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Anybody used AM3 CPU on AM2 board successfully ?

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January 6, 2011 11:36:16 AM

I'm trying to gather the people's experience who do it before.
So please note here everything about your operations!! (I know you may did somethings such as flashing bios or cmos and disabling cool&quiet to able to overclock or even reach to the CPU's true speed) and your result .
This will be very useful for me and others who wanna buy a AM3 CPU and spend a few time until they can upgrade whole PC.
(Do NOT say anything about this can't be!! because it is done before by many people)






ATHLON X2 4800+ ASUS M2N-E 2*1GB KINGSTON HyperX 800MHZ HD4850
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January 6, 2011 11:57:28 AM

Yes you can us AM3 Phenoms on your board with a bios update.
The ASUS website has the cpu support list and bios update instructions you will need.
http://support.asus.com/cpusupport/cpusupport.aspx?SLan...

I am running a PII 555 unlocked to a quad @3.6ghz on an AM2+ board with DDR2.
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January 6, 2011 11:59:59 AM

many of the AM3 cpus might require 130 watts, which might be more than many AM2 boards can handle....

Get the right board, check MB manufacturer's website for supported/approved cpus...

The cpu fitting into the socket is not all that's involved....; also the issues of DDR2/3 and integrated memory controllers if memory serves....

You can run an AM2 in AM3, but not vice versa....

If you strongly disagree, it is your money....
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January 6, 2011 12:10:01 PM

^Click on the link above then say you can't run an AM3 cpu in an AM2 board, I have been for a long time.

The AM3 PII's have an onboard DDR2 and DDR3 memory controller so its happy with either.

I strongly disagree with just about everything you have posted, you cannot run an AM2 cpu in an AM3 board either. :pt1cable: 
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January 6, 2011 12:20:43 PM

a few articles do suggest some AM2+ boards will support AM3 cpus..

I stand corrected.
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January 6, 2011 12:30:01 PM

Or some AM2 boards and just about all AM2+ boards even.
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January 6, 2011 12:34:45 PM

mdd1963 said:
many of the AM3 cpus might require 130 watts, which might be more than many AM2 boards can handle....

125W.

mdd1963 said:
Get the right board, check MB manufacturer's website for supported/approved cpus...


He has a board. And he mentioned what it is. Then someone linked him to the site you mention. And it supports all AM3 CPUs up to 125W.

mdd1963 said:
You can run an AM2 in AM3, but not vice versa....

Not this. But vice versa. Perhaps you are confusing it with the upcoming AM3+ where you can use AM3 in am3+ but not vice versa?

mdd1963 said:
also the issues of DDR2/3 and integrated memory controllers if memory serves....

Issues? What do you mean "issues"?
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January 6, 2011 5:16:14 PM

Thanks All
But I am looking for those who tried this before and i want their problems and everything they done.
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January 6, 2011 5:28:51 PM

mdd1963 said:
a few articles do suggest some AM2+ boards will support AM3 cpus..

I stand corrected.


NO!!
because in the same am2 socket ,there are phenom 9850 and 9950 with 125w power.it is the same power of even phenom2 X6 1100t !!!
However I found out something new from my board's page on the ASUS website:
Now I can use ddr2 1066!! IS this some kind of miracle? anyway what will happen if I use my 2*800mhz on slot 1&3 and 2*1066 on slot 2&4? Will IMC (Integrated Memory Controller) like it or not!!? Increase performance or decrease ?
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January 6, 2011 5:34:56 PM

Quote:
you don't get it man.
AM3 chips will not run on AM2 board, now there are cases of BIOS updates that make changes to allow AM3 chips
but I am yet to have verified that for myself.
AM2+ boards can run AM3 chips with DDR2 RAM, 1066MHz to be exact.
some AM2 boards can run first generation Phenom chips (Phenom x3 and x4) and they do not necessarily have to be AM2+ boards.
the resaon for that is the amount of VRAM that the particular motherboard has, 8mb of VRAM is the minimal amount for the first class Phenom chips
and stronger AM2 boards have this amount while weaker AM2 boards only have 4mb of VRAM and that's a hindrance.


