PM965 (800fsb) chipset and a 1066 MHz fsb cpu...

Ok, take a look at this and tell me what you think...

Mobile Intel® PM965 Express Chipset

Scroll to the "Valid Processor Combinations" and make sure you take a good look. It lists the 667fsb, 800fsb, and you'll notice all the 1066MHz fsb processors are also listed as compatable. This seems to fly in the face of conventional wisdom and it may mean there are more compatable CPU's for the 6831/6860 (and other non-gateway) crowd.

Thoughts and discussion please.

 

so it states the t9400 and the t9600 will fit and work, however we may be more than safe to assume they will downclock to 1.9ghz and 2.1ghz... so whats the use ?

i think we've been through this one before.

 

Info showed on Ark.Intel is, well, weird.

I wonder what the signifies.

Anyway, you'll also notice the T7600/T7400/T7200, which are totally incompatible with the PM965 chipset.
(Socket M vs Socket P)

 

from the name of the gif it means false

 

I know that. But what does SIPP - False mean.

 

Valid configuration means that the processors are compatible and will run at the speeds they were designed to -not downclocked. The whole point of this thread is to point out that this downclock assumption is false.

Intel® SIPP defined

Intel SIPP was designed to help address the need for hardware platforms that support a stable image. As IT managers deploy end-user systems in the enterprise, unexpected changes to a previously qualified platform can force hardware requalifications and software image revisions. This adds complexity in the client environment and increases hardware support and image management costs.

http://www.intel.com/business/bss/products/client/stableplatform/components.htm

 

I already tried putting a x9100 in a 6860 and it did not work. So, NO, THE 800MHZ BOARD IS NOT COMPATIBLE WITH THE 1066 CPU. PERIOD!

 

I'm going to disagree.

According to this the x9100 is only compatable with the GL960 and PM45 chipsets, not the PM965. The compatability is Montevina platform only.

According to this and this the T9600 (and T9400) are compatable with the GM45 and PM965 chipsets. The compatability is Montevina and Santa Rosa Platforms.

So it looks like you tried the wrong 1066fsb CPU. Did you try one listed as compatable? Anyone else?

 

But Andy also pointed out that there are Socket M processors listed as compatible.... which, obviously, isn't going to work in a Socket P motherboard. Or is that wrong?

 

Socket M is not pin-compatible with Socket P.

So, the T9600 (and T9400) are compatible with the GM45 and PM965 chipsets. And not with the PM45 chipset ?

GL960 --> Santa Rosa, not Montevina

 

right, so magically they will run at a higher multiplier to accommodate for the lower fsb....some people might go for this...

 

its magic! burn the witch!

the santa rosa chipset does not have the capability to run at 1066FSB, so i dont see this really working unless the multpliers and raised and the FSB lowered.

sure the pin layout maybe be the same or whatever, that doesnt rele change anything though

 

these options are for custom built systems so socket isn't a factor.

What is interesting is the pairing of the chipset with the processor. Is this support built into the chipset or do you think it's because of the fact these are for one-off systems?

My thoughts are I don't see how cost effective it would be to produce a 1,000 one off chipsets to run a T9400 instead of just using the PM45. So has anyone tried one of these two cpus?

As an example: my Dell B120 has the 910GML chipset which has a 400mhz FSB. Pinmodded the system a still runs at 400mhz but the processor runs 533mhz FSB, which it's not supposed to be able to do.

 

i guess that if you had a bios allowing o/c you could use these and get to the rated freq. just as my desktop's GA-965P-S3 can support 1066mhz cpus (some of them) with a proper bios, as the 6860 has none of this, this is nothing but farting in the wind (which is cool by me).

or not.

 

as long as your on lower ground and farting in the wind your good!

and yes roy is right, too bad we dont have those options though.

 

I was searching the internet for future CPU upgrades for my Compal FL92 (PM965 chipset)... and I found this nice thread.
I must say there's quite a possibility that PM965 supports 1066 FSB. Why? Because I have 8Gb RAM installed, recognized and working 100% in my FL92 for sometime now. I believe this is no newsflash but still this chipset only supports 4Gb maximum RAM according to Intel and some folks that just like to say "no it doesn't" because it is in some white paper... or maybe just because.
My point is: keep on farting! And don't forget warn everybody when someone smells 1066Mhz FSB in a PM965.

