Question about upgrading RAM .

Hi all,
I have a system with the following configuration.

Phenom ii X4 955 BE.
Asus m4a78te 790gx (4x dimm , max. 16GB, DDR3 1600 (o.c.) / 1333 / 1066mhz, ECC & Non-ECC Unbuffered)
Ram Transcend Jet Ram 2gb 1333(single piece) jm1333klu-2g

Questions
1)Can I attach another 2GB 1333Mhz from Corsair? Will it match? If yes please, suggest the model number.

2) Can I attach 4GB 1600 Mhz (2x2gb) from Corsair altogether?

*Mod Edit = FilledVoid *

Re: Serious sam,sorry, ram

avichandana20000 said:
I HAVE PHENOM II X4 955 BE.

MOBO ASUS M4A78TE 790GX
(4X DIMM , MAX. 16GB, DDR31600(O.C.)/1333/1066mHZ, ECC & NONECC UNBUFFERED)

RAM TRANSCEND JET RAM 2GB 1333(SINGLE PIECE) JM1333KLU-2G

1)CAN I ATTACH ANOTHER 2GB 1333 FROM CORSAIR? WILL IT MATCH? IF YES SUGGEST THE MODEL NUMBER.

2) CAN I ATTACH 4GB 1600 Mhz (2X2GB) FROM CORSAIR altogether?

Yes u can...coz ur mobo supports it...but make sure they r of same frequency :-o

Re: Serious sam,sorry, ram

That is the most misguiding thread title ever.

And yes u can attach another 2GB 1333 RAM module.
As it says 4X DIMM slot, u can attach another 3 RAM modules.

Re: Serious sam,sorry, ram

karanth85 said:
yes u can...coz ur mobo supports it...but make sure they r of same frequency

how to check that frequency?

Re: Serious sam,sorry, ram

avichandana20000 said:
how to check that frequency?

u can check while booting in BIOS post screen....
or u can use 3rd party tools such as CPU-z or Everest.. :-o

---------- Post added at 05:28 PM ---------- Previous post was at 05:27 PM ----------

rhitwick said:
That is the most misguiding thread title ever.

Ya i thought it abt the old game 'Serious Sam'

Re: Serious sam,sorry, ram

avichandana20000 said:
MOBO ASUS M4A78TE 790GX
(4X DIMM , MAX. 16GB, DDR31600(O.C.)/1333/1066mHZ, ECC & NONECC UNBUFFERED)

and

avichandana20000 said:
how to check that frequency?

If the specs are written correctly ur MOBO sure supports RAM modules starting from anything to 1600MHz max.

As u already own one 1333MHz module buy one of same frequency, not necessarily of same company though.

Re: Serious sam,sorry, ram

First of all such a stupid thread title. Second query is posted in all capitals. Hurts the mind and eyes.

F

Hi Avichandana2000,

Try to keep your post related to the title or vice versa. Ive made some changes to the post to make it more appealing I guess. Take time in checking your posts , as you can see the feedback you get depends on it.

in west bengal in bengali language this kind of language mistake is actually taken to be a subtle sense of humor and i have learnt it from the novels of Rabindranath Tagore.

what i intend to mean is that i am serious about RAM just as SAM is serious in that game.

so lyrics goes like that SERIOUS SAM, but here it is Serious (about)RAM.

any how i am sorry.

but no body is answering me to the point i have given.

F

in west bengal in bengali language this kind of language mistake is actually taken to be a subtle sense of humor and i have learnt it from the novels of Rabindranath Tagore.

I can understand . WHich is why I took the time to modify the post in the first place.

any how i am sorry.

No need to apologize.

but no body is answering me to the point i have given.

Refer to Rhits post. basically you want to pair the same frequency RAM modules . I cant give you Corsairs Modules Model numbers thats way beyond my sub par knowledge of the same. So Id wait for folks to chip in.

