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Q&A for the topic VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's & RAM....

runn3R

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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #15 on: August 25, 2010, 05:32:41 pm »
Thanks absic :)
« Last Edit: October 07, 2010, 05:24:56 pm by runn3R »
ZX-S & C64 are still my favourites ;-)

j2o

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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #16 on: September 02, 2010, 10:53:31 am »
dont for get the phenom ii will still run on CORSAIR DDR2 XMAS2-6400 800mhz CL4 ram at 555 18  dual channels /unganged
GA-MA790X-UD3P ,X4 9850be,XMAS2cl4 800mhz, BFG GTS250 1GBoc & M4N98TD EVO,X4 B50be, gskill DDR3 1600 1.5v cl9. X2  inno3d 9600GToc DDR3 512

Paul213

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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #17 on: September 22, 2010, 08:40:40 pm »
Thanks for all the work you did here, wouldn't have known a thing about the memory needing to be at 1333 Mhz, had mine at 1600 Mhz (for a short while) on a GA-890GPA-UD3H Rev. 2.0 with a Phenom II X4 955.  Changed it to 1333 Mhz to be on the safe side and cranked the 955 up a bit to 3.8, works like a dream at the moment.

Cheers.

Dark Mantis

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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #18 on: September 22, 2010, 08:51:55 pm »
Yes it was a very important bit of work and meticulously doicumented and thankfully it will stop a lot of disasters for people who wouldn't have known any different.
Maybe he's not as bad as I make out sometimes ;)
« Last Edit: September 22, 2010, 08:53:01 pm by Dark Mantis »
Gigabyte X58A-UD7
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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #19 on: October 04, 2010, 07:17:40 pm »
hi all- first post here..

um- i was not clear on this part.. not sure if its saying its best to run mem at all times in single channel un ganged- no matter if trying to run up to or above 1333-

" AMD recommend running RAM in Unganged (Single channel) mode.
From my own testing, RAM above 1333 Mhz can be extremely fussy if you insist on trying to run in Ganged (Dual channel) Mode and will often return an Overclock warning at start-up and revert to 1333 Mhz., by default. In most modern mult-threaded applications there is actually no loss in performance when running in Unganged Mode and, in some instances, Unganged mode is actually superior. "

to read this- i sounds like its best to run single channel un ganged if you plan to run your memory over 1333- being we cant run our memory over 1333 with out possible damage to the memory controller- well i have no plans to run it over 1333.. i guess my question is- running memory at no higher than 1333- would single or duel channel and or ganged- un ganged be best.. should i just assume single channel un ganged is best no matter what my memory speed is? being a fps  type gamer- i need to know these things- i had always thought duel channel is best for gaming- but ive never used a am3 either..

** im getting ready to buy and build 2 GA-890GPA-UD3H and a Phenom II X6 1055T for my bud and i- well he is buying. memory is my snag right now. i was thinking id buy 1600 memory. after reading this i still might and just drop it back to 1333 and try to up the multiplier a lil- id be happy at 3.2 to 3.4gigs on the cpu and if i can do it and not up any voltages id be even more happy. i will not oc my buds system. i do not know how to oc.. i was going to get a msi or asus mobo because of oc tools built in.. but for the newer chip sets they all lack older legacy support and all my ide opt drives and sata 3gig hdd would be useless..
 
i plan to run our nvidia video cards 1 each system- he has a nv 9800gt mine is sig below- but soon i hope to get a 4700. i never plan to run sli or cf but might think about a added vid card for physics.. no disrespect but i have no plans to ever run ati vid cards- i think its less problems with nvidia.. but i cant get a sli mobo with features i want.. and again. i have no plans to sli.. its just  mobos with multi pcie vid card slots generally have better caps and cooling etc on them. most of the mobos with out extra slots have less power phases and maybe no cooler etc. im a fps type gamer and make in game videos and post on line- convert cds and general surfing-- my bud is just a general user- office type stuff and weather info and mostly flash weather maps etc.. gees trying to find 6gig sata drives and under 100 bucks and under 640gigs with good ratings is like pulling teeth- i do not plan to run raid. i think 320gig main drive is to much.. but i could live with that.. will not take forever to scan or defrag- and id never fill it up and maybe lose all info on it if it breaks.. selection sucks its maybe 10- 6gig sata drives on earth- its still 5 million sata 3gig drives..

