Celeron 600 @ 83,3 FSB

[Guest]

When I set my Celeron 600 @ 83,3 FSB (750) I get strange lockups. The sound is still playing and the graphics is still working fine, but my keyboard and mouse stops working. I guess it has something to do with the increased PCI-bus speed but I don´t know for shure. Could someone help me please?

 

[lhgpoobaa]

possibly.
you may wish to try to increase the ram latency (to cas 3)
as well as change the AGP multiplier. (cellys are set at 1, but u can change it to 2/3)
and possibly increase the core voltage a notch or two,
see if that helps.
im in the same situation with my older celly 500, but it refuses point blank to boot at FSB of 83.3 🙁
75 is rock solid though.

any questions?
regards

ThePoo!

 

[Guest]

You can try and up the voltage it may help. It didn't do anything for me so I kept looking at 600Cellys til I found one (the one I'm using) that would go 100FSB so now I'm at 900Mhz rock stable! Before that I ran good at 750 but had to slow to 75FSB to run Quake3A (AGP problem) but all is well now, same equipment at 900.

lntk

-|-
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[Guest]

is this an old celeron 600?... if so, 750 is reachin about the high side of what this chip wants to do. but i think your on the right track with the pci speed. turn the pci divider to 1/3 (underclocking pci) and see if your problems go away.

-lex

 

[Guest]

hi,

----- before u try anything, make sure that, --------
1. have preoper cooling on the chip, though quite a number of chips run at 100FSB on stock intel H/S
2. Understands that overclockin on ur very own freewill is ur own responsibility.. 😛 it voids warranty, put stress on ur precious CPU, and not to mention giving u better bang for ur bucks.. 😛
----------------- so, here goes -------------
try to set ur FSB to 100MHz, which will run ur Cel2 @900
and, if ur motherboard supports, up ur voltage a bit, maybe to the range of 1.7~1.8v
then, change the AGP divider to 2/3 instead of 1/1
and lastly, change the PCI divider to 1/3, instead of 1/2

then, save n reboot ur system, it should work pretty well in this settings, I've got my Cel2 600 on the 5 week after release and it ran solid at 900 with 1.9v on a Abit Slotket3 convertercard on both the Abit BX6-R2 as well as the BE6-II motherboard with Kingston 128PC100 and KingMAX128PC133 cas2 rams, Creative GeForce2 32MB and 20GB Maxtor DiamondMax Plus40 HDD.

hopes it helps..

regards, jee

---------- edited ------------
My CPU runs well even with 2.3v vcore.
but i do have a PEP66 Alpha and do have quite a number of fans running in my system, but i did run it @900 with the stock intel Heatsink/fan combo.. i just added the alpha to get better result, posts on 1G (9x112) loads win, and freeze minutes after loaded into windows.
will try water cooling when free..
<P ID="edit"><FONT SIZE=-1><EM>Edited by jee on 11/21/00 11:46 AM.</EM></FONT></P>

 

[Guest]

What's you're PCI bus speed?
Normaly at 83.3 Mhz FSB it is highly overklocked. When I set my mobo at that speed my HDD's go crazy and write themselves full with crap.
PCI speed is normaly FSB/2 thus 33.3 mhz
over 38 mhz is unstable, yours is at a suicidal 42 Mhz!
That means you're AGP card (if ou have one) is running at 83 in stead of 66 Mhz, most cards burn out almost immediatly. Almost nobody recomends using that speed setting
That might problem nr 1.

Second, is you're RAM PC66 or PC100
83 mhz is the limit for PC66 ram, you should consider using PC100

third, try increasing CPU voltage. You might even push it to 100 mhz FSB and thus solving the PCI problem.
I got my PIII650@100 FSB working at 910@140 with a voltage increase from 1.65 to 1.75 (rock stable)
It works also at 985@150 but at 1.85 volts (witch will extremely shorten the life of you're CPU)

Hope this helps,

Godim

 

[Guest]

Hi,

I think u replied the wrong person..

but anyway,
all my system and components ran fine even at 83MHz, pci@1/2, AGP@1/1, all my HDDs and SB live, GeForce2, 3Com Network card, all ran fine..

My old TNT2 Ultra as well as the GeForce2 even ran at 100MHz (AGP 1/1) when i ran my Cel2-600 @100FSB, and it ran Q3A for 2 straight hours, case closed, stock heatsink on the AGP card.. one 8cm intake fan, and 1 8cm exhaust fan.

well... i know i am just plain lucky not to kill my cards at those speeds, but it does works fine!!