Self-made old computer become a CD-ROM killer?

sam1275tom

Reputable
Oct 13, 2014
462
0
4,860
Hi everyone. This is a long story, read this if you have time lol...

I'm playing with my ancient computer parts these days, and I build a old PC like this:
Mobo: VIA forgot model
CPU: (revived from death)Celeron PGA370 500mhz
Ram: 3x64mB SDPC100
HDD: Samsung 10GB IDE
PSU: ASUS OEM(Delta)
GPU: Winfast 3D donno model
2xintel 1000mbps LAN + realtek 100mbps LAN

I want to running PFsense on it but I get serious issue when booting CD-ROM.
First I connect a ZIM CD-ROM but it read the disk very unreliable, so I try to turn up the laser power, after that it works good for a minute, then break completely, even the disk spinner seems have trouble to accelerate, I'm sure I didn't break anything when disassemble and tune it, but...
Anyway, I through it back to the box and pick my another Samsung CD-ROM, this time it works so good, but I get frequently while random "ATA....DRDV_RDY_ERR" in console, I change several HDDs and always the same, but the cable seems to be the problem, at last I choose the only working cable and struggled to install PFsense into it, I still got a few errors but they got passed by retrying, and it boots.
Today I get some new 80-pin IDE cables and plugged them in, I want to reinstall the OS because there's seems to be some error log on every boot, I want to reinstall to fix them, but, this time, my Samsung begin to dying. No matter what cable I use, which CD I use, it always works extreme unreliable, it boot only 1 out of 10 retrys, sometimes cycle the tray will make the disk spin a bit, but suddenly stop and report no disk.....
I use LG blank CD and I burned a lot, always the same, so I think maybe the problem is the power supply,(I saw the power LED blink slightly sometimes, and both CD-ROM are difficult to spin up) I check the voltage in BIOS and by multimeter, all seems ok, and I also adjust the 12V line up for 0.1 volts, but still no effort.
So 2 CD-ROM are not working now and one even breaks to half life right in front of me, WHY???

Thank to anyone if ever read all my story... Please do not ask me why play with those old parts, I just like them. I'll appreciate if anyone can help me find out the problem..
 
Solution
12 years is quite the age for a power supply. Not sure why you think the load would significantly change by the tray being actioned. Output voltage is only one measurement. To accurately test a power supply you need an oscilloscope and preferably a variable load to see ripple and noise.

sam1275tom

Reputable
Oct 13, 2014
462
0
4,860


Thank you, but after changing the cable, the HDD works good, so I don't think it's the controller.
I tried to load the power supply by keep cycling the tray and the voltage drop about 0.1v, that power supply is newer as it's from a 2003 Pentium 4 computer.
 

Eximo

Titan
Ambassador
12 years is quite the age for a power supply. Not sure why you think the load would significantly change by the tray being actioned. Output voltage is only one measurement. To accurately test a power supply you need an oscilloscope and preferably a variable load to see ripple and noise.
 
Solution

sam1275tom

Reputable
Oct 13, 2014
462
0
4,860


Thank you, I can only test it by the tray because I don't have neither electric load instrument nor a oscilloscope, my oscilloscope's tube broke when I dropped from the desk...
The most strange part is both CD-ROM refuse to read the disk even no IDE connected, most time just the spindle trying to start, it move a bit and stopped. So I suspect the power too.