2.8Ghz is tops for P4

[Vette73]

Just read on anandtech news, that any P4 above 2.8Ghz will require a 4 Phase power supply, so board makers will have to make all new boards for the 2.8ghz+ chips.

I know some have asked if the newwer P4's will work in current boards, I guess the answer is no.

And it seems that if you have a KT333, KT400, or nForce 2, you will be able to run the 166Mhz Athlons, and probable even the Bartons.

 

[CloudsShinji]

Bah. Disappointing to say the least.

 

[newbiepcuser]

man, my motherboard is outdated already

 

[lookin4dlz]

Why are you posting blatantly incorrect information? The article clearly stated that this will require a change for P4 chips running above 3GHz.

 

[MIGhunter]

Where is the article?

Also, are there any current boards that will support the new 2.8gHz CPU when it comes out?

I have a 500 celeron processor that i want to upgrade. I would like to use a 2.8 when I do.

 

[ToBeMe]

WOW.......what a misleading thread title............

The 2.8 will work fine on all current boards unlike what the creater of this thread seems to indicate. Also, 2.8 is hardly "tops" for the P4! There will be no socket changes as Intel indicated, what WILL change is requirments due to the addition of Hyperthreading and SSE3 among a few other enhancements. Everyone/anyone whom did any research into hyperthreading and advanced chips knew future boards & P/S's would require the change. AMD will also neccessitate the change soon as well. Anyone whom thinks they would/could be able to advance chips without enhancing other hardware needs to do a bit more research into it..........as for the AMD's being able to run the faster FSB when it finally gets implemented, of course they will just as the P4 boards are capable of running the 400 & 533 chips. Barton will be the end for those boards though as "hammer" will require a new socket, new P/S's and new boards. AMD has already also indicated that the now being developed "K9" chips will neccessitate another socket change while Intel will stay with S478 through Prescott and possibly beyond.

 

[Vette73]

Anandtech NEWS !!!!!!!!!!



It looks as though Intel's upcoming 3GHz Pentium 4 will force board makers to make two different versions of their products:
Motherboard makers revealed plans to launch two board versions for each of their primary product lines in the fourth quarter in order to accommodate both Intel?s current and new Pentium 4 processors, which will be running at clock speeds over 3GHz.
Requiring 70W power supplies, the new P4 processor is incompatible with present motherboards, which only support the 60W standard, board manufacturers said. For the technology update, companies need to change the on-board PWN (pulse width modulation) controller IC design from three-phase mode to four-phase. In addition, to pack in an increased number of components, board makers have to rearrange the circuit layouts as well.

 

[LostHiWay]

Looks like another way for Intel to make more money. People have been able to overclock current P4's over 3ghz with no problems with power.

 

[ToBeMe]

You're not "getting it" people....................3Ghz is NOT the reason for the boost..................Hyperthreading and other enhancements are.................. Also, this will not be limited to just Intel...........AMD will also require it for the Hammer............

 

[CloudsShinji]

Originally posted by: ToBeMe
Also, this will not be limited to just Intel...........AMD will also require it for the Hammer............

That's the thing, I was enjoying telling my extremely pro-AMD roommate that the P4 mobo I just bought would work for Prescott, while he'd have to get a new one for Hammer.

 

[sumrtym]

Sooooooo...I'm a bit slow in understanding here. Is this just a change to the mobo, or does the power supply itself have to be changed? Just bought a 430 W TruePower from Antec a month ago for a computer I'm building later in the year and wanted to put the new chip in it......

 

[mechBgon]

The new power circuitry apparently answers an increasing need for amperage. They're looking to boost the available CPU amperage from 60A to 70A, among other things. This makes sense, since wattage = amperage x voltage, and the voltage has dropped from Williamette to Northwood. Williamette maxed around 100W peak draw, which is a little under 1.75V x 60A. For Northwood to draw 100W, it will need to draw 1.5V x 70A. If Prescot uses 1.2 volts, it will need to draw 83A if it maxes out at 100W.

For this reason, I wouldn't count on Prescot running in today's boards, because if you reverse the equation and consider max wattage on a 60-amp board, it's only 72W at true max, which is the heat output of today's Northwood 1.8A. Reference sandpile.org for a listing of present-day CPUs' max outputs if you're curious.

sumrtym, I think you made a good choice. I am getting a case that comes with the same PSU. I could have bought the TruePower 330W and it would have been fine for my present computers, but I decided to get the 430W because I see this trend towards higher and higher power demands, and someday I hope to have a nice Sledgehammer-powered workstation, or maybe a dual-Clawhammer...

