What are the signs that an overclocked cpu might need more voltage

[G.Robert]

I built a system in April made of the following:
Soyo 6ba+4
P3-600e @800mhz fcpga
IBM 20gig 7200/ata66
mushkin 128mb pc133 cas2
creative geforce ddr 32mb
kenwood 72x cdrom
golden orb, 2 80mm sunon intake,2 80mm exhaust
antec ks188 case with antec pp303x 300 watt ps

The system has been very stable with an occasional lockup here and there but lately lockups are more frequent and occasionally right when windows is about to load, just befor the desktop comes up it will lockup, requiring a hard reboot. Is it possible that I need to up the voltage (at 1.65 now,default)? What would be good? 2.5%, 5%, 7.5% or 10%? Those are my options in cmos .
What would be a symptom if either the cpu or the memory was or is going bad?

 

[Diceman]

If its starting to lock up when windows is just loading....id say it may need a little more juice......BUT, the best way to test that is probably to run some intensive benchmarks like 3dmark2000 or prime95 (i think? i dont have)........my overclockd 700e@868mhz will run Q3 all day and night but locks up in 3dmark2000........till i back it down.....i got a dud 700e (compared to most since i need tons of juice for it) i need 1.95 just to post at 933mhz........

anyway, benchmark, benchmark, benchmark.........on bootup .loading all the windows crap is intensive for teh computer.......so do some other intensive stuff to stress it and see if can take it........

if it still locks up....try backing it down or upping the juice a littel at a time.......if it is the juice, it usually dont take much to fix it, .05v in my case on my p3v4x.

 

[Eug]

I love it... yet another piece of evidence that supports burn-in.

Just set the thing at 1.7 V on the slocket and test. If you still don't have stability, go to 1.75. Your GOrb should be fine. (You can play with the voltages in the BIOS but I prefer just setting it on the slocket. I find those Soyo percentage values a bit confusing.)

In my view, "very stable with an occasional lockup here and there" just isn't stable enough. Who knows if you're gonna be doing something very important when you lock up. Make sure your software isn't doing you in either.