I'm So sorry for you MAN. because of these links!!
You better have look around this forum!!
http://vip.asus.com/forum/view.aspx?id=2010082800481989...

And better check the cpu list from the MY board's page as i linked down!

http://ae.asus.com/product.aspx?P_ID=NFlvt10av3F7ayQ9&t...
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January 6, 2011 5:40:37 PM

enzo matrix said:
125W.



He has a board. And he mentioned what it is. Then someone linked him to the site you mention. And it supports all AM3 CPUs up to 125W.


Not this. But vice versa. Perhaps you are confusing it with the upcoming AM3+ where you can use AM3 in am3+ but not vice versa?


Issues? What do you mean "issues"?


I LOVE YOU Enzo!! and thanks for supporting me!!
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January 6, 2011 5:56:55 PM

Quote:
THAT'S AN AM2+ BOARD..!

so basically it can work but you have been saying AM2 this entire time.
Not AM2+..
(facepalm to you sir)

This was a AM2 board !!. I can picture my board's box if you don't believe me!!
This is the point . every am2 borad is an am2+ board now!! On that time there wasn't am2+ and now companies see that is no problem maker difference between am2 and am2+ !!
NOW it's calling " [ am2/am2+ ]"

every am2 cpu can work on am2+ and every am2+ cpu can work on am2 socket.
but it's not about am3 I know. but they made some bios upgrade that helps to work an am3 Cpu on am2/am2+ board.
but obviously an am2/am2+ CPU can't work on an am3 board because this cpu doesn't support ddr3 ram and the only memories that are supported by am3 borads is ddr3!
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January 6, 2011 6:01:57 PM

Quote:
Am2 pinouts 140
Am3 pinouts 138

How can a AM2 CPU work in a Am3 board?


He's not saying that he's saying an AM3 will work in his AM2 board.
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January 6, 2011 6:03:05 PM

even my boad's box says I can only use 800 mhz and I used to watch that note in Asus website.and now!! what happend? Today I am able to use 1066 rams. oh god thanks a lot. you just saved my a**. they were not taking about it untill ddr2 rams is almost out dated! and this is their trick !!
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January 6, 2011 6:10:07 PM

I though I covered it pretty well in the 1st post of this thread....aaaaaaaaaaah well. [:aford10:1]
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January 6, 2011 6:10:41 PM

I'm just saying maybe there will be a basic difference between am2/am2+ socket and board with am3 but this i not between am2 and am2+. they will do almost the same job.
this the asus's note:
Supports AMD Socket AM2+/AM2 for Phenom FX/Phenom/ Athlon 64 X2 / Athlon 64 FX / Athlon 64 / Sempron
The motherboard supports AMD socket AM2+/AM2 for Phenom FX/Phenom/Athlon 64/ Sempron/Athlon 64 X2/ Athlon 64 FX/ processors with 2MB / 1MB / 512KB L2 cache, which is based on 64-bit architecture.It features 2000 MT/s HyperTransport1.0 Bus, dual-channel un-buffered DDR2 1066 (AM2+) and DDR2 800 (AM2) memories support and AMD Cool ´n´ Quiet! Technology.

Intresting thing is on the CPU support list that they added almost all amd CPUs on that list!!
Maybe tomorrow they will say this board support hyper tranport2!!
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January 6, 2011 6:16:40 PM

beanoslim said:
Yes you can us AM3 Phenoms on your board with a bios update.
The ASUS website has the cpu support list and bios update instructions you will need.
http://support.asus.com/cpusupport/cpusupport.aspx?SLan...

I am running a PII 555 unlocked to a quad @3.6ghz on an AM2+ board with DDR2.


So what is your HT link Speed? and what happened to these new! core's L2 cash? are they unlocked too?
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January 6, 2011 6:17:48 PM

You asked about running an AM3 cpu on your board I said you could.

