533a or 566? Which normally OCs higher to 900mhz+?

[MTDEW]

I recently bought a 533a pretested at 948mhz from a member of this board & yes the cpu performs at 948mhz flawlessly.
I'm completely satisfied with the stability of this cpu at this speed.

Now, I have a friend who wants to buy a Celeron2 566 in hopes of OC'ing it to 900+.
His reasoning is that with a 8.5 multiplier he should be able to Oc the 566 past 948mhz easily considering my 533a has an 8.0 multiplier.

But I noticed on this BBS that most people with 566s are running at 850mhz, this seems to be the most common speed these cpus OC to.

I would also think with a higher multiplier the 566 would hit 900mhz+ alot easier than a 533a cuz youre not dealing with quite as high fsb speeds.
But that does not seem to be the case here.
Why?

My friend is looking at buying a non-pretested 566 in hopes of achieving 900mhz+ , but from what Ive seen, this is NOT A GOOD IDEA.
Am I correct?

Which one of these cpus (533a/566) would you consider has the best chance at 900+ W/out being pretested?

Or is buying a non-pretested cpu not worth the money he'll save?

Anyone care to share what they think is the Best OC'ing Celeron2 that will hit 900mhz+ for the price currently available?

Any links to places with good Celeron2 prices would be greatly appreciated.

I know to you OCing vetrans out there these may be standard questions, I just dont want to see a good friend waste his money & end up disappointed.

I have no clue what to advise him to do, thats why I bought mine pretested, so I didnt have to make an uneducated guess!

 

[rigor]

Go to flEaBAY.com and do a search on celeron 533 , celeron 566, and celeron 633
ok

look at the prices and guaranteed rates. they are a little high imo.

many cel2 566 do not reach 850! dont have a sad face when you cel2 566 only does 95mhz fsb. hehe

 

[Eug]

I find it interesting that people MUST have 900+. 850 should be good enough, considering that's already almost a ~400 MHz overclock.

Just be aware, NEITHER the 533A or the 566 will hit even a 100 FSB 100% of the time.

 

[Elteor]

According to the CPU database from www.overclockers.com (for what it's worth), the average overclock speed for the celeron's is :

Celeron I PPGA 533 638
Celeron II FCPGA 533A 860
Celeron II FCPGA 566 873
Celeron II FCPGA 600 872

Although higher speeds can be reached, it seems that the higher series slightly loose overclock possibilities......

[edit - typed a little to fast .... - edit]

 

[Eug]

So which is it for the 533A? 860 or 872?

 

[StarCropper]

This is a little bit off-topic. I have a C-533A oc'd to 800 and I submitted my results a couple weeks ago to overclockers.com; however, the database for 533A's hasn't been updated yet (its had 77 entries for the past two weeks). Does anyone know how often they update their database?

sc

 

[Assimilator1]

MTDEW

The 533a is the safer bet ,you'll have a higher chance of at least hitting 100MHz FSB.
BTW you didn't say what chipset board he has ,if he has a BX board then you most likley be ok up to at least 112MHz FSB ,if its a VIA 133 then ,133MHz+ will be fine, RAM allowing

 

[StuckMojo]

I have experience with 3 different Celeron 566's and two different 533's. All five of these cpus were OEM versions - not pretested. The 533's are superior in my mind due to the lower clock mulitplier of 8.0. I am able to run at 100mhz fsb on both 566's with out changing default voltage, thus 800mhz. Bumping the voltage to 1.65 gets me to a rock solid 880mhz (110mhz fsb) where as with the 566's I can get to 100mhz fsb thus 850mhz only by bumping voltage to 1.65.

So comparing pushing the 8.0 cm 533 to the 8.5 566, I think it is safer to say that you can get past the 900mhz easier with the 533 with 115mhz fsb (920mhz) much more often than with the 8.5 cm 566 version at 110 fsb (935mhz).

This is from my experience...and I have been running overclocked celerons for about a year....dual 366's @ 550 --now w/ the 533 @880 soon to be pushed to 920mhz.