 

Well when intel (the creators) and our own programs like everest tell us the same, why sweemingly waste money on an upgrade that probably won't work. Its cool that it works on your system though. I would love to have 8 gigs, maybe.in a couple months I will try

 

Apparently the Acer 5930G-733G32MN has 1066Mhz FSB CPU with the PM965 chipset.
I wonder if the PM965 is a little beast that run out of control from Intel's lab... running free out there... just taking anything that comes in the way: 8Gb RAM? Sure! Hell, and also throw in a 1066Mhz CPU just for the kick of it!
I guess when Intel says "support" maybe they mean "(please)support(us and buy our new chipsets)".
But the question remains: did someone just farted?

 

With stock voltage the PM965 Northbridge can run @1066FSB stable... so...

 

So...

1. Spiderman shows us a list saying T9600 and T9400 (1066Mhz) are compatible with PM965.
2. Angry cow says, and I quote: "800MHZ BOARD IS NOT COMPATIBLE WITH THE 1066 CPU. PERIOD!"
3. Acer is selling a laptop with P7350 (1066Mhz) and PM965.
4. Sager NP5793, so they say, can be configured with X9000 or x9100 (both 1066Mhz) and the PM965 chipset.
5. Finally (and this one is a really stupid example) Hypersonic Aviator EQ7 Q6600 is a laptop with Intel Core 2 Quad Q6600 8MB Cache 1066Mhz FSB... and Intel PM965! Go hypersonic aviator!

So, it's all about stock voltage?
I really have no idea... but I'm betting someone just ate beans and cabbages.

 

Don't forget it was already pointed out that the list Warlord linked to also lists a few CPU's from a different socket.... which WILL NOT work, no question! So I wouldn't readily jump to the defense of that one list...

So? Seemed pretty obvious to most... Sorry we're not all jumping on the "let's potentially waste a bunch of money" bandwagon.

I don't know about the Acer, haven't seen it... can you post a link so we can see if it actually is a PM965 chipset?

I know for sure the X9000 is an 800Mhz chip.... so, no there. Also, where are you seeing Sager says their NP5793 can be configured with those chips? Only one I see on the Sager website is that the 5793 is the older version that they fitted with Blu-Ray and are selling on sale... with only T8100 and T9300 options for CPU. The new version, NP5796, has the option for an X9100, which also has a PM45 chipset.... and also no X9000... where are you getting this info?

Umm.... it is a stupid example, and I think you may have lost almost all your credibility with this one... http://www.hypersonic-pc.com/aviator-notebooks/aviator-eq7-features.html Because no! Not PM965! P965! It takes a desktop CPU (which the Q6600 is... whens the last time you stuck one of those big huge desktop CPU's in your Compal? Please don't try.... it won't even maybe fit)

Yes, Kaltmod overclocked his laptop to 1066 FSB.... what about us that are not able to overclock? Please notice that kaltmod is still using an 800Mhz CPU that is known to work in a PM965....

 

The examples I gave are just what you can find for sale - I don't have nothing to do with it, blame the sellers. Apparently I can't post links so:
- The Acer you should look for is the Aspire 5930G-733G32MN.
- Search powernotebooks.com for Sager NP5793
- And yes the "Hypersonic Aviator" is stupid example, I actually pointed that, feel free to quote me. I found canadacomputers.com are selling it with the Chipset PM965... so I just couldn't resist the... "Hypersonic Aviator"...

Anyway, I agree there's no point arguing specifically about overclocking 800FSB to 1066. What is important is that if you replace a 667Mhz FSB CPU with a 800Mhz FSB CPU doesn't the system recognize the new FSB? Then I'm just guessing that the same goes to 1066Mhz.
Now we know that the PM965 does support 1066Mhz FSB so... if it doesn't work don't blame the chipset, blame your stinking BIOS - that's where the smell comes from.

