O/C Celeron 400 - abit

[jjsterling]

Having trouble overclocking

Abit bx6r2.0
Celeron 400 Slot 1
Bios Award 4.51pg - latest flash
128 of sdram at 133ns mem
Win98se

Soft Menu II
CPU Oper Speed User Define
Turbo disable
Ext Clock(PCI) 75mhz (1/2)
Multiple 4.5
Sel100/66 High
AGP/CPU 2/3
L2 Cache Latency Default
Speed Error Hold Disable
CPU Power Supply CPU Default
Core Voltage 2.00v

Gives 450 mhz.
OpSys POST's but not stable
What are my BIOS Overclocking options?

[batboy]

First off, a Celeron 400 has a multiplier of 6, not 4.5 as you stated. Everything else looks ok. Two things I would suggest: 1) remove the CPU heatsink, clean it up, and reinstall it use a good thermal paste. 2) If you still have stability problems, try bumping up the voltage to maybe about 2.1v.

[DAppel]

First of all : lap your HS, and your CPU if possible. The celly cpu core is enourmously curved. Lapping does a great difference.

2.3V is pretty normal on cellys too.

It is possible to get a good overclock from these chips. Mine does 570MHz 2.3V, and it is possible to get even more from it if I use a better HS os a watercooler.

[]´s

[batboy]

I advise against lapping the CPU unless you know what you're doing, are very careful, and don't get carried away. Lapping the heatsink is definitely a good idea. I also advise against running the voltage above 2.2v unless you have a better CPU cooler (like one of those big hunking dual fan coolers) and have done some other cooling mods like extra case fans, etc..

[Yodums]

Well its slot 1 .. And I'm guessing that his you've got the stock Intel fan on and .. That I think that if you take it off you'll have a really hard time taking it off..

I would reommend you go out buy a cheap heatsink like a Golden Orb since your chip doesn't need some extreme cooling since it runs pretty cool..

While your at that grab yourself Artic Silver II and make sure you have good air flow in your system.

You might wanna consider reading guides on how to lap a gorb if you intend to get one since they run not as good lapped.
(Slot 1 are a pain to lap .. I just lapped mine and ... took hour and something heh)

Then when your done that get in the bios
Set your multiplier to 6..

And increase your FSB slowly.

75 FSB first.. Do a 1 hour burn in.. Then 83 FSB if possible 1 hour burn in..

[Yodums]

Oh and I forgot when you see some instablity problems in your Windows .. Move your voltage up slowly till you see it stable and DO NOT exceed 2.2 is my recommendations.. Unless you have some good temperatures.

[tainice]

I am sorry, but i what is lapping, and what does it do?

[batboy]

Lapping a heatsink is a way of sanding it perfectly flat and smooth in order to help with cooling. Do a search of past posts here for more info. Also, I think there is an article on the home page about how to do it on this website too.

The heatsink on my old Celeron 300A slot one CPU was fairly easy to remove. Now those Slot one P-III CPUs were a different story, what a pain in the hinny.

[jazztrumpet216]

Originally posted by batboy
Lapping a heatsink is a way of sanding it perfectly flat and smooth in order to help with cooling. Do a search of past posts here for more info. Also, I think there is an article on the home page about how to do it on this website too.

The heatsink on my old Celeron 300A slot one CPU was fairly easy to remove. Now those Slot one P-III CPUs were a different story, what a pain in the hinny.

Yea, I ruined a 600E trying to take that little piece of crap off. They're bad heatsinks, too, and their nearly impossible to get off. I used the case screw method on the next one and it worked beautifully. The heatsink on my old Celery 333 on the other hand... that came off easily.

[Yodums]

Screwing up the lappin can be dangerous .. Always monitor your temps!