i have been reading everything all week.. but this post on memory and the controllers on the cpu's has really helped me a lot- and is first ive seen on the topic.. Congrats to you guys for putting this together.. now i need to figure out what would be best 2 stix 4gig and 8gig kits would be- brand etc. the list from the mobo site page is out dated and has no info for any 4 or 8 gig kits- well 1 kingston i think.. but id like to get the most low cl and voltage i can- best i read id want 1.5v some mem is 1.65 or so. im not sure if that is put on the controller or not or what its limits are-- like i read you should never push cpu voltages past a certain limit etc.. should i assume i should not buy memory that is stated to run at over 1.5v. i plan to run 4gig in my buds system and 8gigs in mine.

and i see 1600 memory at say 8-8-8-18 or 8-8-8-24- which would my mobo and cpu above generally like best- 18 or 24? any way.. i plan to start a thread about this build.. sorry i went on and on and cant type etc either..

gigabyte has the older legacy support i need- so i guess you folks will get our cash.. we will buy 2 of these asus monitors in the next week or so.. maybe buy all of the hardware at that time- im not sure yet.. but i plan to carry over as much stuff as i can.. oh ya i plan to go with w7 upgrade- we have had it a year or so now- i plan to install it for the new builds.. and being i will use our thermalright si128's i will have to change the cpu cooler braket you guys have on the mobo- yours is the older type with only 1 catch on each side- i need 1 with 3 catches on each side.. but they come with the coolers- i might have to buy 1 tho..>

Asus ML238H 23" 1920 x 1080 2ms Full HD Swivel and Tilt adjustable LEDBacklight LCD Monitor Slim Design 250 cd/m2 10,000,000 :1

thanks again for you guys work on this topic.. im sure it will help lots of folks..

see ya..

« Last Edit: October 04, 2010, 08:49:25 pm by ezegamer »
Abit Fatal1ty an9-32x. v1.1 bios18.
ADA4800IAA6CS. htt220.6 @2646.
Dellp780 17". XPpro sp2dx9c.
Antec p160+120mm intake mod.
Thermalright si128. EVGA 88gts ko.
Corsair tx750. WD1600/3200AAJS. 
OCZ2N800SRC44GK 5-5-5-15 t2 2.1v
@441. Samsung dvdrw. Fios 15<>5mbps

Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #20 on: October 04, 2010, 10:50:29 pm »
sorry to go on and on, but id like to add.

i seen in the other post that sent me here.. the fella at first did not run memtest86, then it seemed like he ran it out of spite. i think he said he ran it 2 pass'

it should be made clear that is just wrong. and should not be recommended.  i know from my own stress testing. it is a standard by which i have always read and gone by my self.. i understand folks might be in a hurry when testing and trying to post for such things like these info purpose threads.

i have always read and tested like this.. you are supposed to run memtest86 24 hours if all is good, fine. if not good reset things and try again, but should pass for 24 hours.. after booted into windows and drivers etc installed, you should run prime95 for 24 hours. what i do to get 100% cpu is run cpu burn in at the same time. it should run for 24 hours with out fail..  if all is good after say 40 minutes, and if all my security etc is installed, i might surf the net while stressing in the back ground.

i know from my own stress testing and reading from others.. memtest if not fail in first pass or 2, most likely will fail in pass 4 or pass 7. most every 1 know will run memtest if in a hurry, no less than say 8 to 10 passes.. also a few times ive had prime fail after about 7 hours for some reason.. i make changes and test again. i let tests run while i sleep what ever. say i am in a hurry for some reason and only run memtest for 8 passes, and prime for say 10 hours.. i will later come back and run the tests for another 15 on up to 24 hours each. you pretty much know for sure you are safe.. 2 pass' and let it go should never be recommended- ever.  

id say bare minimums should be,  memtest86 10 pass' and 10 hours of prime95. i have had prime fail at like 13 hours..  again if in a hurry, id run tests more later, just to  feel safe. especially if this is a new build, you want to try and break it, so if it does break, its more easy to return to the store in first 30 days versus the manufacturer after 30 days, or normally any way.. so if it stress' for 24 hours, it should run forever.. and normally the cpu etc will never run at 100% again.

if im just doing a mem upgrade, after memtest and in windows, i run prime and cpu burn in, but might end cpu burn in after 6 or 8 hours and just keep prime running in the back ground.. im not sure if you can run multi instances of prime at 1x,  but all my abit systems have ran great for me.. im sad they abit is no more.. im looking for a new mobo home..

any way.. we need our stuff to last-- i know i do not have money to burn or waste.. and its other folks who know no better.. you should not short folks on proper stress test practices, and being you put so much effort into your thread about memory and over clocking etc.. its not done until its stress tested.. by all ive ever read, you should stress in memtest for 24 hours and stress in windows for 24 hours..