What credibility...?

 

And I was pointing out why most of your examples didn't work and shouldn't have been used.....

 

It was my understanding that 1066 are compatible with PM965 santa rose, but the chipset simply downclocks them to 800FSB. you still get the 3.06GHz that comes with the x9100 processor even if it's downclocked to 800FSB, which won't at all give the same performance as 1066FSB and 3.06GHz, but it's much better than an 800 front side bus processor at 2.2Ghz. That's why these laptops are coming with these 1066 processors. That, and because most people don't even know that their FSB is being downclocked. Is it compatible? Yes. But are you being cheated? Yes.

 

That doesn't make sense though, Jakamo... to attain the speed of a processor it's a simple calculation, FSB x multiplier. Every CPU has a set multiplier, except the Extreme CPU's, where you can set a higher multi.

But take my CPU for example. A T9300 has a FSB of 800 Mhz. These Intel CPU's are "quad-pumped", so the actual FSB is 200 Mhz, or one quarter of the claimed FSB (I may not be using precise wording, but bear with me). I just checked Everest, and this CPU has a multiplier of 12.5x, SO, 12.5 times 200 Mhz = 2500 Mhz. Great, just what I bought.

Now if you take a CPU and don't run it at it's intended FSB, guess what happens? You buy a CPU with a 9x multiplier, with a FSB of 1066 Mhz (or 266 Mhz actual), you should get about a 2.4Ghz CPU. Now, if you could actually do what you claim, and just have the CPU downclocked to 800 Mhz FSB... well guess what, you're CPU doesn't raise it's multiplier to adjust, CPU's have locked multipliers, so instead of a 2.4Ghz CPU, you would get a 1.8 Ghz CPU... That's why they are not compatible.

 

You're confused. There's no way you can have a CPU with a native 1066mhz FSB downclock the FSB to 800 and still run at 3.06GHz. It would run at ~2.29GHz. The only way it could still run at 3.06 was if the multiplier got upped... which I'm telling you for a fact that it's not.

 

Ok, I tried putting a P9500 on the 6860 and it didn't wotk either.

 

the p9500 isn't on the list.
anyway this thread is becoming repetitive.

 

But what kind of notebook is the 6860 anyway? Is it Santa Rosa Refresh? If it isn't then you can stop trying.

The PM965 (Santa Rosa) supports 800Mhz FSB and 667Mhz RAM.
The PM965 (Santa Rosa Refresh) supports 1066Mhz FSB and 800Mhz RAM. I believe it started shipping March 2008.

Conclusion: the PM965 supports 1066Mhz FSB but the PM965 doesn't. Beautiful isn't it?

 

The PM 45 (Montevina) supports 1066Mhz FSB and 800Mhz RAM, not PM965. Alle PM965 are the same, only with 800Mhz FSB and 667Mhz RAM.

 

Where exactly are you getting this information??
http://en.wikipedia.org/wiki/Santa_Rosa_platform#Santa_Rosa_platform_.282007.29

Santa Rosa Refresh only brought support for Penryn processors... no mention of 1066Mhz FSB or 8 gigs. If you got 8 gigs in yours, great, there is hope. But you should really find some actual links instead of just saying things like it's fact.

 

Its all about the Multiplier.

But:
One: the BIOS would need to be programmed to support the CPU's, doubtful - why would Gateway ad support for part combinations they would never ship?

Two: the BIOS would need to support non-standard multipliers. This is essentially overclocking support. Probably not going to happen as upward multipliers have been locked in Intel CPUs for ages.

Since multipliers are locked, except downward (for speedstep) I think we can safely lock this thread.

If you disagree, buy a T9400 or T9600 and post back here. Otherwise let the thread die.

 

+1 for that

solon why not go to the acer sub thread ?

 

you guys seem to know more about it than I do, I must have been misinformed. just to clarify on one part though, can we define "compatible"? Are we talking incompatible is cannot be used at all or are we talking incompatible is can be used but not to its true potential?

 

I do not know if it's compatible as in can be used, but I am speaking in that it cannot be used to it's full potential.

