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requeijaum/memoria_pc_do_NERA-UFBA.md

Last active September 3, 2018 18:11
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Serviço pra Ricardo Requião.
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memoria_pc_do_NERA-UFBA.md

TL;DR

  • a RAM é boa, a CPU é lenta - porém é só 2GB. Precisa de 4GB pra ficar suave.

troque a CPU!!!1111 meta um par de RAM mais rapida e maior --> 2 x 2GB DDR3 1600MHz com latencias custom pra OC

ou

troque a RAM pra uma de maior capacidade... mantendo o esquema de ser um par igual ou de mesma frequencia

mobo: P5G41T-M LX2/BR (LGA775)

        <mainsection title="Motherboard" id="4">
        <entry title="Manufacturer" value="ASUSTeK Computer INC." />
        <entry title="Model" value="P5G41T-M LX2/BR (LGA775)" />
        <entry title="Version" value="Rev X.0x" />
        <entry title="Chipset Vendor" value="Intel" />
        <entry title="Chipset Model" value="G41" />
        <entry title="Chipset Revision" value="A3" />
        <entry title="Southbridge Vendor" value="Intel" />
        <entry title="Southbridge Model" value="82801GB (ICH7/R)" />
        <entry title="Southbridge Revision" value="A1" />
        <entry title="System Temperature" value="37 °C" />

2 GB de RAM DDR3 instalado

    <mainsection title="RAM" id="3">
        <section title="Memory slots">
            <entry title="Total memory slots" value="2" />
            <entry title="Used memory slots" value="2" />
            <entry title="Free memory slots" value="0" />
        </section>
        <section title="Memory">
            <entry title="Type" value="DDR3" />
            <entry title="Size" value="2048 MBytes" />
            <entry title="Channels #" value="Dual" />
            <entry title="DRAM Frequency" value="401.8 MHz" />
            <entry title="CAS# Latency (CL)" value="6 clocks" />
            <entry title="RAS# to CAS# Delay (tRCD)" value="6 clocks" />
            <entry title="RAS# Precharge (tRP)" value="6 clocks" />
            <entry title="Cycle Time (tRAS)" value="15 clocks" />
            <entry title="Command Rate (CR)" value="1T" />
        </section>
        <section title="Physical Memory">
            <entry title="Memory Usage" value="85 %" />
            <entry title="Total Physical" value="1.97 GB" />
            <entry title="Available Physical" value="297 MB" />
            <entry title="Total Virtual" value="3.93 GB" />
            <entry title="Available Virtual" value="1.60 GB" />
        </section>

Inspecionando as 2 memórias instaladas

  • dois pentes iguais de PC3-10700 - 1 GB cada

  • possível limitação ds FSB --> memória com gargalho, rodando a frequência mais lenta!

  • colocar 2 x 2GB ou 2 x 4GB de PC3-10700 é mais barato que usar 1x 4GB de qualquer outro tipo, visto que não vai mais rápido que 667 MHz por conta do FSB da CPU.