1 more note: you can stress 24- 48 hours all is good, then run maybe 3dmark graphics tests and fail. then you have to figure out if it is mem or cpu or vid card or psu or heat etc, maybe have to start all your tests all over again.. ha ha.

some say stress for 24 hours total.. i normally test 30 or so. i split it 15 or so hours for memtest and then 15 for prime/ cpu burn in combo.. i feel pretty safe.. 2 pass is nothing.. please help folks to understand, its not done until they have stress tested for said 24 hours.. thanks..

you folks take care.. see ya..
« Last Edit: October 04, 2010, 11:46:36 pm by ezegamer »
Abit Fatal1ty an9-32x. v1.1 bios18.
ADA4800IAA6CS. htt220.6 @2646.
Dellp780 17". XPpro sp2dx9c.
Antec p160+120mm intake mod.
Thermalright si128. EVGA 88gts ko.
Corsair tx750. WD1600/3200AAJS. 
OCZ2N800SRC44GK 5-5-5-15 t2 2.1v
@441. Samsung dvdrw. Fios 15<>5mbps

Dark Mantis

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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #21 on: October 04, 2010, 11:02:51 pm »
Well thanks for your input and views. You raise some very good points there and it would be good if some people would listen. So many people can't be bothered to test thoroughly and as you noticed sometimes we have trouble even getting them to test at all. ::)
« Last Edit: October 04, 2010, 11:03:28 pm by Dark Mantis »
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

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i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
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Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #22 on: October 04, 2010, 11:09:44 pm »
true..

it cant hurt to press the value of stress testing. even if it has to be added to a sig or banner or something.. it benefits us all in the end, to know we cant break our gear, and it should last..

cant wait to get my new monitor. my 19" viewsonic died. im on my back up.. well- i cant wait to build these new systems and get me a 4700.. i need some high res gaming. ha ha..

take care :)
« Last Edit: October 04, 2010, 11:32:43 pm by ezegamer »
Abit Fatal1ty an9-32x. v1.1 bios18.
ADA4800IAA6CS. htt220.6 @2646.
Dellp780 17". XPpro sp2dx9c.
Antec p160+120mm intake mod.
Thermalright si128. EVGA 88gts ko.
Corsair tx750. WD1600/3200AAJS. 
OCZ2N800SRC44GK 5-5-5-15 t2 2.1v
@441. Samsung dvdrw. Fios 15<>5mbps

Re: VERY IMPORTANT INFORMATION REGARDING AMD AM3 CPU's and RAM SPEEDS
« Reply #23 on: October 06, 2010, 10:41:15 pm »
Hi Absic,

I just took the time to register on this forum to say thank you very much.

I just built a system with a GA-890GPA-UD3H (Rev 2.1) with a Phenom II X4 965 BE and Kingston 4GB (2x2GB) DDR3 1600MHz HyperX Memory. I was aware that with this RAM you had to set your mobo's BIOS settings to run it at 1600mhz otherwise it would run at 1333mhz. So I thought i was being very clever by setting it to run at 1600Mhz and I then went merrily along installing windows etc. The result: random BSODs and freezes running anything in windows, from installing programs to games. In games I couldn't do anything for more than a few seconds without a BSOD. Ran Memtest86+ which actually itself froze after 3 or 4 minutes. Stripped system to barebones, switched out components with another PC... ended up with nothing but a severe headache and a load of stress.

Thank god I came on this forum and read your post. I set my mobo BIOS back to defaults and it put all the RAM settings back to default (1333Mhz). Now my system appears to be completely stable, just played Battlefield Bad Company 2 for 2 hours without a suggestion of a problem. Before it quite often wouldnt even load a map without a BSOD.

So again, you have my sincere thanks.

All the best

Hi!

I´m new on this forum. I´ve just bought a GA-890GPA-UD3H (Rev 2.1) with a Phenom II X6 1090T, and I´m in trouble choosing RAM. My idea was to buy G. SKILL FLARE [ FL] F3-16000CL9D-8GBFL (4Gx2) (which are for  Phenom II x6 only), but it seems that they are discontinued or something.

Other options are:

G.SKILL Ripjaws Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory Model F3-16000CL9D-8GBRM

CORSAIR XMS 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory Model CMX8GX3M2A2000C9

CORSAIR DOMINATOR GT 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 2000 (PC3 16000) Desktop Memory with Airflow Fan Model CMT8GX3M2A2000C9

Any advice? Considering compatibility & stability which is the best option??

If anyone knows where I can buy the G. SKILL FLARE model please tell me... 


