Looking to take the 940 to 4.0 24/7 on air, which mobo?

[carajean]

Like the post says, im switching over from intel ( spec in sig ) I was gonna go i7 but the dang DDR3 is way too much. So what I would like to do is take the 940 to 3.8ghz for 24/7 use at least! I would really like 4.0ghz 24/7 use on air. Right now I have the tuniq 120. I wont go water till a good cheap system can be had for $150.

Ok now the board that I need has to be a really good overclocker. The cheaper the better but as u can tell from my DFI LP UT P35 I can spend a bit extra.

Suggestions need really fast gonna make a purchase by Friday Jan. 9th or go to microcenter depending on the board you guys suggest.

[Russ_64]

To get the best from P II 940 you need either 790FX or 790GX chipset - depends on how you feel about integrated graphics .......

I went with DFI DK 790FXB-M2RSH which is actually cheaper than the 790FX Asus and Foxconn, some GX MB's are actually cheaper such as MSI, GB, etc.

[Particle]

It's too early to say what will be the "best", but for now I can tell you that four of the top five world record CPUZ validations were all on the Asus M4A79 Deluxe. I don't believe it has been released yet, so if you're looking for an immediate upgrade it won't do much for you. The DFI 790FXB-M2RS holds the number five spot. I'm not sure if that one is a new revision of the 790FX-M2RS or just a weird way that board identifies. People have had promising results on pretty much any board that worked well with Phenom though, so that means stuff like the ASUS M3A79-T (available now) and Foxconn A79A-S. In the end though, overclocking is a game of luck. With such a good cooler though, I'd be surprised if you can't hit your 3.8 goal.

[demonkevy666]

use the best cooler you can get a "amdican" mentioned that 5000 be use 1.352 volts on the stock cooler @ 3.0 and 1.344 on H.D.T cooler. o who's going to get a copper true for this puppy ? lol I'll be sticking with my sunbeam CCF.

although I've found it weird that my rosewill z5 ultra is doing better now O_o the heat sink is hotter then what core temps says lol. Temperature probe in the heat sink is reading like 39-41C and core temp is showing 33-35C it's on 9550. anyone got a clue on how that happening ?

sof also said ACC doesn't matter

[saveus222]

How about the Foxconn A79A-S.. that holds a coupla high overclocks.. i think i saw the Foxconn Destroyer going close to 3.9..

[RASTAVIPER]

Nomatter what mobo you get, if the CPU is banana, you will not be able to get such high clocks.

[BrowncoatGR]

I The DFI 790FXB-M2RS holds the number five spot. I'm not sure if that one is a new revision of the 790FX-M2RS or just a weird way that board identifies.

It's a revision of the board with SB750 instead of SB600

[Morais]

I think the best mobo at the moment is Asus M3A79-T Dlx....very stable board

[chew*]

I think If you ordered the cpu on line you are shooting craps, the only way to get a cherry cpu is to hand pick a under 100 batch cpu and even then you could end up with a mediocre cpu based on how well the actual batch came out as a whole.

Kind of like the old saying crap is still crap even if if you put on a silver platter.

As far as the asus board m3a79-t I have yet to see one person with a 940 perform uber clocks on it yet.......or put it under cold, I thinks its the only board I have not seen 5ghz screenies with yet.

[carajean206]

Well I could go to Microcenter and get the cpu they price match newegg. I wanted to get everything from microcenter because im such a "i have to have it now" type person.

[largon]

Nomatter what mobo you get, if the CPU is banana, you will not be able to get such high clocks.

=
[/thread]

If you find a 940BE that does 4G on air then the mobo is almost irrelevant.

[carajean]

It looks as if microcenter does not have a decent board in their store. If someone could check out their site and correct me I would appreciate it, because if so I could be trying out phenom2 as soon as saturday.

Best boards that I can find there:

http://microcenter.com/single_produc...uct_id=0277600

http://microcenter.com/single_produc...uct_id=0294809

http://microcenter.com/single_produc...uct_id=0294660

[carajean]

The more I look at the DFI 790FXB-M2RS the more I loves it ( yes it meant to spell it that way ). Since im giving my old setup to my parents for the small amount of $350 im gonna have to wait another 2 weeks unless I can come up with another $60 bucks on my end to get that DFI board which I loves.

[Oldguy932]

Don't buy anything but the cpu from microcenter. I spent half an hour getting them to pricematch my 940 yesterday because they don't know what they're doing.

[Halk]

I think If you ordered the cpu on line you are shooting craps, the only way to get a cherry cpu is to hand pick a under 100 batch cpu and even then you could end up with a mediocre cpu based on how well the actual batch came out as a whole.

Chew, could you go into a bit more detail on how this batch thing works, why this under 100 may be good etc?

[chew*]

Chew, could you go into a bit more detail on how this batch thing works, why this under 100 may be good etc?

Sure theres a large wafer, they make quite a few chips out of it lets toss a 1000 as a # of chips made. ( Not really sure how many they can squeeze out of a wafer atm )

I lifted this pic off particle for explanitory reasons, hope you don't mind particle.


So the bottom line last 5 digits are what we are looking at here.......Looks like particles came from batch 80000 and is 74 in that batch of 80000, that batch will go up to 81000. The higher the # the further you get away from the center of the wafer of silicon.........The center of the wafer houses most of the "Cherry" chips in a batch as the silicon at the center of the wafer is of the purest quality.

Now getting a chip in the first 80001 to 80100 increases your chances of getting a good chip but there is a catch. Batch 80000 could have been a poor batch to start with and batch 81000 might be better.........getting a low batch # just increases your chances of getting a higher yield chip in a batch even if the batch is poor at clocking to begin with.

