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Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

Eventually got the onboard ESS sound disabled, and the USB working properly, by fiddling with the "device security" options in the BIOS. I was still hearing the "thinking noise" even with the ESS successfully disabled. I tried unplugging the onboard speaker, and hey presto, no noise. With the …

Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

Finally found the little beggar! :) ...it's the original cable from my own (currently busted) Deskpro SFF P3 450 - I replaced the original working CD-ROM drive and the new one came complete with cable. Thanks to PC Hoarder Patrol's extreme kindness, I've now been able to replace the CD-ROM cable - …

Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

The correct part number is 314014-001 (should be printed on the cable)...usually described something like " Compaq / HP CD-ROM cable (IDE) ". Think I have a spare somewhere - if you're still looking, and I find it, you can have it no charge :) That would be absolute amazing - incredibly kind of you …

Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

The cable to the CD drive is therefore 50 pin, as it not only transmits audio and data signal, but also provides power to the drive. There's no other power cable going into the drive. Any ideas of what to search for in order to find a replacement for this cable? It LOOKS like all of the 50-pin …

Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

I have one of these in excellent working order if you're interested in a spare. Pretty sure it's the same 500mhz version you have. I have the same 90w power supply but my CPu frequency jumpers have markings up to 700mhz. Thanks for the offer - but I really don't have space to start collecting spare …

Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

Many thanks for all of these very helpful comments! The "kentie" article was very interesting too. Looking in more detail, it looks like I have the older revision of the motherboard PCB, and just a 90w PSU. I was mistaken on thinking there was also a buzzer - will the internal speaker still work as …

Re: Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

Thanks for the reply! Just to clarify: by internal speaker you mean the thing that only makes beeps (commonly referred as PC Speaker)? Actually no, it's not a traditional PC speaker as in BIOS beep type buzzer (there's one of those separately). It's an actual audio speaker that has an internal …

Compaq Deskpro SFF P3 500Mhz - Restoration (and loud "thinking noise" issues - would a PCI card improve?)

Since I've been getting more into retro games I managed to pick up a nostalgic desktop system to play around with in Win98. It turned out that an early P3 was much more affordable than the kind of Socket7 system I actually remember as my first computer. This is it: a Compaq Deskpro SFF, which …

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