Thinking of buying Quad Core for p7805u...

Hello everyone, I was thinking of upgrading my non OC'able CPU for a Quad Core. If I can OC the Quad Core or not is not my main concern, but I would like to know my options in making a decision in what to buy. If it's OC'able and I spend a little more its ok, if it's not OC'able I can live with the normal Quad speed aniway What model would you suggest? I want to know if I will need a different BIOS from my stock BIOS to make the Quad Core work, and what is involved in installing a new CPU, as I have never done so on a Laptop. Will I also need a more powerful power supply? Everyone is welcome to post their knowledge on the matter.

 

Last I heard the heatsink doesn't support quad cores, nor does the BIOS.

 

Plus, replacing a CPU isn't that trivial, as you will need to clean the old thermal paste and apply new paste.

 

Oh boy, sounds pretty technical. Is this something I should have a professional do if I even decided to get a T9600 dual core?

 

According to the recent find, the heat sink should and the bios should be 9c.17 it has not been verified to work in the 7805u as of yet.

 

For sure the BOIS doesnt support quad cores. We dont actually know if the heat sink needs to be changed. Being that there isnt very many quad core programs I would go with a dual core.

 

if i would have known that 9.17.00 was so sacred, i'd have dumped it before i sent out my RMA

 

Well, there was a picture from the top of the new FX (with quad) and it heat sink looks exactly the same from that angle.

And for our CPU heat sinks, the copper is a fair bit larger then the actual surface that touches the CPU, so I can't imagine it not working.

(Reasoning comes from the fact that the Copper need to touch the CPU to really take heat from it, and the box'o'copper that touches ours is about twice the size of the middle of the CPU)

 

The 7808 is the quad core. Here they are saying you can use the heat sink across a bunch of FXs so its down to a waiting game on the BIOS.

http://www.laptoprepairco.com/itemdetails/itemdetails.asp?ref=458&category=misc

 

Assuming they wired all the pins in the non quad laptops to support a quad. Despite the fact that they're all Socket P the quads are actually socket P*. I posted at some point a link to the intel tech sheets which have pinouts for both, including a list of the added pins (most were NC, no connection on regular P).

 

Is it possible that the q9000 w/ 6mb cache (vs 12mb in the other quads) is regular socket P and therefore works with the .17 bios?

If this is so, then we've all been wasting our time.

The current FX series is a technological dead end as far as quad (w/ the exception of q9000) core upgrades go---

 

Hi,
The P7802 is the one from Japan the current sellers of the q9100 and qx9300 say can be used as an upgrade. The p7802 is a q9000 as the original CPU so the p7808-u should be upgradeable as well. I can't make any inheritable statement for the other P78xx FX series as this is yet unproven and to date only disappointments have yet to be experienced.

This is not to say the q9000 may have lower specs for both the cpu and socket that make it a possible replacement for our older FX series systems. This as of yet has to be proven as well............

 

UGH, not this again! Hands down, as of right now, it just isn't possible. Gateway really isn't budging with the matter either, and who could blame them? If everyone went out, bought a 7811 and an ES quad core, it'd cost about 500 dollars less than their 7808 model, making it practically useless with it's weak resolution.

 

Agreed, Gateway won't budge for quite a while if ever. The topic won't just go away untill not only it is proven one way or another but also documented proof. IE a needed motherboard revision or the like. To stop asking the question though is to stop seeking the answer.

Even without quad core support I would still like to have the 9c.17.00 bios. When the price comes down a bit I can easilly see the t9900 or equivelant p9xxx making it in here to future proof the system............

