Current P4 mobos WON'T support Prescott

[Crashman]

A 3.4GHz Prescott should draw less power than a 3.2C Northwood, because of it's smaller die process. Even with the extra cache, it should draw less power, at lower voltage.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>

 

[Crashman]

I smell Bullshit. I had a Pentium 89MHz for a Socket 3 as well! So AMD gains nothing for their 5x86-P75 (486 DX/4-133). And So...you went from Pentium boards to Slot 1, then to Socket 423, then to Socket 478. You can skip socket 370 all together since Slot 1 went to 1GHz and the P4 was introduced shortly after. I mean, if you want to cheat. I can cheat as well as you. And then for AMD, you went from Socket 7 to Super 7 to Slot A to the KT133 board that only supported 100MHz bus speeds, to the KT133A which only supported 100/133MHz bus speeds, to boards that only supported 100/133/166MHz bus speeds, to boards that supported 400MHz bus speeds, and there were boards that limited your multiplier to 12.5...That's AMD 12 Intel 3.

See, I can play your game!

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>

 

[Quetzacoatl]

<A HREF="http://www.overclockers.com/tips00424/" target="_new">http://www.overclockers.com/tips00424/</A>

Motherboards that support Prescotts are also supposed to support a bit higher amperage than earlier standards. To quote from the VRD 10.0 datasheet (page 13).

System boards supporting Intel® Pentium® 4 Processor with Hyper-Threading Technology1 operating at 3.06 GHz or higher and processor code named Prescott must have voltage regulator designs compliant to applicable FMB electrical and thermal standards. For Intel® Pentium® 4 processors, this includes full electrical support of 70 A Icc_max specifications and robust cooling solutions to support 63 A thermal design current (TDC) indefinitely within the envelope of system operating conditions. For processor code named Prescott, this includes full electrical support of 78 A Icc_max specifications and robust cooling solutions to support 68 A thermal design current (VRTDC) indefinitely within the envelope of system operating conditions.

And...

As you can see, it is quite possible according to Intel to build an 865/875 board that is compatible with Prescott. It is also possible and allowable to build an 865/875 board that is not compatible with Prescott, too.

All depends on whether or not our fav motherboard manufacturers are going with a fine tooth comb over the Intel datasheets or not.



I want to see an <font color=blue>Ati Radeon 99999 Ultra Pro</font color=blue>, based on the <font color=red>AtiRage core</font color=red>. And people wonder how a <font color=purple>Geforce3</font color=purple> is better than a <font color=orange>Geforce4 Mx...</font color=orange>

 

[sirak]

I just bought a new system last night with an ASUS I865PE board so I could upgrade to a Prescott. This better not be true. Why would they change mb's for this? Wouldn't they wait until Grantsdale in mid 2004? Doesnt make much sense to change for a few processors.

 

[Crashman]

From that article:

It should be noted that the source for this "information" are certain unknown mobo makers. I would not be the least bit surprised if these manufacturers have 865/875 mobos that do not meet all the necessary criteria, while others do.

This puts them at a competitive disadvantage with those who do. What to do? Why, tell a story like this one to those perhaps not likely to doublecheck items like datasheets. This would tend to keep people from buying the competitor's product while they got up to snuff.

Now that sounds posible. In fact, I have little doubt that manufacturers such as PC Chips would do exactly that type of thing to cut cost.

As for the Prescott, I believe it refered to a maximum 78A? Well, the Prescott will scale to at least 5GHz, so I'm still fairly certain the 3.4 Prescott will use less power than the 3.2C Northwood. Intel recommended a minimum 70A support for the 3.06C!

Like I said originally, these specifications were available before the 865/875 chipsets.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>

 

[Quetzacoatl]

Well, yeah, i'm entirely agreeing with you. i865/875 motherboards can and should support the prescott. And yes, i'd be more than willing to bet some *Coughs* ECS *Coughs* cut the voltage regulation corners to save cash...hmm...probably with some stupid add, that says something about supporting the "New and improved Intel Pentium 4 based on the Prescott core!" in their shady advertisements.

