Pc inutilisable, pourquoi?

Bonjour,

Récemment j'ai pu m'acheter d'occasion un ordinateur de bureau.
Celui-ci ne fonctionne pas et le message suivant s'affiche: "reboot and select proper boot device or insert boot média in sélect boot device and press a key" Mon anglais est très mauvais et je ne sais pas quoi faire.
J'ai regardé chez un copain ce que je pourrais faire mais rien n'a donné de résultats. C'est peut-être plus simple que ce que j'imagine. Dans le doute j'ai relevé toutes les informations du Bios que j'ai trouvé.
Si quelqu'un pouvait m'aider, cela me serait bien utile.

Par avance, je vous en remercie.

Bios Setup Utility

MAIN
System Overview
BIOS Version : K8NF6G-VSTA BIOS P1.40
Processor Type : AMD Semprom ™ processor 3000+ (64bit supported)
Precessor Speed : 1800MHz
Microcode Update : 20FC2/0
L1 Cache Size : 128KB
L2 Cache Size : 128KB
Total Memory : 512MB with 64MB shared memory
DDR1 : None
DDR2 : 512MB/166MHz (DDR333)


ADVANCED
Advanced Seetting
WARNING: Setting wrong values in below sections may causes system to malfunction.

CPU Configuration
Overclock mode [Auto]
CPU Frequency (MHz) [200]
PCIE Frequency (MHz) [100]
Boot Failure Guard [Enabled]
CPU/LDT Spread Spectrum [0.75% Hershey]
PCIE Spread Spectrum [Enabled]
SATA Spread Spectrum [Enabled]
Cool' n' Quiet [Auto]
Processor Maximun Multiplier x9 1800 MHz
Processor Maximun Voltage 1.450 V
Multiplier/Voltage Change [Auto]
Memory Clock [Auto]
Flexibility Option [disabled]
CAS Latency [Auto]
TRAS [Auto]
TRP [Auto]

Chipset Setting
OnBoard LAN [Enabled]
OnBoard HD Audio [Auto]
Front Panel [Auto]
CD-In [Enabled]
Share Memory [Auto]
Primary Graphics Adapter [PCI]
CPU – NB Link Speed [Auto]
CPU – NB Link Width [Auto]
DRAM Voltage [Auto]

ACPI Setting
Suspend to RAM [disabled]

Restore on AC/Power Loss [power off]
Ring-In Power On [disabled]
PCI devices power On [disabled]
PS/2 Keyboard Power On [disabled]
RTC Alarm Power On [disabled]
ACPI HPET Table [disabled]

IDE Configuration
OnBoard IDE Controller [Enabled]
OnBoard SATA Controller [Enabled]
SATA Operation Mode [non-RAID]
> IDE Master [Not Detected]
Type [Auto]
LBA/Large Mode [Auto]
Block (Multi-Sector Transfer) [Auto]
PIO Mode [Auto]
DMA Mode [Auto]
S.M.A.R.T. [Enabled]
32Bit Data Transfer [Enabled]

> IDE Slave [Not Detected]
Type [Auto]
LBA/Large Mode [Auto]
Block (Multi-Sector Transfer) [Auto]
PIO Mode [Auto]
DMA Mode [Auto]
S.M.A.R.T. [Disabled]
32Bit Data Transfer [Enabled]

> SATAII 1 [Not Detected]
LBA/Large Mode [Auto]
Block (Multi-Sector Transfer) [Auto]
S.M.A.R.T. [Disabled]
32Bit Data Transfer [Enabled]

> SATAII 2 [Not Detected]
LBA/Large Mode [Auto]
Block (Multi-Sector Transfer) [Auto]
S.M.A.R.T. [Disabled]
32Bit Data Transfer [Enabled]

Advanced PCI/PnP Settings
PCI Latency Timer [32]
PCI IDE Busmaster [Enabled]

Floppy Configuration
Floppy A [1.44 MB 3 ½"]

Configure Super IO Chipset
OnBoard Floppy Controller [Enabled]
Serial Port Address [3F8/IRQ4]
Infared Port Address [2F8/IRQ3]
Parallel Port Address [378]
Parallel Port Mode [ECP+EPP]
EPP Version [1.9]
ECP Mode DMA Channel [DMA3]
Parallel Port IRQ [IRQ7]
OnBoard Game Port [Auto]
OnBoard MIDI Port [330]
MIDI IRQ Select [IRQ5]

USB Configuration
USB Controller [Enabled]
USB 2.0 Support [Enabled]
Legacy USB Support [Enabled]

BOOT
Boot Settings
Boot Settings Configuration
1st Boot Device [CD/DVD]
2nd Boot Device [Hard Disque]
3rd Boot Device [1st FLOPPY DRIVE]
>Removable Drives (1st Drive [1st FLOPPY DRIVE])

SECURITY
Security Settings
Supervisor Password : Not Installed
User Password : Not Installed