What Causes Hard Disk Corruption When Overclocking?

[zhenya]

Yesterday I was trying to push my chip a bit higher, got to some speeds that would boot past the windows startup screen, then freeze, and when I set it back to normal, Windows 2000 wouldn't boot because some system files were corrupted. I'm certainly thrilled with it the way it is now, but having the o'c'ing bug, I'm gonna want to play with it some more, so if there is something in particular that might be causing it that I could watch out for, that would be good, as my 5 day old barely burned in celeron 600 is running great @1035, but I would like to see it go higher, but I'm afraid of pushing it any more because I don't feel like fixing windows all the time. Any thoughts appreciated.

[Sohryu Asuka Langley]

Urm...shouldnt you be happy with that? I dont think a celly600 can go much faster then that. maybe find a P3 700E and get the past the 1Ghz mark... should be about 20% faster then your curretn set up or so. Of course...get a 1Ghz chip and try for 1.3ghz

K6-2 450@650
Celly 700@874
Tbird1G@1.2G

[zhenya]

Sure, I am more than happy with it, but isn't overclocking about getting every bit possible out of your chip? I've had this chip boot at 1110mhz, so I know it has more potential, but I won't push it if I have to keep worrying about corrupting my hard drive, so I'm just looking for an answer as to what it is about overclocking that can cause hard drive corruption, and if there is anything you can do to prevent it, or if it was something I did wrong that did it. Thanks!
Zhenya

[batboy]

The harddrive corruption during overclocking is normally because of the harddrive running out of spec. At 1035 MHz, you are running 115 fsb, which means the PCI bus is running at 38 MHz compared to 33 default (the IDE controller lives on the PCI bus). Some harddrives are more tolerent to overclocking than others. I have a Maxtor 40 gig 7,200 rpm drive that scrambles itself when I try to overclock the PCI bus at 40 MHz. Some motherboards have different clock divider settings. Time to dust off that motherboard manual and read up. I've read lots of articles that say the new IBM 7,200 rpm drives are very good overclockers.

[zhenya]

Thanks, that sounds like a reasonable explanation, unfortunately the next bus speed after 115 with a low pci bus (31mhz) is 124, that puts the chip at 1116. I know this chip can do it, just not without a lot more cooling! Oh well, a 435mhz overclock and 1035mhz for less than $100 including slotket, heatsink, and fan isn't too bad!
Zhenya