 

I agree w/ you- which is why I will be selling the 7805u as soon as the Clevo M860ETU I ordered arrives-

I respect GW's business decision(they do have to make money), but at the same time, it is time for the 7805u to go-

 

All quads should use the same socket, there weren't any major power pinout changes or the like, it was mostly monitoring and feedback for the extra die pair of cores. Temp sensors and things like that which aren't present in a standard P for only one die. Hopefully Gateway built all their boards the same, but it's quite possible they changed at some point in production, but until we get a quad core BIOS from the 7808 to check no one can really be certain anyways, so far no one has had luck but I don't think anyone has proven unequivocally that the BIOS's so far have truly been quad core enabled (though some supposedly were)

 

.17 is the BIOS for the 7808. Pmassey has .17 in his 7805u and the q9100 he put in didn't work. Heatsink is the same.

It is possible that 7805's made after the 7808u came out may work-

Or the current bios was designed to boot with the q9000 but not anything above it-

Either way, that leaves the rest of the earlier 78xx series dead in the water-

 

Interesting, I wouldn't think they'd lock out specific models, but you never can tell either. I think I'm going to just stick with a high clocked/6mb l2 dual for mine whenever I get the urge to upgrade.

 

I honestly don't think the 7805 has to go. Considering its the same as the 7801. But having a quad core isnt really needed atm, and in a laptop no less. I just think its a great thing being able to play all current games on high on a laptop, not to mention I have never really needed more processor speed, and I sometimes run 2 games while streaming online radio while hooked up to an external monitor + more. Sure it would be nice to have a quad core, but honestly, who needs that much power in a laptop?

 

We have people on eBay (I understand it's not the most reliable source) saying that the Retail Q9100s are working on the 78xx series laptops with 9c.17 bios.

 

Actually pMassey now thinks the reason his chip didn't work was because it was either broken or not a retail stepping.

Whether or not Quads will work in the 78 laptops with .17 is still completely up in the air.

All we know right now is that the heatsinks and motherboards apparently haven't changed at all.

 

It's also coming from the same people who will not accept returns--

 

He got his quad core? my understanding was something like this friday or so..............

 

No- we were talking about the first one- The non-QGMU version...

Let's hope he fares better with the QGMU version-

 

Ah...... Ok........ I am looking at some time this year upgrading to at least a T9900. If the quads fare out I'd go that route. For the interim I have a P9600 ES in here for primarilly the 6 meg cache. It makes a big difference in multitaskig on the desktop applications.

I knew the P9600 was not my end all upgrade but a great inbetween investment and has well proven itself. The trueth is I do not even need to upgrade but am interested in being sure from that point I will be able to get four years from the system and topping it out at the time should be insurance enough. Now a strong quad core would be a better insurance policy though.............

 

The T9600 is still the best value - $209 for 2.8ghz--

I think the 25w vs 35w difference has been blown way out of proportion.

 

Might be a bigger issue on the 7811 due to the TSZ0 temp issues they have, everyone I've seen with a 7805 with the T series 35W hasn't had an issue. Not sure I'd want to go bigger than 35W myself, and I think I'll hold out for a top end P series for the hair of extra battery life.

 

I went with the P series at first as I thought battery life would be important, but to me it is not. Also our 120w bricks are really over stressed with the P series and the X series for max cpu scared me. The T9900 being 35w is less scary. That goes to the Quad cores, 44w may be going over what I am comfortable with but I'll just have to use the 180w as my mobile brick too...........

 

Are you referring to this?

http://forum.notebookreview.com/showthread.php?p=4546396

 

Yepper............... our P8400's have been shown at full load to draw about a total of 105w from our bricks constant, The measuing device was a simple one someone else used and doesn't measure peaks etc just an average. This makes our bricks just barely cutting it, as can also be seen by their frequent failures and high heat.

Adding a possible 10w to 19w possible additional draw is just not doable in my mind. It is just asking too much of the brick...........

 

Went with the T9800, very happy, low temps, and no issues. 7805u

 

He was refering to the first one I got, a QX9100. I bought another Q9100(ES) QGMU buuuut. same results.. Whatever, can you say eBay? Quad core for sale. Maybe as I said in another thread, it'll only work wit the Q9000 which seems weird...........

 

Not weird-- economics.

 

No quad support for the 780X series---

see my post here:

http://forum.notebookreview.com/showthread.php?t=303626&page=117