Official C1 P4 stepping tracker.....

[Yourself]

I agree...another point with the C1's is voltage scaling. It appears that the limit of the core is basically the limit of the core...ie increasing voltage doesn't seem to buy you much headroom. That's why you see great C1 o'clocks at or near default voltage. So far on this chip, it's relative stable at 140 FSB at default voltage. Bumping the voltage all the way to 1.75 doesn't even buy me another 5 FSB. Although the O'clock is disappointing, it's pretty interesting actually(must be the geek in me)


Self

 

[Duvie]

Yourself the fact they have 1.8a and 2.0a are a great advantage...But the price for their 2.4bghz non retail is 25.00 dollars over the retail chips I have listed at Atacom.com.....The one yaer warranty would be fine for me since I upgrade frequently, but that is a bit of a premium....

So far on this chip, it's relative stable at 140 FSB at default voltage. Bumping the voltage all the way to 1.75 doesn't even buy me another 5 FSB.

That is interesting as every time of have seen that with a P4 it was not the chip holding me back...Did you do a fresh reformat and install??? I take it most of the parts like the ram and such were used in your nice 1.6a overclock??? That makes you think you can rule out a lot of the components....

 

[Yourself]

yep...always a fresh format and re-install when I get a new chip. I even re-installed my Alpha to make sure that wasn't the issue. As far as price is concerned, I agree 100% about it being a premium. The advantage lies in living locally I guess as we can guarantee our stepping/chip markings. But, as my chip proves, O'clocking always has been and always will be a crap shoot. If it wasn't everyone would do it huh?...


Self

 

[Duvie]

Sell it and get another!!!

 

[Yourself]

Amen brotha!!!(raises beer in toast to Duvie)




Self

 

[THUGSROOK]

yep...always a fresh format and re-install when I get a new chip.

why?
i dont even do a fresh install for a new board :Q (ok im a bad example)
but why for a cpu?

 

[Duvie]

speaking as a person who has had some ocing conflicts with OSes (win98 FE remember thugs) and seen it first hand with some ATI drivers wanting to be basically installed at the oced speed or they don't like to run....


A want a fresh start with each chip...I usually go back to start over mode with no cards except agp so basically it is a redo, right???

 

[THUGSROOK]

well, like i said im a bad example

i know how to minipulate win98 from safe mode to uninstall old software/drivers and remove all listings of hardware in the system. from there i just rebuild all hardware drivers from scratch.

im not even sure you can do that on XP ~ but on 98 its a piece of cake

 

[naddicott]

User feedback at newegg has confirmed C1 stepping for two 2.53s received 12/4 and 12/2. Not a sure source for C1s, but a good sign.

 

[Duvie]

I think I will wait to post that once the numbers of c1's coming out of there gets higher.....

 

[geekender]

Yikes....pc clubs rating.....here

 

[Duvie]

If you read most of those comments it is basically the same gripes I can give amount the morons at BestBuy and Circuit City.....I think CS is important but some of the gripes were pretty much general overall feelings as opposed to a negative transaction.....

 

[ScottyB]

I got a b0 from googlegear, so it is a no go on that.

 

[caboob]

i broke down and went PC Club (Lynnwood, WA) cuz I was curious (and bitten by the C1 bug) and picked up a C1 1.8A SL6LA Costa Rica OEM. it only does 155x18 at 1.65V and not much stable beyond that. i was hoping to find one that could do 166 fsb with a Vcore of 1.65 at the most but hey, its a 55% OC. Funny how i'm not impressed by that anymore.

I think i'll be trying to find a C1 2.26 in anticipation of getting a GB board.

 

[LukFilm]

If anyone wants a P4 2.4GHz 533MHz FSB C1 stepping, I have for sale for $190 shipped. Brand-new, don't know how high it overclocks. LMK.

 

[Yourself]

I bailed on my 1.8 C1 from PCClub and I picked up a used 2.4b oem in the for sale forums here and its humming at 2.91(18X162)@1.65v. The only thing is, it doesn't fit in the thread...B0

Self

 

[Duvie]

Wow that is 2 basic 1.8a C1 duds!!! I mean they are doing no better if not worse then what Thugs and a few other guys 1.8 B0 stepping was doing....

 

[Yourself]

worse actually...as increasing voltage on C1's doesn't buy you anything really


Self

 

[Jgtdragon]

Caboob and youself,
You guys buy from the same place...maybe a bad batch they are carrying?

Why are dell's 1.8a/2.0a/2.4b c1 doing better? They got a special batch or something?

 

[Duvie]

I am still perplexed by the issue why voltage increases buy you nothing!! The couple of dell procs I have seen at least gain a bit after default vcore. I am wondering how much of this may be due to the power issues of 2 phase mobos versus 3 phase mobos. Or maybe sub quality ram or timings way too high. I just can't see the chip hitting the wall like that in terms of stability and it being the cpu. Evry cpu be it amd or intel (even ram module in certain instananaces) gain stabilty an more overall mhz when vcore is raised. Now I don't see earlier northwood models being able to handle 1.7+ vcore completely stable and newer models not.


I need to see some more c1 overclocks in other range of chips....


Maybe this is a sign as Intel strives for more mhz the yields are getting less and now we are truly see the underachievers in the lower chips. Some just are not clocking out as fast as the bunch or the intended yield speed. Don't get me wrong you still get a tremendous oc, but the b0 stepping is offering as good as it in the low range.

I guess we can wait until we see larger numbers and this is just a bad batch as stated...

 

[caboob]

how about this proposal to see if the mobo might be a limiting factor: i trade my 1.8A for Thugs' 1.6A and let thugs test my 1.8A in his BE7? The BE7 with is 3-phase voltage regulation should result in higher more stable OC.

 

[Duvie]

You'd have to work that out with him!!!


Seems like an interesting idea, and it would be very helpful to determine whether or not many ocers are going to need to get different mobos to be able successfully overclock at these higher speeds....

Caboob...please go post your c1 overclock in my thread I just started...

 

[THUGSROOK]

Originally posted by: caboob
how about this proposal to see if the mobo might be a limiting factor: i trade my 1.8A for Thugs' 1.6A and let thugs test my 1.8A in his BE7? The BE7 with is 3-phase voltage regulation should result in higher more stable OC.

all i845pe boards have a 167fsb (+/- 2fsb) limit.

 

[caboob]

i just realized that in evans' PE chipset roundup, all the tested boards came up very close to each other with the Albatron board OCing the fsb the highest i believe.

 

[THUGSROOK]

Originally posted by: Duvie
I am still perplexed by the issue why voltage increases buy you nothing!!

motherboard limitations?