Ide hard drive doesn't get detected right

Hello everyone,
I have built a Windows 98 gaming machine some time ago. Everything worked normal until now. For some reason my PC doesn't detect the hard drive as Western Digital but it detects it as "ADA AD 0 L@- 7@NA2". I tried changing the jumper settings but after that it got detected as "QNQ QN 0 0 0 0...". The hard drive usually has 80gb of storage but in the bios settings it says it only has 6gb. The drive also doesn't boot to windows anymore.

If anyone could help me I would appreciate it!

Here are my specs:
Motherboard: Soyo sy-6be+
Processor: Pentium iii 450 mhz
Ram: 384mb
Hard Drive: Western Digital WD800
Gpu: 3dfx Voodoo 3 1000
 
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