300A Celeron

[matrix]

hello friends... i am new to this board
and new to over clocking...

i have a 300 A cleron
BH6 Mobo
and 128 .. im guessing pc 100

have any suggestions.. on what i should do..
i have a pic of the mobo...[img="http://http://worldzone.net/art/lvlatrix/Mobo.jpg"]

[vipez888]

Well the celeron 300A is well known as the first overclocking king.

Go into your BIOS(reboot & press Del to get in)

Go to CPU setup/Chipset setting

Increase the FSB or the Bus Frequency to 100mhz
You may also need to increase the voltage for stability. Try 2.1V or 2.2V

Now save the settings and reboot.

Hopefully you will have 450mhz celeron now..be sure to run some games and applications and burn in programs to ensure stability.

Have phun!

[GauntMan]

Yepp, agree with former poster. If you´re unable to increase voltage you should at least get fsb to 83Mhz (means 400Mhz rael life) with standard volt.

[marty]

Also in BIOS disable speed error hold if present in the settings for soft FSB of your Abit BIOS .

[DocClock aka MadClocker]

And if you're really lucky, you might get it to 504mhz, but only with good cooling.
I have a slot one celly 300a that does 504mhz, but is kinda squirly at that speed, although I did no burnin, I was just playing with my new board, and just had to try every chip I had...including a bum 500 katmai @533, a 450katmai @590 celey 300a mendocino @504, and 600e @956..but the other poster is right the 300a was the first chip to put overclocking in the mainstream...and in some cases, the 300a @ 450mhz would blow away a PIII450, because the 300a has full speed cache, where the 450 has half speed cache.
Boy, talking about the 300a brings back fond clocking memories :-) you should have fun...I did

[batboy]

Ah yes. You have the same exact setup as I did. Sold the chip, cooler and mobo to a buddy last June. I had one of those triple fan Computer Nerd's coolers and ran that chip at 464 for 1-1/2 years. My buddy lapped the heatsink and used better heat paste, then was able to crank it up to 504 MHz. I was a little disappointed he was able to get more out of it by doing something that simple. Like Doc says, this topic sure brings back memories. Sweet!

[matrix]

but what should i set everything else in the softmenu
thing......

Please AIM me at
olvlatrixo

[batboy]

Like was said earlier, disable the error speed check, go into user define and change the bus speed from 66 MHz to 75 MHz (let's walk before we run). The multiplier is locked so leave that at the 4.5 setting. See if it will run ok. If not jump the voltage up one notch (user define). If it works, try the next fsb setting. Just take it one step at a time. When it becames unstable, you'll have crashes or it won't even boot or post. That's when you back off and try something else, like better cooling, etc.

[marty]

In addition to better cooling you will have to play with increasing the voltage when crashes occur. I have a BH6 and 300A that is now my son's machine. It has been running fine for over 2 years.

In the hottest days of summer there is sometimes trouble, but 360 days a year it is very stable.

[tonsku]

I have also Cel300A running at 463MHz, on
Asus P2B. Core voltage is original, 2.0V. This
system is very stable! But now I have tried to go
504MHz! It boots normally, but when windows98
is almoust loaded.....!!!Crash!!!! Voltage is 2,2V
in this case. (A121 etc.pins of CPU is covered with tape to get 2,2V). I have very good cooling!!!
What is wrong..??

[Mr B]

My 300A is sitting in a box nearby....just played w/ it for a while recently, after finally getting a mb that allows vcore adjustments. Great chip. I had to lap the cpu and hsf, but was then able to get 477 @ 2.2v, 451 at default, with a generic "twin fan" cooler.

Use the Arctic Silver, and you should get the same, or might even get 504......

Good luck.

Mr B

[matrix]

Mr B (Mar 08, 2001 06:35 a.m.):
My 300A is sitting in a box nearby....just played w/ it for a while recently, after finally getting a mb that allows vcore adjustments. Great chip. I had to lap the cpu and hsf, but was then able to get 477 @ 2.2v, 451 at default, with a generic "twin fan" cooler.

Use the Arctic Silver, and you should get the same, or might even get 504......

Good luck.

Mr B



:) no wonder ....
ive been trying to o/c it with regular cooling
that i believe came with the cpu

...
i only got the fsb to boot up once with 73 mhz
whice makes 300 something
but when i restart .. it had reg. errors :(
then i tried 450 just in case.. without changing
voltage and stuff...

and the comp wouldnt boot :(

luckily.. i remembered reading somewhere
that i could reset the bios by
holding donwn insert..
and now
im running at 300a again :(

i guess ill just wait to
buy the vp6
with dual p3 1000

[Mr B]

Well, lapping the cpu and hsf is virtually free (cost of sandpaper, and some elbow grease), the A.S. runs about $12 to 15 for a 6.5 gram tube (good for a whole bunch of apps) on-line at a lot of sites, and the generic hsf I'm using is almost identical to the one the CompUSA stocks for around $15.

So, for some time spent, and $35 or so, you could probably get yours to 450+.

Or tuck the $$ away and pick up a 566 or 600 Celeron, that will go MUCH faster than that.

I got the Celeron listed in my "sig" (the 1053 MHz one) for $56 at e-BAY in January. Patience and frequent sifting thru the listings will turn one up if you try. (I also got very lucky...I happened to be looking right after they updated the listings, and it was Super Bowl Sunday....not many people shopping at that hour...=) )

I don't see in the above posts that you raised the voltage. If the board allows adjusting this, try bumping the core voltage up to 2.05 or 2.1v. Overclocking usually requires a modest increase in the vcore.

If raising the voltage doesn't help, then go shopping.

Good luck.

Mr B

Mr B

[Sempei]

I tend to agree with Mr B that your voltage may be a problem. I ran my 300A at 450 for 1-1/2 years on my BH6 with the stock Intel HSF. All I had to do was bump the voltage up to 2.1v.