Best CPU for my 6831 fx

Hey all,

Ok so my lappy has one week left on the warranty and i want to get the best cpu i can get.

I know many of you guys have done this and want your help, I'm in Canada if that makes a difference.

Many Thanks

Qfragger

 

i think it could take a x9000, t9300 is good if you care about performance/price.

 

Cheers for the reply,

Do you know of a good place to buy the cpu from?

 

I just got a T9300 from eBay, and it is pretty nice with the 6mb cache and all. I think there are 2 versions of the T9400 as I've seen pics of an 800mhz and a 1066mhz one. I got an Engineering Sample processor.. if you search in titles and descriptions for T9300 QADX you will find it, and the seller has more of different speeds. So far I've not found a downside to the ES processor, and CPU-Z fully recognizes it as a T9300.

EDIT: Oh.. I got the ES-QADX because for a T9300 it was hella cheap.

 

so is the t9300 priced around the $350 range? might be alittle to much for me at the moment.

 

I got mine for $170

 

yes there are like 3 or 4 ebay sellers who sell their t9300 or x7800s for uber uber low prices, you just gotta search for em

 

Sounds nice, where did you get the cpu from? please tell. I've just looked in Canada and it's $416 - $460

 

Check my post a few up from that one.

 

http://cgi.ebay.com/Intel-Core-2-Du...temQQimsxZ20090221?IMSfp=TL090221191009r21230

Is that the cookie i want?

Cheers for your help

 

That's the one. Looks like he's out of stock right now, keep checking, they seem to go fast.

 

You could always get an X7800 and overclock to 2.8-3.0Ghz like I did.

Ebay link

 

So the x7800 is an extreme cpu, so is this better than the t9300? It's the same price on ebay.

 

I'd say they are pretty much equal.

 

I'd say the main difference is going to be battery life. However, I imagine that the X7800 overclocked to 3.0Ghz should be able to beat the T9300 in just about anything if your main concern is performance.

 

So before i go out and buy myself a X7800 just wanna make sure i can put it in my p-6831 FX.

Thanks for all your help.

 

Yes, it is fully compatible with the 6831.

 

Just bought X7800 on ebay for 128$+15$ shipping after live cashback. Its the engineering sample. I just had to bite when I saw the 25% live cashback promotion.

 

thats one sweet price for a x7800.

 

Do you guys notice the temps running high on the x7800?

 

Read this thread
http://forum.notebookreview.com/showthread.php?t=282217&highlight=engineering

I've read everything and I think I'm prepared to install once the cpu and AS5 arrives. I'm just curious. What are your temps and did you undervolt.

 

does the X9000 work for the P-6831FX????

would that not be the best?

 

can you show me how you got the cash back?

I can't seem to find it. it's for the X7800 chip.

 

Cashback is down to 8% now. Check this thread for details. http://forums.slickdeals.net/showthread.php?sduid=0&t=1211713

I got the X7800 from this guy. Its an ES chip as I mentioned before. http://cgi.ebay.com/ws/eBayISAPI.dl...rms=algo=SI&its=I&itu=UCI&otn=15&po=LVI&ps=54

 

So are the ES chips just as good as the retail version? Some guy in this post had issues with heat using an ES chip.

Cheers

 

I haven't had any problems with my ES T9300, mine is a QADX.

 

thanks Sinclair-ZX81

I have just had an e-mail from the same guy you bought from. He said he is selling an T9300 ES QADX. Same as yours then, so whats with the QADX?

Thanks matey

 

QADX is the stepping code I guess.. like SLAYY. The SL processors are the retail and OEM and the Q are the Engeneering Samples. So far, mine is fine running FEAR 2 and EverQuest and web surfing.. no glitches yet. He said the QADX is very stable and the same as the OEM run of the T9300. The price was right anyway.

 

is the T9300 the best for the 6831FX? or the X7800 overclocked? will the X9000 fit?

 

Well the T9300 is a 2.5ghz proc 45nm at a 35w TDP. 6mb L2cache.
The X9000 is a 2.8ghz proc at 45nm, 45w TDP. and 6mb L2cache.

The X7800 is a 2.6ghz proc at 65nm, 44w TDP. 4mb of L2cache.
The X7900 is a 2.8ghz proc at 65nm, 44w TDP. 4mb of L2cache.

That being said... the X9000 is the best bet... but you're gonna pay 300 at least for that one. Also the X9000 will run slightly cooler per Mhz than the 65nm Processors.

I own an X7800 and clock it to 2.8ghz.. I just actually did some temp tests, so you're in luck.

X7800 @2.6ghz Orthos 69C core 0 , 71C core 1 ( 1 min, 45 sec )
X7800 @2.8ghz Orthos 73C core 0 , 75C core 1 ( 1 min, 45 sec )
X7800 @3.0ghz Orthos 78C core 0 , 80C core 1 ( 1 min, 45 sec )

So, temps are actually pretty good if you throw some good thermal grease on there ( right amount of course ).

Really the x7900 runs at 2.8ghz, and is cheaper than the x9000. So the X9000 has 2mb of L2cache on the X7900, but really you won't notice that in most of every day applications.. the clock speed > L2cache.

So my suggestion? Go with the X7900, it's cheaper, performs the same.. and the biggest... you can change the clock! That way you have more like... 3 processors instead of one ( 3 different clock speeds ) over the T9300.

 

I came to the conclusion that the T9300 was the best for me for price/power/heat. The 6mb and the new core I think put it a notch above the 7xxx series. The x9000 I'm sure is a bit better, but the T9300 is pretty sweet.

