How high have you run your fsb before you noticed problems?

erikiksaz

Diamond Member
Nov 3, 1999
5,486
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76
I'm just wondering as i've seen many run their fsb at a very high setting, but rarely do people ever speak about their problems. If you've ever had issues with a high fsb, please tell. And include your setup, along with dividers, etc. Thanks
 

pillage2001

Lifer
Sep 18, 2000
14,038
1
81
153Mhz and beyond gave me data corruption and whatnot. I'm on a A7V266E board. :) Only 1/4 dividers on this board.
 

Noid

Platinum Member
Sep 20, 2000
2,390
193
106
Im at 191.4 right now ...

using a 5:2:1 divider / the CPU & MEM are 1:1

Typically .. if you cant run Prime95 (computer freezes or reboots) ... your unstable

If you dont use the tools mentioned in this forum (like prime95)

you could experience the computer freezing or rebooting while using your programs.

This could be from PCI of AGP devices not being able to handle the higher FSB.

or

Too high can give screen artifacts , and / or data corruption as mentioned above

(data corruption usually is when windows gets read or write errors posted on the screen on startup)

If this happens you probably corrupted windows, and it wont boot up again.

I always have a ghost image backup of my HD incase of corruption when experimenting.
 

Bovinicus

Diamond Member
Aug 8, 2001
3,145
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0
I usually like to keep my FSB under 150, unless the proper dividers for the AGP/PCI bus are there. Video tearing and loss of synchronization with the sound card clock are two common problems with overclocking the FSB. 75MHz for the AGP bus and 37.5MHz for the PCI bus are pretty safe maximums. Some people can take their systems further. It greatly depends on the motherboard and add-in cards in your system. Take your FSB up a few MHz at a time to avoid serious problems.
 

Nohr

Diamond Member
Jan 6, 2001
7,302
32
101
www.flickr.com
Couldn't get 211FSB stable, even with the RAM at CAS3 9-4-4 2.8v. 207FSB I tried at CAS3 8-3-3 2.6v and after a rather bad blue screen XP wouldn't boot at all. Had to replace a system file from the cd. I haven't dared stray over 200FSB since.

I normally run at 7x198FSB for 1386MHz, CAS2.5 7-3-3 2.8v. Highest I can get stable is 200FSB. Haven't tried between 200 and 207 as backing down to CAS3 probably isn't worth it.

Oh, and I don't have to worry about dividers. PCI bus stays locked at 33MHz regardless of the FSB setting. AGP is similar, though you can choose what it's locked at with settings between 50-100MHz. I love this motherboard. :D

Athlon Tbird 1GHz
Asus A7N8X Deluxe
2 x 256MB Crucial PC2700
 

BD231

Lifer
Feb 26, 2001
10,568
138
106
180 with the KT333 chipset has been the barrier for me, anything past that and I have to raise voltage on my memory and lower cas most likely which is not worth the risk I feel. Plus, at 180 my pci/agp cards are already running way out of spec, sound was an issue that I was able to take care of though.
 

techfuzz

Diamond Member
Feb 11, 2001
3,107
0
76
Anything over 205 and Windows would load but eventually BSOD.. Sometimes I would get strange streaking while in the BIOS with vertical bars going up-down the screen... Decided to stick with 200 so I could run my memory asynchronously.

techfuzz