MEGAOVERCLOCK

PRIMA FASE DI TESTS.

La tabella A evidenzia i risultati dei tests effettuati con SI SOFT SANDRA 2001 STANDARD. Il test A (Cpu benchmark) misura le prestazioni della CPU in valori di ALU (MIPS) e FPU (MFLOPS). Il test B (Memory benchmark), indica le performaces delle SDRAM in INT ALU/RAM (MB/s) e FLOAT FPU/RAM (MB/s). Per ingrandire le immagini, clikkateci sopra!. Ricordo, che in questa fase di test il programma MEMORY ENABLED non è stato abilitato. La tabella B, mostra i risultati ottenuti con 3D MARK 2000 v.1.1.

Osservazioni:

Per selezionare diverse frequenze di bus principale e tempi di accesso alla memoria più o meno aggressivi, siamo entrati nel Bios della scheda madre. Nella schermata principale abbiamo selezionato i menu SPEEDEASY CPU SETUP (v. figura 10) e CHIPSET FEATURES SETUP (v. figura 11). Nel primo, abbiamo modificato le voci CPU SPEED, DRAM FREQUENCY e CLOCK SPREAD SPECTRUM. Nel secondo menu, abbiamo impostato diversi valori di BANK 0/1 DRAM TIMING e SDRAM CYCLE LENGHT.

FIGURA 10.

FIGURA 11.

TEST A Descrizione Test TEST B

Test 1.
Cpu Speed: 700 Mhz (66 Mhz X 10.5)
Dram Frequency: Bus clock.
Clock spread spectrum: Enabled.
Bank 0/1 Dram Timing: 10 ns.
Sdram cycle lenght: 3.

Test 2.
Cpu Speed: 700 Mhz (66 Mhz X 10.5)
Dram Frequency: Bus clock+33Mhz.
Clock spread spectrum: Enabled.
Bank 0/1 Dram Timing: Turbo.
Sdram cycle lenght: 2.

Test 3.
Cpu Speed: 700 Mhz (66 Mhz X 10.5)
Dram Frequency: Bus clock+33Mhz.
Clock spread spectrum: Enabled.
Bank 0/1 Dram Timing: 8 ns.
Sdram cycle lenght: 2.

Test 4.
Cpu Speed: 820 Mhz (78 Mhz X 10.5)
Dram Frequency: Bus clock.
Clock spread spectrum: Disabled.
Bank 0/1 Dram Timing: 10 ns.
Sdram cycle lenght: 3.

Test 5.
Cpu Speed: 820 Mhz (78 Mhz X 10.5)
Dram Frequency: Bus clock+33Mhz.
Clock spread spectrum: Disabled.
Bank 0/1 Dram Timing: Turbo.
Sdram cycle lenght: 2.

Test 6.
Cpu Speed: 820 Mhz (78 Mhz X 10.5)
Dram Frequency: Bus clock+33Mhz.
Clock spread spectrum: Disabled.
Bank 0/1 Dram Timing: 8 ns.
Sdram cycle lenght: 2.

Test 7.
Cpu Speed: 872 Mhz (83 Mhz X 10.5)
Dram Frequency: Bus clock.
Clock spread spectrum: Enabled.
Bank 0/1 Dram Timing: 10 ns.
Sdram cycle lenght: 3.

Test 8.
Cpu Speed: 872 Mhz (83 Mhz X 10.5)
Dram Frequency: Bus clock+33Mhz.
Clock spread spectrum: Enabled.
Bank 0/1 Dram Timing: Turbo.
Sdram cycle lenght: 2.

TABELLA A.

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TEST A	Descrizione Test	TEST B
	Test 1. Cpu Speed: 700 Mhz (66 Mhz X 10.5) Dram Frequency: Bus clock. Clock spread spectrum: Enabled. Bank 0/1 Dram Timing: 10 ns. Sdram cycle lenght: 3.
	Test 2. Cpu Speed: 700 Mhz (66 Mhz X 10.5) Dram Frequency: Bus clock+33Mhz. Clock spread spectrum: Enabled. Bank 0/1 Dram Timing: Turbo. Sdram cycle lenght: 2.
	Test 3. Cpu Speed: 700 Mhz (66 Mhz X 10.5) Dram Frequency: Bus clock+33Mhz. Clock spread spectrum: Enabled. Bank 0/1 Dram Timing: 8 ns. Sdram cycle lenght: 2.
	Test 4. Cpu Speed: 820 Mhz (78 Mhz X 10.5) Dram Frequency: Bus clock. Clock spread spectrum: Disabled. Bank 0/1 Dram Timing: 10 ns. Sdram cycle lenght: 3.
	Test 5. Cpu Speed: 820 Mhz (78 Mhz X 10.5) Dram Frequency: Bus clock+33Mhz. Clock spread spectrum: Disabled. Bank 0/1 Dram Timing: Turbo. Sdram cycle lenght: 2.
	Test 6. Cpu Speed: 820 Mhz (78 Mhz X 10.5) Dram Frequency: Bus clock+33Mhz. Clock spread spectrum: Disabled. Bank 0/1 Dram Timing: 8 ns. Sdram cycle lenght: 2.
	Test 7. Cpu Speed: 872 Mhz (83 Mhz X 10.5) Dram Frequency: Bus clock. Clock spread spectrum: Enabled. Bank 0/1 Dram Timing: 10 ns. Sdram cycle lenght: 3.
	Test 8. Cpu Speed: 872 Mhz (83 Mhz X 10.5) Dram Frequency: Bus clock+33Mhz. Clock spread spectrum: Enabled. Bank 0/1 Dram Timing: Turbo. Sdram cycle lenght: 2.