You asked about other peoples experience of doing so I told you about my setup.

Then the *** just went crazy, I don't understand what the issue is now, every time I search for your board it comes up as an AM2 board, the bios update says it supports PII's, why can't you run the memory at 800mhz and tighten the timings up, I run mine at 800mhz with tighter timing options and get better benches than running it 1066mhz.
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January 6, 2011 6:26:32 PM

I know!!
1066 was not on the page!! this added recently . and am2/am2+ too.
there is no fearing of confusing! I can eat one of those pills on your hand. but wich?
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January 6, 2011 6:36:25 PM

UUUUUUUUUUGH WATCHA GONNA DO??
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January 6, 2011 7:07:39 PM

Just Joking.
Anyway all of these notes are usefull. But you still don't get it. maybe one of you done it (use am3 cpu on am2/am2+ socket) easily and didn't have any problems. but I know there will be unbelievable problems like this:
http://vip.asus.com/forum/view.aspx?SLanguage=en-us&id=...
as you can see he was not able to do this with my board. but in that forum there are some people that they can were able and some had strange problems. so I'm still waiting to those people's experience that have some mistakes or bad luck and I'm wondering how they did solve it and waht happend.
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January 6, 2011 7:10:28 PM

Quote:
shhhhh it's OK..


I love you too!!
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January 6, 2011 8:19:47 PM

grishnukh said:
Just Joking.
Anyway all of these notes are usefull. But you still don't get it. maybe one of you done it (use am3 cpu on am2/am2+ socket) easily and didn't have any problems. but I know there will be unbelievable problems like this:
http://vip.asus.com/forum/view.aspx?SLanguage=en-us&id=...
as you can see he was not able to do this with my board. but in that forum there are some people that they can were able and some had strange problems. so I'm still waiting to those people's experience that have some mistakes or bad luck and I'm wondering how they did solve it and waht happend.


Why don't you try it yourself, your problems may be different to others anyway, then maybe you could help others.
The Asus site has details of how to get the cpu to work, follow them and stop worrying about what might happen.
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January 6, 2011 8:43:41 PM

It is totally possible to run an AM3 CPU in an AM2 (NOT AM2+) board.....

I am currently running:
Phenom II x4 945 in a Gigabyte GA-M57SLI-S4 with DDR2 RAM @ 800 MHz...

You just need to check your motherboard's compatability list.....
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January 6, 2011 8:49:36 PM

my newest work horse.......... Gigabyte MA785GM-US2H-- AMD 1090T-- 4 1gig DDR2 800, Corsair XMS.......... so does that answer your original question ?
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January 6, 2011 9:25:56 PM

Quote:
^
swifty_morgan
I knew that was possible..
with 4x1GB is your RAM running in dual channel.?


yes.
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January 6, 2011 9:41:49 PM

Quote:
prove it:
http://www.cpu-upgrade.com/mb-Gigabyte/GA-M57SLI-S4%28r...
AMD Phenom II X6
HDT35TWFK6DGR 1035T 2600 MHz, 512 KB, L3 6MB, Thuban, 0.045 micron, Stepping E0, 95 Watt, 4000 MHz HT 1.0 Not supported
1045T 2700 MHz, 512 KB, L3 6MB, Thuban, 0.045 micron, Stepping E0, 95 Watt, 4000 MHz HT 1.0 Not supported
HDT55TFBGRBOX

HDT55TFBK6DGR 1055T 2800 MHz, 512 KB, L3 6MB, Thuban, 0.045 micron, Stepping E0, 125 Watt, 4000 MHz HT 1.0 Not supported
HDT55TWFGRBOX

HDT55TWFK6DGR 1055T 2800 MHz, 512 KB, L3 6MB, Thuban, 0.045 micron, Stepping E0, 95 Watt, 4000 MHz HT 1.0 Not supported
1075T 3000 MHz, 512 KB, L3 6MB, Thuban, 0.045 micron, Stepping E0, 125 Watt, 4000 MHz HT 1.0 Not supported
HDT90ZFBGRBOX

