bandwidth PC2-5300 (333 MHz)
Part number OCZ2P667512
SPD Ext. EPP
JEDEC #1
Frequency 333.3 MHz
CAS# latency 4.0
RAS# to CAS# 5
RAS# Precharge 5
tRAS 13
tRC 20
Voltage 1.800 V


Astea-s memoriile (2 de un fel si doua de alt fel...).
Le fac cadou dupa ce-mi iau unele noi.
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Re: Memorii si alte RAM-uri

Postby Zorro Classic » Fri Jul 16, 2010 7:09 pm

Ce-i cu latenta aia? Unele au 5-6-6-15, altele 5-5-5-18.
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Re: Memorii si alte RAM-uri

Postby Allex » Fri Jul 16, 2010 7:28 pm

Lectura despre ce inseamna timpii unei memorii RAM
Pentru o performanta cat mai buna a sistemului:
1. toate modulele din sistem trebuie sa aiba aceiasi timpi (de aceea se vand kituri din 2 bucati)
2. acei timpi trebuie sa fie cat mai mici

Ref. la CPU, poti pune un Quad Core pe socket 775. Ai aici oferta sortata descrescator dpdv pret.
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Re: Memorii si alte RAM-uri

Postby zakimaci » Thu Jul 29, 2010 6:35 am

Eu zi sa mai astepti si mergi pe i5 sau i7. Am montat cateva in ultima vreme si merg fantastic.
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