 

[sumrtym]

All right, I'll buy that one. I couldn't see why the PSU would change, just the mobo. I can live with that one no problem.

mechBgon: Yep, that's why I went that root. Picked up the Antec 1080B myself on that Staples deal a while back. Got it with the PSU for $99 and change shipped to my door. ;-) I figured THAT at least wouldn't change between now and November/December. Really looking at adding that 3.06 to the system provided Asus has a good mobo at that time with IEEE 1394, USB 2.0, Serial ATA, ethernet, and RDRAM (unless DDR is starting to kick it by that time). So far I've just purchased the case/PSU, speakers (VideoLogic Digitheatre DTS), copy of Win XP Pro, and monitor (Sony GDM-FW900 24" 16:10 aspect ratio). Trying to get by with top-notch components at lower prices. Purchased everything so far on sale ($99, $334, $49, and ~$1550, respectively). I know....the monitor price is still high, but after using it for the last few weeks, I can't imagine using anything else. Picked it up from Dell with a 10% coupon and 5% on top of that (<15% off). If one thing tends to stay the same, it's the monitor. Especially when you have a 72" x 30" oak desk to put it on.

Figure I'm pretty much on hold for every other component till I'm ready to build. Awaiting the AIW built on the 9700 chip.

 

[MIGhunter]

So how long do you think it will be before there is a motherboard that will support the 2.8 and have nice features like 8x AGP and 1066 RAMBUS memory.

I see on AT that the review of the ATI Radeon 9700 used an Intel MB with only a 4x AGP slot. Would anything be different if they used an 8x AGP slot?

 

[Dug]

I don't see what the big deal is. By the time "most of us" can afford the top end cpu's, or are willing to pay for an upgrade in a cpu, we usually get a new motherboard anyway. A lot of people switched from the 1st 845 chipset to the new g/e version right away. And when dual ddr boards hit I know a lot of people will jump on those too.

The same thing is with ram. Look how many people have jumped from 2100 to 2700, 3000, and 3200. The "I plan on buying this for the long haul" sounds great but then along comes 8x AGP, Serial ATA, Firewire2, USB2, Megabandwidth buses, and some other superwammy gizmo that everyone needs and you upgrade your motherboard anyway.

 

[Xtasy]

Originally posted by: ToBeMe
WOW.......what a misleading thread title............

The 2.8 will work fine on all current boards unlike what the creater of this thread seems to indicate. Also, 2.8 is hardly "tops" for the P4! There will be no socket changes as Intel indicated, what WILL change is requirments due to the addition of Hyperthreading and SSE3 among a few other enhancements. Everyone/anyone whom did any research into hyperthreading and advanced chips knew future boards & P/S's would require the change. AMD will also neccessitate the change soon as well. Anyone whom thinks they would/could be able to advance chips without enhancing other hardware needs to do a bit more research into it..........as for the AMD's being able to run the faster FSB when it finally gets implemented, of course they will just as the P4 boards are capable of running the 400 & 533 chips. Barton will be the end for those boards though as "hammer" will require a new socket, new P/S's and new boards. AMD has already also indicated that the now being developed "K9" chips will neccessitate another socket change while Intel will stay with S478 through Prescott and possibly beyond.

The real question is if the 3ghz pentium 4 going to have hyperthreading, sse3, .09micron etc... If it isn't, then intel is trying to sham us as i have seen 3.8 ghz northwoods on extreme cooling.

 

[mechBgon]

This may be worth checking out: MSI 648E Max: The First Mainboard to Support Pentium 4 3.06GHz and Above

MSI has announced their new SiS648 based mainboard for Pentium 4 processors. The company makes stress that MSI 648E Max is the first mainboard on the market that officially supports the up and coming Pentium 4 3.06GHz CPUs with HyperThreading technology.

We now can state that SiS648 supports HyperThreading Technology. Unfortunately, those, who have managed to purchase another mainboard powered by SiS648 will in doubt be able to use their devices with the new Pentium 4 processors as the latter may be incompatible with them (see this news-story for details).

Sounds like a good idea to do one's homework on this, so you know your upgrade options later.

 

[Socio]

That's the thing, I was enjoying telling my extremely pro-AMD roommate that the P4 mobo I just bought would work for Prescott, while he'd have to get a new one for Hammer.

Unless I read it wrong in AnandTech's artice on the Prescott, the Prescott will be bigger than a P4 which would mean a different board.

Also if the newer P4's 3GHz's and the Prescotts will have hyper threading does that mean they will also be dual procesor enabled like the Xeon's?