HDT90ZFBK6DGR 1090T 3200 MHz, 512 KB, L3 6MB, Thuban, 0.045 micron, Stepping E0, 125 Watt, 4000 MHz HT 1.0 Not supported



Prove it? Your own link proves it..... But anyway...

http://valid.canardpc.com/show_oc.php?id=1578920
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January 6, 2011 9:46:13 PM

Man, this looks like a complicated thread... :p 

I'm running an Athlon II X2 250 on a Foxconn A79A-S, wich is AM2+ and has the 790FX Chipset with 2x2GB DDR2 800 in dual-channel and had no problems at all. I installed W7 a dew months ago for the last time and it is running 24/7 without a single crash. When i first put the system together i OC'ed a little just for fun and still had no problems at all, except those of testing the machine with the mems at 950MHZ, wich of course crashed after a few seconds :p 

Conclusion, although i own a Foxconn mobo i do trust very much Asus' BIOS as i had the chance to test out a few dozens of their boards and they are a very respectable company. I went to your mobo's official page and saw that they list every phenom ii as compatible. If all the components are well i see no problem for you in the road. Don't forget that a slightly bad memory chip can lead to an unstable system and that most of the times that a system crashes it has nothing to do with the CPU.
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January 6, 2011 11:04:43 PM

Woah. This thread has me lost now lol.

Grishnukh, would you mind posting a list of any outstanding problems or questions you still have?
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January 6, 2011 11:20:15 PM

Don't tell me... :heink:  ...You weren't looking again. :na: 
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January 6, 2011 11:27:11 PM

That could explain why this thread got so tripped out when you appeared then.
I just don't know what happened, The Hulkster and Mr.T are totally brain shag**d dealing with you sucka's.
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January 6, 2011 11:36:00 PM

Yeah man...radical.
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January 7, 2011 12:09:15 AM

Quote:
good work...
I'll give credit when credit is do..



Thanks. Actually just realised that in that link it is only running at 800MHz... That is just the cool and quiet AMD thing, underload it runs at 3.0GHz as per a stock 945...
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January 7, 2011 5:28:35 AM

teflon2287 said:
It is totally possible to run an AM3 CPU in an AM2 (NOT AM2+) board.....

I am currently running:
Phenom II x4 945 in a Gigabyte GA-M57SLI-S4 with DDR2 RAM @ 800 MHz...

You just need to check your motherboard's compatability list.....


Well.. This is successful one!! Thanks for note.
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January 7, 2011 8:27:39 AM

swifty_morgan said:
my newest work horse.......... Gigabyte MA785GM-US2H-- AMD 1090T-- 4 1gig DDR2 800, Corsair XMS.......... so does that answer your original question ?


Are every 6 cores of that stuff working on that board?
What's your HT link speed please?
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January 7, 2011 8:33:03 AM

matroska said:
Man, this looks like a complicated thread... :p 

I'm running an Athlon II X2 250 on a Foxconn A79A-S, wich is AM2+ and has the 790FX Chipset with 2x2GB DDR2 800 in dual-channel and had no problems at all. I installed W7 a dew months ago for the last time and it is running 24/7 without a single crash. When i first put the system together i OC'ed a little just for fun and still had no problems at all, except those of testing the machine with the mems at 950MHZ, wich of course crashed after a few seconds :p 

Conclusion, although i own a Foxconn mobo i do trust very much Asus' BIOS as i had the chance to test out a few dozens of their boards and they are a very respectable company. I went to your mobo's official page and saw that they list every phenom ii as compatible. If all the components are well i see no problem for you in the road. Don't forget that a slightly bad memory chip can lead to an unstable system and that most of the times that a system crashes it has nothing to do with the CPU.