I want to see an <font color=blue>Ati Radeon 99999 Ultra Pro</font color=blue>, based on the <font color=red>AtiRage core</font color=red>. And people wonder how a <font color=purple>Geforce3</font color=purple> is better than a <font color=orange>Geforce4 Mx...</font color=orange>

 

[endyen]

But you still dont say anything about socket 5 or socket 8. Yup there's bullshit here all right. I to would love for 865/875 to support prescott, but intel has not shown in the past that that will happen. I think the problem stems from the scotties needing lower voltage though, not higher. After all scotties are little softies.

 

[Crashman]

AMD used Socket 5 also. And Socket 8 was a server platform.

And if you want to go that far, I can tell you that a Socket 5 board will run a Pentium 233MMX, not all Socket 7 boards were dual voltage, and that you could buy a Socket 8 to Slot 1 adapter.

<font color=blue>Watts mean squat if you don't have quality!</font color=blue>

 

[mr_gobbledegook]

Thought I'd post my reply from <A HREF="http://forumz.tomshardware.com/hardware/modules.php?name=Forums&file=viewtopic&p=142780#142780" target="_new">another thread</A> here as well..

Just a warning to all chip enthusiasts...

<font color=blue>The Prescott core will be introduced at two clock speeds - 3.2GHz and 3.4GHz. The 3.2GHz part will obviously overlap with the forthcoming 3.2GHz Northwood part, while the 3.4GHz speed will be a Prescott-only core. The other thing to keep in mind is that both of these CPUs are <b>still Socket-478 parts, you won't see the first Socket-775 CPUs until Q2 2004</b>, which we will talk about next.

The 3.4GHz Prescott will close off 2003, but in Q1 '04 we'll see another speed bump to 3.60GHz. <b>This 3.60GHz processor will be the one to stay away from, because it is still a Socket-478 CPU.</b> In the following quarter, Q2 '04, Intel will introduce a Socket-775 LGA version of the 3.60GHz Prescott processor as well as 775-pin versions of the 3.2/3.4GHz Prescott processors.</font color=blue>

So it seems Intel might be releasing Prescott prematurely so its P4 line doesn't get eclisped by A64 leaving hardcore techies waiting till Q2 2004 for the real 775-pin version (with Grantdale chipset) while average joe rush out and buy the new <i>duff</i> Socket-478 Prescott.

<font color=purple>Ladies and Gentlemen, its...Hammer Time !</font color=purple>

 

[Mephistopheles]

This 3.60GHz processor will be the one to stay away from, because it is still a Socket-478 CPU.

You know, I had read that before already, and I thought the logic was a bit skewed in the first place. What's the deal with the 3.6Ghz specifically? If you're to stay away from it, then why not stay away from all 3.2, 3.4 and 3.6 socket-478 prescotts, unless you're upgrading?... Go with the much more sophisticated grantsdale pinless sockets! Speaking of which...

775-pin

...this is a funny one. There are no 775 pins on grantsdale, because there are simply no pins anymore. Which shows just how much thought went into that article.

<font color=red><b>M</b></font color=red>ephistopheles

 

[sabbath1]

You know, I had read that before already, and I thought the logic was a bit skewed in the first place. What's the deal with the 3.6Ghz specifically? If you're to stay away from it, then why not stay away from all 3.2, 3.4 and 3.6 socket-478 prescotts, unless you're upgrading?... Go with the much more sophisticated grantsdale pinless sockets! Speaking of which...

Probably because the S478 3.6 Ghz will be released quite simultaneously with the 775-pin/"dot" compatible Prescott.
I for one will probably go for the 3.4 GHz S478 Prescott when it comes out, if I have the money of course. Then next year I might go Grantsdale.

...this is a funny one. There are no 775 pins on grantsdale, because there are simply no pins anymore. Which shows just how much thought went into that article.

There are no pins, but aren't there gonna be small dots? In that case, maybe they were talking about 775 dots


My system: Intel Pentium 4 3.0, 800FSB / TwinMOS 1Gb DDR400 / MSI 875P Neo / Sapphire Radeon 9800 Pro / Antec True Power 550W / Western Digital Raptor / Hercules G.T XP /
Samsung DVD / Lite-On CDRW

 

[HardWareBoss]

Thats old news he's posting. Plus he says its Hammertime. Maybe thats why he replyed to start a battle with Hammer an Prescott.