<section title="SPD">
            <entry title="Number Of SPD Modules" value="2" />
            <section title="Slot #1">
                <entry title="Type" value="DDR3" />
                <entry title="Size" value="1024 MBytes" />
                <entry title="Manufacturer" value="Smart Modular" />
                <entry title="Max Bandwidth" value="PC3-10700 (667 MHz)" />
                <entry title="Part Number" value="SH564288FH8N6PHSFG" />
                <entry title="Serial Number" value="122822988" />
                <entry title="Week/year" value="53 / 10" />
                <section title="Timing table">
                    <section title="JEDEC #1">
                        <entry title="Frequency" value="457.1 MHz" />
                        <entry title="CAS# Latency" value="6,0" />
                        <entry title="RAS# To CAS#" value="6" />
                        <entry title="RAS# Precharge" value="6" />
                        <entry title="tRAS" value="17" />
                        <entry title="tRC" value="23" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                    <section title="JEDEC #2">
                        <entry title="Frequency" value="533.3 MHz" />
                        <entry title="CAS# Latency" value="7,0" />
                        <entry title="RAS# To CAS#" value="7" />
                        <entry title="RAS# Precharge" value="7" />
                        <entry title="tRAS" value="20" />
                        <entry title="tRC" value="27" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                    <section title="JEDEC #3">
                        <entry title="Frequency" value="609.5 MHz" />
                        <entry title="CAS# Latency" value="8,0" />
                        <entry title="RAS# To CAS#" value="8" />
                        <entry title="RAS# Precharge" value="8" />
                        <entry title="tRAS" value="22" />
                        <entry title="tRC" value="30" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                    <section title="JEDEC #4">
                        <entry title="Frequency" value="666.7 MHz" />
                        <entry title="CAS# Latency" value="9,0" />
                        <entry title="RAS# To CAS#" value="9" />
                        <entry title="RAS# Precharge" value="9" />
                        <entry title="tRAS" value="24" />
                        <entry title="tRC" value="33" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                </section>
            </section>
            <section title="Slot #2">
                <entry title="Type" value="DDR3" />
                <entry title="Size" value="1024 MBytes" />
                <entry title="Manufacturer" value="Smart Modular" />
                <entry title="Max Bandwidth" value="PC3-10700 (667 MHz)" />
                <entry title="Part Number" value="SH564288FH8N6PHSFG" />
                <entry title="Serial Number" value="122823011" />
                <entry title="Week/year" value="53 / 10" />
                <section title="Timing table">
                    <section title="JEDEC #1">
                        <entry title="Frequency" value="457.1 MHz" />
                        <entry title="CAS# Latency" value="6,0" />
                        <entry title="RAS# To CAS#" value="6" />
                        <entry title="RAS# Precharge" value="6" />
                        <entry title="tRAS" value="17" />
                        <entry title="tRC" value="23" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                    <section title="JEDEC #2">
                        <entry title="Frequency" value="533.3 MHz" />
                        <entry title="CAS# Latency" value="7,0" />
                        <entry title="RAS# To CAS#" value="7" />
                        <entry title="RAS# Precharge" value="7" />
                        <entry title="tRAS" value="20" />
                        <entry title="tRC" value="27" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                    <section title="JEDEC #3">
                        <entry title="Frequency" value="609.5 MHz" />
                        <entry title="CAS# Latency" value="8,0" />
                        <entry title="RAS# To CAS#" value="8" />
                        <entry title="RAS# Precharge" value="8" />
                        <entry title="tRAS" value="22" />
                        <entry title="tRC" value="30" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                    <section title="JEDEC #4">
                        <entry title="Frequency" value="666.7 MHz" />
                        <entry title="CAS# Latency" value="9,0" />
                        <entry title="RAS# To CAS#" value="9" />
                        <entry title="RAS# Precharge" value="9" />
                        <entry title="tRAS" value="24" />
                        <entry title="tRC" value="33" />
                        <entry title="Voltage" value="1,500 V" />
                    </section>
                </section>
            </section>
        </section>

Investigar CPU

  • Pentium Dual Core E5800 Wolfdale! Bom!
  • limitação de FSB... que merda. O barramento fica mais lento por conta da CPU velha.
  • um Core 2 Duo ou Core 2 Quad faria diferença. A placa-mãe faria OC do FSB e tiraria o limite: podendo usar a RAM com o clock mais rápido suportado por ela.
<mainsection title="CPU" id="2">
        <section title="Intel Pentium E5800">
            <entry title="Cores" value="2" />
            <entry title="Threads" value="2" />
            <entry title="Name" value="Intel Pentium E5800" />
            <entry title="Code Name" value="Wolfdale" />
            <entry title="Package" value="Socket 775 LGA" />
            <entry title="Technology" value="45nm" />
            <entry title="Specification" value="Pentium Dual-Core CPU E5800 @ 3.20GHz" />
            <entry title="Family" value="6" />
            <entry title="Extended Family" value="6" />
            <entry title="Model" value="7" />
            <entry title="Extended Model" value="17" />
            <entry title="Stepping" value="A" />
            <entry title="Revision" value="R0" />
            <entry title="Instructions" value="MMX, SSE, SSE2, SSE3, SSSE3, Intel 64, NX, VMX" />
            <entry title="Virtualization" value="Supported, Enabled" />
            <entry title="Hyperthreading" value="Not supported" />
            <entry title="Fan Speed" value="2335 RPM" />
            <entry title="Rated Bus Speed" value="803.5 MHz" />
            <entry title="Stock Core Speed" value="3200 MHz" />
            <entry title="Stock Bus Speed" value="200 MHz" />
            <entry title="Average Temperature" value="37 °C" />
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