I personally don't buy chips unless they are 01 - 50 and where i get my chips from they have plenty of chips to pick through ( distributors warehouse ), I've rarely gotten duds this way.

In 939 x2 I ended up with one that was under #50 from a poor batch and still did 3.0 under a mach 1 24/7 stable, The other chip I got was # 47 in a decent batch and did 3.0 under water and I later went on to take the x2 3800 WR at 3.5g under DI for a short period of time.......( I still have it and plan to take the current 3.7 WR down with LN2 )

Batch is not god and does not mean you will get the best chip in the world but it will ensure you getting a better piece of silicon out of the whole batch, try to think of it as playing blackjack against the casino versus any other game, You odds are higher with blackjack than any other card game at the casino

Last but not least particle nice chip being in under 100, have fun with it.

I could go further into what the other numbers meant back in the day but alot of things may have changed. I may make a new database for stepping/batch.......last time I was able to determine which chips did well under cold among other things.....this time I might be able to figure out something different but I think I will reserve that for AM3 as the 920/940 appear they will be short lived.

[carajean]

Don't buy anything but the cpu from microcenter. I spent half an hour getting them to pricematch my 940 yesterday because they don't know what they're doing.

Hey do u think you can get that 940 to 4.0ghz with ur board?

[chew*]

Hey do u think you can get that 940 to 4.0ghz with ur board?

Sure he can he's freezing the cpu......I don't think you should be as worried about a board as you should be more concerned about what cooling you will be using to attain your goal. I'm preety sure I will hit 4.5 no matter what board i use, I plan of freezing the cpu however buy a cheaper board , save some money and put it towards a nice used phase change for $200.....

[carajean]

OK can the phase change be used for 24/7 ??


Also I was thinking about just getting the Q9550. At the same time all my friends have Q6600s I want to be different but better! I want the PH2 to really blow theirs out the water. They all run theirs between 3.6 - 3.8ghz.

Also right now I have the Tuniq 120 which I will be keeping for a bit.

Hey where can I get a phase change for $200 quick google gave me nothing that cheap. More like $800+

[chew*]

Got to buy one used. $200-300 should be the going rate for a used mach 1 or mach 2. I picked up a pristine mach 1 for $200 IIRC 2 years ago. Should get you well over your buddies chips.

Yes it can be used 24/7 as long as you insulate it properly.

I have 2 mach 1's I'm selling one but only locally which is why its not listed in our forums, Don't feel like shipping it.

[Oldguy932]

My vapo cost me like $900 2 years ago, as expensive as the current build, but its the third system its been attached to. I actually thought about selling it and getting a triple cascade built, now that would be loads of fun to play with.

[chew*]

My vapo cost me like $900 2 years ago, as expensive as the current build, but its the third system its been attached to. I actually thought about selling it and getting a triple cascade built, now that would be loads of fun to play with.

MMMMMm cascades were great in they're hey day till LN2 became popular, not really a 24/7 thing, can be done but noisy and not cost efficient

[FlawleZ]

Sure theres a large wafer, they make quite a few chips out of it lets toss a 1000 as a # of chips made. ( Not really sure how many they can squeeze out of a wafer atm )

I lifted this pic off particle for explanitory reasons, hope you don't mind particle.


So the bottom line last 5 digits are what we are looking at here.......Looks like particles came from batch 80000 and is 74 in that batch of 80000, that batch will go up to 81000. The higher the # the further you get away from the center of the wafer of silicon.........The center of the wafer houses most of the "Cherry" chips in a batch as the silicon at the center of the wafer is of the purest quality.

Now getting a chip in the first 80001 to 80100 increases your chances of getting a good chip but there is a catch. Batch 80000 could have been a poor batch to start with and batch 81000 might be better.........getting a low batch # just increases your chances of getting a higher yield chip in a batch even if the batch is poor at clocking to begin with.

I personally don't buy chips unless they are 01 - 50 and where i get my chips from they have plenty of chips to pick through ( distributors warehouse ), I've rarely gotten duds this way.

In 939 x2 I ended up with one that was under #50 from a poor batch and still did 3.0 under a mach 1 24/7 stable, The other chip I got was # 47 in a decent batch and did 3.0 under water and I later went on to take the x2 3800 WR at 3.5g under DI for a short period of time.......( I still have it and plan to take the current 3.7 WR down with LN2 )

Batch is not god and does not mean you will get the best chip in the world but it will ensure you getting a better piece of silicon out of the whole batch, try to think of it as playing blackjack against the casino versus any other game, You odds are higher with blackjack than any other card game at the casino

Last but not least particle nice chip being in under 100, have fun with it.

I could go further into what the other numbers meant back in the day but alot of things may have changed. I may make a new database for stepping/batch.......last time I was able to determine which chips did well under cold among other things.....this time I might be able to figure out something different but I think I will reserve that for AM3 as the 920/940 appear they will be short lived.

Very interesting information chew. Maybe I'm in the minority here that didn't know about that, but thanks for posting!

[chew*]

Just wanted to add one more little tidbit, better silicon does not always equal out to higher oc's, sometimes it will be in the form of a stronger memory controller, or chip capable of higher HTT etc etc.....

[Lightman]

Just wanted to add one more little tidbit, better silicon does not always equal out to higher oc's, sometimes it will be in the form of a stronger memory controller, or chip capable of higher HTT etc etc.....

.... or lower power ...

BTW great batch guide!