If both your RAM modules are of equal frequency and capacity refer the manual and install in the same coloured DIMMs so that it acts in a dual channel way...

rkneo11 said:
If both your RAM modules are of equal frequency and capacity refer the manual and install in the same coloured DIMMs so that it acts in a dual channel way...

Tell me onething, by using cpu-z i can get the frequency of my installed RAM. But how can i know the frequency of the RAM which i am going to buy? specially if the RAMs are of two separate companies. For that i need to depend fully on the specifications given in the sites of the respective company.
that is why i am asking for the model no from the xperts of this forum.

avichandana20000 said:
Hi all,
I have a system with the following configuration.

Phenom ii X4 955 BE.
Asus m4a78te 790gx (4x dimm , max. 16GB, DDR3 1600 (o.c.) / 1333 / 1066mhz, ECC & Non-ECC Unbuffered)
Ram Transcend Jet Ram 2gb 1333(single piece) jm1333klu-2g

Questions
1)Can I attach another 2GB 1333Mhz from Corsair? Will it match? If yes please, suggest the model number.

2) Can I attach 4GB 1600 Mhz (2x2gb) from Corsair altogether?

*Mod Edit = FilledVoid *

Answers:

Ram:
Your system supports RAM to a maximum speed of 1600 Mhz. You currently have this ram. So any RAM with speed <= 1600 can be paired to this DIMM, so YES, you can attach the Corsair 1600Mhz sticks. But they will down clock to the slower ram which is your currently installed Transcend operating at 1333Mhz. And this way if you have 3x sticks you will not get Dual channel mode. It will move to asymmetric -- quite a waste. Ideally if you can source 2x2GB Corsairs, then sell of the Transcend.

How to identify RAM:
See the image below. It has the model number (XMS2), Density (1024MB), Speed (800Mhz), Timings (4-4-4-12). So this way you can tell the details.
*img405.imageshack.us/img405/6403/xms2ram.jpg

Which Ram to get:
Decide first what I recommended in the first paragraph, will tell you the exact model number. Tell the budget too. Also company specification against the model number are always correct.

avichandana20000 said:
in west bengal in bengali language this kind of language mistake is actually taken to be a subtle sense of humor and i have learnt it from the novels of Rabindranath Tagore.

Man!!!

U had a problem and u needed its answer.
Why write a poem for it (then including PUN, read Shibram?)

From next time, please be straight forward.

(b/w I'm a bengali too)

avichandana20000 said:
in west bengal in bengali language this kind of language mistake is actually taken to be a subtle sense of humor and i have learnt it from the novels of Rabindranath Tagore.

what i intend to mean is that i am serious about RAM just as SAM is serious in that game.

so lyrics goes like that SERIOUS SAM, but here it is Serious (about)RAM.

any how i am sorry.

but no body is answering me to the point i have given.

so..this type of lyrics u can post in joke section....

Ram:
Your system supports RAM to a maximum speed of 1600 Mhz. You currently have this ram. So any RAM with speed <= 1600 can be paired to this DIMM, so YES, you can attach the Corsair 1600Mhz sticks. But they will down clock to the slower ram which is your currently installed Transcend operating at 1333Mhz. And this way if you have 3x sticks you will not get Dual channel mode. It will move to asymmetric -- quite a waste. Ideally if you can source 2x2GB Corsairs, then sell of the Transcend.

thanks. so either i have to go for
1)transcend 1333mhz(existing) & corsair 1333mhz

or

corsair 1600 & corsair 1600 mhz

How to identify RAM:

See the image below.

not able to see any image. however i am giving the cpu-z pic of my RAM.*img405.imageshack.us/img405/6403/xms2ram.jpg

Which Ram to get:
Decide first what I recommended in the first paragraph, will tell you the exact model number. Tell the budget too. Also company specification against the model number are always correct

budget still not decided.

now suggest me a 1333 mhz corsair model which can be paired with transcend stuff.with price.

also tell me corsair 1600 mhz 2x2gb (keeping pace with my proccy & mobo.) in case i sell off transcend.

looking at the price you will give i need to accumulate the fund.

rhitwick said:
Man!!!