 

For sure Sinclair, they're all going to do their job splendidly. Very few games actually see much of an increase of FPS by raising CPU frequency. Albeit if you are past the Bottleneck , as long as your CPU is at least 2.2ghz+.
For example... ( I am getting really tired of this word ) "Crysis" sees no performance increase when I OC my CPU, hell when I had my 1.66ghz CPU the FPS was really not much different, sans stuttering and load times. Warhammer Online sees about 5-7 FPS per 200mhz I overclock, along with Everquest, most games with alot of global items/people in one place... that's a huge jump! I just always have to have the option to overclock, If I bought a CPU with locked multiplier, and put it in a laptop with a locked FSB... I'd go nuts! Now on a desktop, as long as you buy a Motherboard with an unlocked FSB, you're good, you can take any CPU and turn it into one that is $100 more. I want 3-4 CPUs in one package, I have a 2.6ghz , a 2.8ghz , and a 3.0ghz CPU whenever I want.. and I don't even have to change the thing from it's socket. Most likely, I will keep my X7800 even when I get a newer laptop. The FSB does help speed, the basic equation for FSB is just about the same as MHZ... so a 2.4ghz at 1066 FSB would match a 2.66ghz at 800 FSB. So I am keeping my X7800 for as long as that socket stays around! I love it so much.

 

I'm just about to buy either an x7800 or T9300 on ebay. The x7800 is $170 and the T9300 is $200, which is the best option for a P6831-fx? Is my lappy capable of controlling the heat in a X7800?

Cheers..

 

THANK YOU so much. Your post pretty much sum up what I'm going to buy.
If live.com cashback can hit 25%, I will get the X9000, but it is only at 8%, so I might be off with the X7800

You just need to undervolt it if you decide to overclock it.

And be sure to buy a notbook cooler. I bought the cooler master infinite on newegg for around 35$. good deal.

 

oh and brian, I have already ordered artic silver 5. when i get the chip, where exactly do i put the thermal compound? and how much?

 

What you're going to want to do is : Put a BB sized dab right in the middle, it should kinda of settle out to be as big as one of the smileys like this . Afterwards you're going to take either the card it came with, or maybe a credit card and just sort of spread it out to the edges. Don't worry if it's not perfect, the heatsink will take care of that for you, it will smush it all together like a peanut butter banana sammich. When you put the heatsink back on, give it a slight and careful twist one time each way to get it real stuck on there. Make sure you tighten each screw diagonally, dont do it like 1 2 3 4 , go 1 and 4 , and 2 and 3 as in like this
1-----------------------2






3-----------------------4

That way you dont chip the core or anything like that, and also you get a better uniform heat spread!

 

Qfragger, As long as you apply the thermal grease with a good brand ( I use Antec silver, and Rosewill silver, knockoffs of Arctic silver.. no one ever has it in stock ) your temps shouldn't be much worse than mine, but I have read a few guys reaching 84C at 3.0ghz and 75ish at 2.6ghz in these 6831 models. So as long as you're not going over 80C in anything at the stock clock, then you did ok. But the temps I posted are going to be as good as this laptop will do WITHOUT a cooler; expect a 5-8C drop there on each core.

 

Thanks mate,

I have just bought a T9300 and paid a little more for it.
Thanks for everyone who posted a reply on my post.

regards

 

Good buy, you will literally jump up and down ( just sit the laptop down first ) when you see the performance difference. Not only are you getting 700 mhz in clock speed, you're getting 133mhz more FSB! So your RAM link will run faster also. The heat should be around 60C load at the most, anymore and you might need to re-apply the grease. You should idle at around 30-35C.

Congrats! You wont be disapointed, the bottleneck is now gone.

 

the bolded part is false. your ram will NOT run any faster than 667mhz due to the chipset limitation. i have a T9300 as well, and my processor FSB runs at 800 mhz while my ram runs at 667mhz.

 

Ugh yes thank you for catching that... I usually back my posts up with facts and research! I was reading up on a post about the t9300, he had 800mhz RAM in a GM965 chipset, I forgot... 965 is 667mhz only! So if I would have thought about that one! The guy's 800mhz RAM is downclocked to 667mhz due to the chipset limitation, so pointless until he gets the p45m chipset in something else. BUT if for some odd reason he had a 667FSB processor and 800mhz RAM, then upgraded to the T9300...but is that even plausible? The chances of that would be so low..

 

i'm going the X7800 way

 

Let me know how you get on, would love to know. I bought an T9300 ES last night on ebay.

Cheers

 

I just bought my X7800 too.

will do

 

I'm just hoping for a quad core BIOS.

Though I keep hearing that the heatsink won't support it... I think I have an idea, but I don't know exactly.

I've seen a quad core at 45W, so at that temp I'd think that the heat would be on par with the extreme series of duo.

 

Congrats Juk! Welcome to the club man, you won't be disapointed that's one thing you can rest easy about.
BTW, did the guy specify wether it's an Engineering Sample or not? Make sure you boot up CPU-Z when you install the proc to check either way. If the proc is an ES it will show up on CPU-Z like this Bla bla core 2 extreme @2.6ghz (ES).
If not the (ES) wont show up at the end.

 

yes, he e-mailed me saying it is the ES version.

what's the difference?

 

ES samples are basically samples given out for free to customers and review sites/magazines. There are usually 2 types of ES: a prototype chip, very first ones made, usually dont have thermal control. The last batch of ES chips have thermal control. ES chips are fine, in the case of the X7800 the revision is the same. They're all E1 as far as I know.

 

I had an email too from the guy sciences_art is his name. He said mine was an ES QADX version, he also said it's the same as retail. He also said that ebay would stop him from selling a ES version of the cpu. thats whyhe doesn't state it on the description.

Mine was on a plane yesterday to Canada.

 

I just got mine yesterday from sciencesart. I'm waiting for AS5 to come in so I can install the chip. Weird packaging but hopefully it works flawlessly.