AGP/PCI lock

DyslexicHobo

Senior member
Jul 20, 2004
706
1
81
I'd really like to push my overclock to the max, but I just read that not having the AGP/PCI buses locked at 66/33 mhz can cause data corruption.

If there is no setting to manually lock the PCI/AGP buses in the BIOS, am I SOL as far as overclocking goes?

If I do overclock without these bus speeds locked, what are the possible conflicts it can cause?
 

JohnAn2112

Diamond Member
May 8, 2003
4,895
1
81
You might be able to get a very mild overclock without harming the rest of your system, but in general, you shouldn't overclock if you can't lock those down to 66/33. The harmful results that may occur wouldn't be worth it IMO.
 

SparkyJJO

Lifer
May 16, 2002
13,357
7
81
What board/chipset do you have?

I had an old epox 8KHA+ that I overclocked my 1700+ tbred CPU to 1.68GHz with, the PCI was running at about 38MHz and really hated me if I went any further but right there it worked fine. YMMV though.
 

Doh!

Platinum Member
Jan 21, 2000
2,325
0
76
Which motherboard & what cpu? You may mod the cpu to boot at higher FSB w/o affecting the bus speed.
 

catalysts17az

Member
Sep 16, 2004
142
0
0
your the guy with the Asus mobo A8V Deluxe. i wrote my review in the other column you wrote, sorry bud but this board has a VIA chipset. see the other post you wrote. believe i tried and corrupted my hard drive at 220 so i am surprised you got up too 230. but back her down before its too late and you loose everything.
 

Doh!

Platinum Member
Jan 21, 2000
2,325
0
76
Originally posted by: catalysts17az
your the guy with the Asus mobo A8V Deluxe. i wrote my review in the other column you wrote, sorry bud but this board has a VIA chipset. see the other post you wrote. believe i tried and corrupted my hard drive at 220 so i am surprised you got up too 230. but back her down before its too late and you loose everything.

To whom are you replying?
 

DyslexicHobo

Senior member
Jul 20, 2004
706
1
81
He was replying to me. I had asked the same question in another topic, but I thought the thread was pretty much dead so I started this one. :)

And ya know... now that I think of it, it did have to chkdsk to fix some stuff, but I thought that was because it locked up while windows was loading. Heh, guess I'll stay at 2.2ghz for a while.
 

CP5670

Diamond Member
Jun 24, 2004
5,660
762
126
It depends on which revision of that board you have. The revision 2.00 boards supported async bus frequencies. The revision is printed prominently on the board itself. I used to have one of those at one point and got about 270 out of it, but that's pretty much the limit of the chipset.
 

Shawn

Lifer
Apr 20, 2003
32,236
53
91
I actually damaged an SATA hard drive by overclocking the pci bus too far. My PATA drives were all fine though.