U had a problem and u needed its answer.
Why write a poem for it (then including PUN, read Shibram?)

From next time, please be straight forward.

(b/w I'm a bengali too)

i have read whole lot of lit. in my past 45 years.

i do apologise for applying things in wrong place.

F

Folks, Please drop the issue

. Its just an innocent post which already has been edited. I'm sure the Thread Starter understands. And Avi Asigh seems to have given you a very good explanation

FilledVoid said:
Avi Asigh seems to have given you a very good explanation

yes . i am impressed. waiting for more reply.

Can you not just sell the Transcend and pick up a 4 GB (2x2GB) Corsair kit. It will be difficult to match those timings. I am always a stickler for "ram should be same company/model/density/speed/timings"...?

asigh said:
Can you not just sell the Transcend and pick up a 4 GB (2x2GB) Corsair kit. It will be difficult to match those timings. I am always a stickler for "ram should be same company/model/density/speed/timings"...?

yes i also think so.

instead of selling i will keep my it as a TEST RAM.

and what is the price of CORSAIR 4GB? MODEL NO.?

in corsair site i found two types of ram given for amd phenomII class processors AND for my mobo model. so i get confused.

Corsair TW3X4G-1333C9 4GB DDR3(2x2GB) Kit @ 9-9-9-24 @ 1333Mhz

RS: 7245.00

asigh said:
Corsair TW3X4G-1333C9 4GB DDR3(2x2GB) Kit @ 9-9-9-24 @ 1333Mhz

RS: 7245.00

THANKS.
and what about 1600 mhz?

Can't the corsair 2x2GB kit be fitted in dual channel and the transcend remain where it is? I mean, 2 corsair's in the red slots and a transcend in the black slot? of course the whole 6 GB will have to be 1333 Mhz, but it will work right?

^^
No, he will loose the dual channel if he does the above. The memory controller cannot see the whole bunch of DIMMs as 'one' if there are three. Its either 2 or 4.

------------------------

Corsair CMX4GX3M2A1600C9
Model : CMX4GX3M2A1600C9
Speed : PC3-12800
Memory : 4GB Kit
Latency : 9-9-9-24
Package : 240pin DIMM

@ 7688

asigh said:
^^
No, he will loose the dual channel if he does the above. The memory controller cannot see the whole bunch of DIMMs as 'one' if there are three. Its either 2 or 4.

OK, that clears my doubt, thanks

Since ongoing discussion is about something i need to query.. let me shoot a question as well..
I have a inpiron 1420 and am using 667MHz DDR2 samsung RAM (2GB).. i am running it on 965 chipset plus C2D T5450.
Now all i want to know is:

1) what other Operating freq available in DDR2? 800 MHz is what i am aware of.. any faster ?
2) if i use a 667MHz Ram and a 800Mhz Ram, will it be an issue?
3) will my system support DDR3?

asigh said:
^^
No, he will loose the dual channel if he does the above. The memory controller cannot see the whole bunch of DIMMs as 'one' if there are three. Its either 2 or 4.

------------------------

Corsair CMX4GX3M2A1600C9
Model : CMX4GX3M2A1600C9
Speed : PC3-12800
Memory : 4GB Kit
Latency : 9-9-9-24
Package : 240pin DIMM

@ 7688

THANKS.

well, i understand memory, package,model. but regarding speed i know it in Mhz then what is that PC3-12800 mean? and often i have seen this type of number given in the specification of RAM.

and

Latency is what?

INS-ANI said:
Since ongoing discussion is about something i need to query.. let me shoot a question as well..
I have a inpiron 1420 and am using 667MHz DDR2 samsung RAM (2GB).. i am running it on 965 chipset plus C2D T5450.
Now all i want to know is:

1) what other Operating freq available in DDR2? 800 MHz is what i am aware of.. any faster ?

Yes, 1066 Mhz is available, though not sure if 1066 Mhz laptop RAM is available or not. But your motherboard might not support it.

