** HELP RAM not being detected at all ** - Page 2

Pill Monster · 07-27-2012, 19:46 | posts: 20,464 | Location: NZ

^That's right.......

gammelhat · 07-27-2012, 19:48 | posts: 79

What is right? :-)

Pill Monster · 07-27-2012, 19:56 | posts: 20,464 | Location: NZ

Quote:

Originally Posted by gammelhat

What is right? :-)

That dual channel was around before unganged memory controllers..... Isn't that what u meant?...

gammelhat · 07-27-2012, 19:58 | posts: 79

Yes, and back then it was very possible to have three modules all running in single channel - on a dual channel board.

Pill Monster · 07-27-2012, 20:01 | posts: 20,464 | Location: NZ

Sure on a sinle channel chipset, but not dual channel...... Skt 754 comes to mind iirc.

gammelhat · 07-27-2012, 20:03 | posts: 79

Yes, on dual channel boards. Dual channel is still just a feature. They are not required to work together.

It is not as back when we had dinosaurs and that each module only was half the bus width, so you were required to pair the modules.

Pill Monster · 07-27-2012, 20:07 | posts: 20,464 | Location: NZ

Quote:

Originally Posted by gammelhat

Yes, on dual channel boards. Dual channel is still just a feature. They are not required to work together.

It's not a feature, if you put 4 dimms in a dual channel mobo it will be forced to run in dual channel mode, it's not something that can be disabled....

gammelhat · 07-27-2012, 20:09 | posts: 79

Are you shifting the topic now (you tend to do that)? We were talking about using only three modules. You said it was impossible on a dual channel board.

And depending on the modules, even four modules can run in single channel mode.

Pill Monster · 07-27-2012, 20:17 | posts: 20,464 | Location: NZ

Quote:

Originally Posted by gammelhat

Are you shifting the topic now (you tend to do that)? We were talking about using only three modules. You said it was impossible on a dual channel board.

And depending on the modules, even four modules can run in single channel mode.

I tend do do what? Is that supposed to mean something?

4 dimms was an example to make it very simple. The same applies to 3 dimms.

There are only 2 channels, with 3 dimms installed at least one channel has to run in dual channel mode, it has no choice.

Show me a bios where dual/channel mode is a user configurable option....

gammelhat · 07-27-2012, 20:24 | posts: 79

I am not showing you a bios-setup with that option, because I haven't seen it. The bios will internally decide how to program the memory controllers depending on your installed memory modules.

"There are only 2 channels, with 3 dimms installed at least one channel has to run in dual channel mode, it has no choice. "

I am not sure where you are getting that from. Maybe it is because Intel calls it "asymmetric dual channel". Sure, the ram slots are hard wired to the memory controllers, so you cannot escape using both of them, but they are accessed as in single channel.

Regardless, you cannot use this to explain why he is missing some of his ram, because a dual channel board can easily use all three modules. It is not impossible.

alanm · 07-27-2012, 20:39 | posts: 4,963

http://www.intel.com/support/motherb.../cs-011965.htm

Pill Monster · 07-27-2012, 20:42 | posts: 20,464 | Location: NZ

Quote:

Originally Posted by gammelhat

I am not showing you a bios-setup with that option, because I haven't seen it. The bios will internally decide how to program the memory controllers depending on your installed memory modules.

"There are only 2 channels, with 3 dimms installed at least one channel has to run in dual channel mode, it has no choice. "

I am not sure where you are getting that from. Maybe it is because Intel calls it "asymmetric dual channel". Sure, the ram slots are hard wired to the memory controllers, so you cannot escape using both of them, but they are accessed as in single channel.

Regardless, you cannot use this to explain why he is missing some of his ram, because a dual channel board can easily use all three modules. It is not impossible.

Jesus now who's shifting the topic.

I never said said a dual channel board couldn't use 3 modules - nothing of the sort. Hell I have an Abit AN7 the runs dual channel and it only has 3 dimm slots.
What I said was it's impossible for a dual channel board NOT to run in dual channel with 3 sticks installed. Try and pay more attention.

And memory controllers have nothing to do with dual channel ram so stop bringing that up, memory controllers are on the CPU, dual channel ram is related to the chipset.

The BIOS does not decide whether to run dual/single channel either, or access the ram in single channel, an unganged memory controller is not the same as single channel memory, how many times do I have to say this.....?

As for the OP, could be completely wrong about his board not seeing 3 dimms......

gammelhat · 07-27-2012, 20:49 | posts: 79

As for the "you did not say"-part:

Quote:

Originally Posted by Pill Monster

It is running in single channel mode, which is the reason his 3rd module is not detected, in dual channel all modules would show up in bios.

Quote:

And memory controllers have nothing to do with dual channel ram so stop bringing that up, memory controllers are on the CPU, dual channel ram is related to the chipset.

It has everything to do with it. The number of memory controllers decides how many channels you have. 1=single, 2=dual, 3=triple, 4=...

Before the memory controllers were moved to the cpu, it had to do with the chipset, not anymore.

Quote:

The BIOS does not decide whether to run dual/single channel either, or access the ram in single channel, an unganged memory controller is not the same as single channel memory, how many times do I have to say this.....?

Well, not according to amd/intel bios programming references :-)

Pill Monster · 07-27-2012, 20:52 | posts: 20,464 | Location: NZ

That's interleaved and asymmetrical which is similar, but not the same as single dual channel.

gammelhat · 07-27-2012, 20:56 | posts: 79

Why won't you keep your eye on the ball? I will leave you now :-)

Pill Monster · 07-27-2012, 21:05 | posts: 20,464 | Location: NZ

Not sure what you mean...but, bye.

gammelhat · 07-27-2012, 22:24 | posts: 79

What I mean? I mean that you are impossible to discuss anything with. After x number of post you begin with your classic line: "I have never said that".

With intent or not, you act as a troll :-)

HybridAlien · 07-28-2012, 09:50 | posts: 5

Yeah i have the latest bios version for my MB

I will just have to send back the stick of ram and look into getting 2 sticks instead of the one stick.

So are you guys sure it doesnt matter if 2 are 5-5-5-12 and the others 5-5-5-18 etc that wouldnt effect it working or being detected ??

ALSO if i just opt to get a replacement stick (one that works ) will it work ? As in will it work with the other sticks of RAM i already have in the computer and will i get 6gb ???

Pill Monster · 07-29-2012, 10:45 | posts: 20,464 | Location: NZ

Quote:

Originally Posted by gammelhat

What I mean? I mean that you are impossible to discuss anything with. After x number of post you begin with your classic line: "I have never said that".

With intent or not, you act as a troll :-)

That's pretty funny coming from you. Go away.