Author: Robert Hyatt
Date: 08:43:38 02/19/03
Go up one level in this thread
On February 19, 2003 at 02:25:39, Aaron Gordon wrote: >On February 19, 2003 at 01:45:52, Matt Taylor wrote: > >>On February 19, 2003 at 01:33:33, Aaron Gordon wrote: >> >>> >>>>AMD doesn't guarantee 2.3 GHz out of any of their chips. As I recall, you had a >>>>particularly bad one recently... >>>> >>>>Anyway, if AMD doesn't define the limit of stability, who does? Some P4s >>>>overclock to 4 GHz now, don't they? >>>> >>>>-Matt >>> >>>Yeah, I got a JIUHB 0301, The TbredBJ's (J being JIUHB) are the $50 chips that >>>do 2.0 to 2.3GHz, I got 2.15GHz, I wasn't happy so I sent it back. TbredBA's are >>>much better (A being AIUHB). They WILL do 2.3GHz to 2.6GHz. Get any AIUHB 0242 >>>(week 42 of 2002) or newer and you will be guaranteed to hit 2.3GHz. How do you >>>know which chip you're getting? Well, on excaliberpc.com they guarantee you get >>>a 2100+ AIUHB 0304 (week 4 of 2003) TbredBA. Also, yes, some P4's have been >>>hitting 4Ghz but thats with freon. An XP 2.5GHz is compariable in speed to a >>>P4-4GHz and you can get the XP to 2.5 on just air. With Freon they'll go up to >>>over 3GHz. >>> >>>From what I've seen/heard AMD/Intel just make chips on a few lines. AIUHB's for >>>example. Once they hit a better chip consistantly overall or add something new >>>(like AXIA vs AYHJA, running 20% cooler) they'll add another stepping. Also I >>>figure they both do this.. lets say AMD is producing all it's highest quality >>>cores (as both AMD/Intel are doing constantly) and AMD chips can do 2.3-2.6GHz. >>>This means they can guarantee any of those chips to run 2.3GHz and lower, hence >>>you get the 2800+ (2.25GHz). I figure once they start producing chips that do a >>>minimum of 2.4GHz, 2.5Ghz, etc (Maybe future AIUHB 0320's or perhaps some new >>>stepping alltogether) then they'll be able to release faster chips and guarantee >>>them at that speed. So what I'm trying to say is as long as there is a chance >>>they won't do such & such speed, they won't mark them as such. Some chips can, >>>however. >> >>That is pretty much what I said, but it is a different perspective. My point is >>that some chips -can't-. There is no point in stating that a particular >>processor can reach a specific nps because I can't simply go buy that processor. >>I can buy what AMD will sell me. If somebody runs their AthlonXP at 3 GHz under >>freon and reports their numbers, how does that help me? Likewise if somebody >>overclocks higher than I can, how does that help me either? >> >>>Enricos AIUHB 0246 for example runs 2525MHz at 1.92v air-cooled without >>>problems. My chip does 2440MHz (will be getting it up a little higher later on, >>>but you get my point). It is possible if AMD wanted to they could produce an X >>>number of chips and test them all (too time consuming) and only get the ones >>>that run 2.6GHz, then they could release those in a limited quantity. Of course >>>then everyone would get those chips instead and AMD would start losing money on >>>the chips they made previously where they could have waited and sold an X >>>ammount of slower chips. I'm not sure I'm explaining it right but I think you'll >>>understand what I'm talking about. >> >>I do. It is still a gamble according to what you say. >> >>-Matt > >I'm just saying you will get 2.3GHz out of an AIUHB 0242 or newer. That is a >definite. Now, getting higher is up to the chip. It looks like the average is >around 2.4ghz or so.. but if you want an absolute guaranteed 2.3ghz then you >can't go wrong with the AIUHB 0242 through present (latest I've seen is 0304). >Pretty good deal for $97, and if you want a definite 2GHz a JIUHB (any date) is >your chip, and again.. $56 makes it a steal. :) I'm saying you will get a few random bugs by doing so. I refuse to tolerate inconsistent behavior. The vendors market chips at a particular clock frequency for a _reason_.
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