Referred to the topic, G.Skill guarantees 2 Dimms dual channel operation would reach DDR3-1800 (PC3 14400) with this specification:

(link to g.skill web http://www.gskill.com/products.php?index=275)

Main Board          AMD ( For  Phenom II x6 only )
System                    Desktop
System Type           DDR3
M/B Chipset             AMD 790/890 Series
CAS Latency           6-8-6-24-2N
Capacity                   4GB(2GB x 2)   
Speed                   DDR3-1800 (PC3 14400)
Test Voltage           1.65 Volts

...And this is Qualified Motherboards List
 
ASUS   M4A89GTD PRO
ASUS   M4A89TD PRO
ASUS   M4A88TD-V EVO/USB3
ASUS   M4A79T Deluxe
ASUS   M4A78T-E
ASUS   Crosshair IV Extreme
GIGABYTE   GA-890FXA-UD7
GIGABYTE   GA-890FXA-UD5
GIGABYTE   GA-890GPA-UD3H
GIGABYTE   GA-880GA-UD3H
GIGABYTE   GA-870A-UD3
GIGABYTE   GA-MA790XT-UD4P
GIGABYTE   GA-MA790FXT-UD5P

Acording to this they have tested their RAM at this speed, or am I wrong?

Thanks in advance
GA-890GPA-UD3H (Ver 2.1)
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G-SKILL FLARE 8Gb
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Dark Mantis

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I take it that you are insinuating that this memory would be safe to run at that speed on this platform. If htat is correct then I am sure they hav etested it and it runs but that doesn't necessarily mean that it is safe or wise to do so if you value your CPU. Please see this thread written by the AMD Section Moderator for more information.

http://forum.giga-byte.co.uk/index.php/topic,2515.0.html
Gigabyte X58A-UD7
i7 920
Dominators 1600 x6 12GB
6970 2GB
HX850
256GB SSD, Sam 1TB, WDB320GB
Blu-Ray
HAF 932

Gigabyte Z68X-UD5-B3
i7 3770K
Vengeance 1600 16GB
6950 2GB
HCP1200W
Revo Drive x2, 1.5TB WDB RAID0
16x DLRW
StrikeX S7
Full water cooling
3 x 27" Iiy

I take it that you are insinuating that this memory would be safe to run at that speed on this platform. If htat is correct then I am sure they hav etested it and it runs but that doesn't necessarily mean that it is safe or wise to do so if you value your CPU. Please see this thread written by the AMD Section Moderator for more information.

http://forum.giga-byte.co.uk/index.php/topic,2515.0.html

yes, I´ve previously read it  :'(

Thanks
GA-890GPA-UD3H (Ver 2.1)
AMD PHENOM II X6 1090T 3.2 Ghz
G-SKILL FLARE 8Gb
WD CAVIAR BLACK 1TB SATA 3
Satellite SL-X1000 EPS 1000 Watts
Logitech G15
Mouse Sidewinder X5
SONY KLV-37L500A LCD 37"

jolphil

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Ok first off I must apologise for making a basic mistake when talking about Dual Channel/Single Channel and Ganged/Unganged Mode. In my attempts to make things easily understood I actually mixed my terminology and would like to clarify my error.
??? I'm not sure where the error was..
I have used this excellent post as a guide when I first started to purchase my system..It no doubt has saved me countless hours in troubleshooting time and money..If more people would just read this sticky first, then build, my guess this forum  would
have less troubled posts , and more success stories..
No matter how smart we think we are, generally the experts that have tested and learned by trial and error and have documented
here in this forum can lead us in the right direction if we choose to follow..
Just one persons opinion.. Have Fun all
jolphil :)

jannie

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 ???Have to agree with you Jolphill, gosh its only a year ago that I didn.t know how to open a computer case, never mind build my own rig, but these two guys here DM & Absic helped me on and gave me so much knowledge and now that I have built 2 rigs. Yes they know their stuff 8)
2x Cooler Master HAF X full tower
Gigabyte GA-890XA-UD3 AMD 790X AM3 Motherboard
AMD CPU Phenom II 1090Tx6
Corsair Memory XMS3 Classic 8GB DDR3 PC3-10666 (1333)
Corsair HX 850 W  (PSU)
Noctua NH-U12P-SE2 CPU Cooler
1GB Gigabyte NVIDIA GTX 460 OC Graphic

absic

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... but these two guys here DM & Absic helped me on and gave me so much knowledge and now that I have built 2 rigs. Yes they know their stuff )


You should have seen the pair of us in the snooker/pool hall before computers came along!  ;)
Remember, when all else fails a cup of tea and a good swear will often help! It won't solve the problem but it will make you feel better.