INS-ANI said:
2) if i use a 667MHz Ram and a 800Mhz Ram, will it be an issue?

Yes, your system wil not be stable, you can only use separate modules of same frequency

INS-ANI said:
3) will my system support DDR3?

no

---------- Post added at 11:10 AM ---------- Previous post was at 10:58 AM ----------

in PC3-12800, the 3 corresponds to DDR3. I don't know exacltly what the larger number denotes, but if you devide it by 8, you will get the RAM frequency. For example, PC3-12800 is 1600 Mhz DDR3 RAM.
Latency is a very complex prperty (at least for me). The only thing you really need to know is that the lower the better. For more information about latency you can read *en.wikipedia.org/wiki/SDRAM_latency

Yes, 1066 Mhz is available, though not sure if 1066 Mhz laptop RAM is available or not. But your motherboard might not support it.

how can i verify that?

avichandana20000 said:
THANKS.

well, i understand memory, package,model. but regarding speed i know it in Mhz then what is that PC3-12800 mean? and often i have seen this type of number given in the specification of RAM.

and

Latency is what?

DDR3-xxx denotes data transfer rate, and describes raw DDR chips, whereas PC3-xxxx denotes theoretical bandwidth (though it is often rounded up or down), and is used to describe assembled DIMMs. Bandwidth is calculated by taking transfers per second and multiplying by eight. This is because DDR3 memory modules transfer data on a bus that is 64 data bits wide, and since a byte comprises 8 bits, this equates to 8 bytes of data per transfer.

Ram Latencies are:
tCAS
The number of clock cycles needed to access a certain column of data in SDRAM. CAS latency, or simply CAS, is known as Column Address Strobe time, sometimes referred to as tCL.
tRCD (RAS to CAS Delay)
The number of clock cycles needed between a row address strobe (RAS) and a CAS. It is the time required between the computer defining the row and column of the given memory block and the actual read or write to that location. tRCD stands for Row address to Column address Delay time.
tRP (RAS Precharge)
The number of clock cycles needed to terminate access to an open row of memory, and open access to the next row. It stands for Row Precharge time.
tRAS (Row Active Time)
The minimum number of clock cycles needed to access a certain row of data in RAM between the data request and the precharge command. It's known as active to precharge delay. According to Mushkin, in practice for DDR SDRAM, this should be set to at least tRCD + tCAS + 2 to allow enough time for data to be streamed out.

Do remember that SDRAM is idle, and does not remain fixed in the banks. The controller has write it over and over again really quick, to able to retain it, so the CPU can use it. Its like an excel grid (rows/columns), which get filled left to right, top to bottom.

asigh said:
Ram Latencies are:
tCAS
The number of clock cycles needed to access a certain column of data in SDRAM. CAS latency, or simply CAS, is known as Column Address Strobe time, sometimes referred to as tCL.
tRCD (RAS to CAS Delay)
The number of clock cycles needed between a row address strobe (RAS) and a CAS. It is the time required between the computer defining the row and column of the given memory block and the actual read or write to that location. tRCD stands for Row address to Column address Delay time.
tRP (RAS Precharge)
The number of clock cycles needed to terminate access to an open row of memory, and open access to the next row. It stands for Row Precharge time.
tRAS (Row Active Time)
The minimum number of clock cycles needed to access a certain row of data in RAM between the data request and the precharge command. It's known as active to precharge delay. According to Mushkin, in practice for DDR SDRAM, this should be set to at least tRCD + tCAS + 2 to allow enough time for data to be streamed out.

Do remember that SDRAM is idle, and does not remain fixed in the banks. The controller has write it over and over again really quick, to able to retain it, so the CPU can use it. Its like an excel grid (rows/columns), which get filled left to right, top to bottom.

thanks for the xplanation. but since i do not have this level of knowledge many things go as a tangent. :mrgreen:

^^
You too will understand, once you start to OC components. It all makes sense.

I am not very much sure about laptops. Use a software like speccy to check the motherboard model number & check its details online. Or go to Dell's website & see if the details are available