Thanks for sharing
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January 7, 2011 8:53:22 AM

enzo matrix said:
Woah. This thread has me lost now lol.

Grishnukh, would you mind posting a list of any outstanding problems or questions you still have?


Dear Enzo!
As you can see in the link that mr teflon2287 gave us , his cpu is working at 800 mhz and that's terrible .So this is just one of those problems that i think probably can happen.Obviously I'm not rich enough to upgrade my hole pc in every 2 years. because of that I'm trying to find a "SAFE" way to upgrade only that parts that can help me most.I said safe because I don't wanna lose that stuff's cost because of incompatibility of that stuff with my PC. beside these notes are useful for everybody who even not using amd. this is about the boards,brands ,cpus ,rams and actually how it works and will be compatible and performance together .So tthis thread will continue to we discover new events and accidents about this.
Thanks all.
So I'm still waiting for new experience about it.
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January 7, 2011 10:04:01 AM

It not a problem as he explained its cool n quiet.

You my friend are just worrying too much.

Your questions were answered in the 1st couple of responses in this thread but you seem to just keep going over and over the same stuff. I understand your concerns but you should just get on with it now.
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January 7, 2011 10:06:12 PM

That may be correct and very informative but it doesn't change the fact that it works perfectly well.
I have been running AM3 in AM2+ board for quite some time as others have with no issues.

I have benched the same cpu in a Crosshair 3 board and the differance was minimul.
The overclock was slightly higher on the AM3 board.
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January 8, 2011 12:55:56 AM

grishnukh said:
Are every 6 cores of that stuff working on that board?
What's your HT link speed please?


Yes, all 6 cores working. Motherboard recognized the processor right away. Everything else is at stock speeds.
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January 8, 2011 6:45:02 PM

Quote:

bottom line from the way it now seems that any AM2 with enough VRAM is capable with a BIOS update
to run AM3 chips..
(malmental still skeptical however)


So...
What's the VRAM please?
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January 9, 2011 9:34:09 AM

beanoslim said:
Never seen that before, how'd you do it?



Sorry, I'm not sure that I understand you correctly.

Do you mean, how did I get it to show the actual maximum clock instead of the cool and quiet 800MHz? To do that I was just running something CPU intensive in the background (in this case, using gamma cruncher to calculate pi using all 4 cores), then hit validate in CPUz while it was running.
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January 9, 2011 9:38:39 AM

No I'd never seen the cpu-z validation but I've found it now thanks.

Anyone know how you snap your desktop screen display so you can post it?
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January 9, 2011 9:49:25 AM

Quote:
Yeah bot saying it wont work it will work. Just explaining why some people have issues with certain boards doing it


Yeah its definately a better setup on the AM2+ boards, I also have an AM2 DFI590SLI which was their flagship model and it won't run any Phenoms full stop even though other 590 boards will, but it clearly isn't supported on the website.

Basically if its listed as supported on the manufacturer website it should be ok.
Just trying to stop the OP freaking out again. :lol: 
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January 9, 2011 10:24:31 AM

Yeah but if its listed and shown as tested and supported thats gotta be a good sign also.
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June 18, 2011 5:24:14 AM

teflon2287 said:
It is totally possible to run an AM3 CPU in an AM2 (NOT AM2+) board.....

I am currently running:
Phenom II x4 945 in a Gigabyte GA-M57SLI-S4 with DDR2 RAM @ 800 MHz...

You just need to check your motherboard's compatability list.....



Agree with you there. Same board, I've got revision 2.0. Just dropped an Athlon II x4 640 into the board last night, works wonderfully. Vastly improved frame rates in games, great increase across the board.

One note, anyone who has this board, if you are upgrading to a quad, the FHL bios that is on Gigabyte's site did not work for me. I happened to have a copy of the FHe bios from someone on the forums, so had to put the old chip back in, and reflash. Once I dropped back to the FHe bios, the board and chip were happy. If anyone needs a copy of this bios, let me know, I've still got a copy on my memory stick.
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