 

Jakamo5: Buy it and find out. Really what else is there left to do? Its a split vote right now and there is only one way to find out.

I am not going to risk my money.

 

We don't have to buy it and find out... Here's what there is left to do instead: look at reviews of the laptops that are offering 1066 processors on santa rosa chipsets (post #20 in this thread) or contact people that own them and have them check. Or talk to tech support at intel. Etc. Theres more than one way to find out, and honestly risking money is not the answer, for me at least. I'm just posting to see if anyone has found out YET, but thanks for telling me to buy it and then posting that you're not risking your money lol, I'm glad you give advice to others that you wouldn't take yourself , but no thanks.

 

My friends, I've been working all day on this! Check it out:

1. You have a Santa Rosa Refresh notebook (based on the P965 chipset)
- if the system BIOS wasn't sodomized by the manufacture, you can upgrade to a 1066Mhz FSB CPU, run memory @800Mhz and install 8Gb RAM. Yeah!

2. You don't have a Santa Rosa Refresh notebook
- try pressing F5.

 

Solon, WHERE are you getting this information???? Without any bit of proof your words mean absolutely nothing!

Your one link shows the refresh meant a fsb increase of cpu's from 667 to 800, and the differently named cpu's. That's it. Unless you get some actual links and proof, please stop posting this FUD.

 

ok.. why not just read the intel tech sheet? the same place that motivated me to drop a T7500 in a Montevina platform 4 months ago. And, it worked..because the Chipset of Montevina is backwards compatable. Here ya go.. and then on the " 1.1.1 Processor support" link.. click it.

Notice this chipset only supports a 800MHz and 667MHz FSB..and it details the FSB pumping..

http://www.intel.com/Assets/PDF/datasheet/316273.pdf

Also, the Santa Rosa refresh was just 45nm Penryn based CPUs.. not Centrino 2 CPUs.. and by the way, the p7350 is not a Centrino 2 CPU. The only 1066MHz FSB CPUs that work in the PM965, are ones that are not considered Centrino 2. Hence, the Toshiba x305-q701 was not able to be advertised as Centrino 2..although it was using the pm945 mobo. But, the CPU wasnt(p7350).

..or Im just talkin crap and the Intel datasheet covers my @$$

 

i've been offered a best offer deal on ebay for one of these and just relized the fsb was at 1066mghz so i'm waiting for a reply from the seller to see if i can actually run this.... CPU's are harder to get support then say getting 8gbs of ram detected in the laptop... i got a nice deal for one of these mentovinas cpus but hoping it will work on my p-6831fx i'll let you guys know what the seller says

 

How would he know unless he's tried it in the same laptop that you own?

 

he'll probably google it and will end up reading this silly thread.

 

Then we must welcome him!
Hello Mr. Seller! You've come to the right place!
The CPU you're trying to sell won't work because the p-6831fx probably comes with the GM965 chipset - not PM965 but GM965. I'm afraid that just one letter is enough to ruin you a deal - who told you to work in the picky tech business, anyway?
Nevertheless, you still have a clear chance to ripoff our friend here because nobody will read this. Not even you.
All the best! And don't forget to tell us if you sold it or not!

 

umm..I havent been around in a hot second. I suppose someone finally read the intel spec sheet? redfirekla, obviously didn't.

 

Ah yes, the Intel spec sheet. Those guys work hard... and already change it since the first post.
But who cares? I'm taking bets here, check out the odds:
- Mr. Seller says CPU no go 1/3
- Mr. Seller doesn't care and sells 1/7
- Redfirekla gets CPU and works 1/3
- Redfirekla gets CPU and doesn't work 1/7
- Intel changes specs sheet again 1/1
Easy money everyone!

 

I'll do a parlay.. Lemme take $50 spread across seller doesnt care and sells, and red gets cpu and doesnt work. You gotta pay me $600 if I am right on both.. Ante up foo.

 

Huh? What are you talking about?? You're starting to freak me out....

 

uhm.. GM is integrated grafix..right?

 

can we stop this nonsense ?