RAM problem :(

[Unfocused]

I've got an Intel D845PESV motherboard, that can handle 2 DDR sticks at 333Mhz. I had 256MB 333Mhz RAM and today bought a 512MB 400Mhz stick. However I cannot get them to run.

When 1 have the 256MB all is ok.

When I put both sticks the computer says something like "detected memory running at probably 200Mhz (...)" and actually "sees" only the 256MB stick, but runs it at 200Mhz.

When I put only the 512 stick I get 3 (4?) long beeps and that's it, the monitor doesn't even turn on.

What's the cause? Any suggestions?

 

[The Hulk]

I've got an Intel D845PESV motherboard, that can handle 2 DDR sticks at 333Mhz. I had 256MB 333Mhz RAM and today bought a 512MB 400Mhz stick. However I cannot get them to run.

When 1 have the 256MB all is ok.

When I put both sticks the computer says something like "detected memory running at probably 200Mhz (...)" and actually "sees" only the 256MB stick, but runs it at 200Mhz.

When I put only the 512 stick I get 3 (4?) long beeps and that's it, the monitor doesn't even turn on.

What's the cause? Any suggestions?

Hate to tell you this, but that 512MB stick you have is not compatable with your mobo.

Hulk

 

[Unfocused]

Hate to tell you this, but that 512MB stick you have is not compatable with your mobo.

Hulk

I can always return it. How do you know it's not compatible? I know it's 400Mhz but I asked a few ppl and they said it will just downgrade the speed to 333Mhz.

 

[The Hulk]

I can always return it. How do you know it's not compatible? I know it's 400Mhz but I asked a few ppl and they said it will just downgrade the speed to 333Mhz.

Theoretically it should downgrade itself. I don't know why, but I do know that one error that always tells me that the memory is incompatible and/or it is bad RAM is you get a series of beeps and you don't get any video.

 

[oni_666]

On the Intel website it states that your board is only compatible with 333 or 266 memory, 400 is not supported, If it was, it would just downgrade in speed to match your other ram, but because it is'nt supported that does'nt matter.
Take the ram back and get a stick of PC2700.

 

[Unfocused]

On the Intel website it states that your board is only compatible with 333 or 266 memory, 400 is not supported, If it was, it would just downgrade in speed to match your other ram, but because it is'nt supported that does'nt matter.
Take the ram back and get a stick of PC2700.

It's quite logical, that they won't write 400 is supported, when at the time the mobo was released there were no 400Mhz RAM. However I asked the guy in the shop, will it downgrade to match the speed of the other stick and the speed at which the mobo can handle it and he said "yes".

I phoned them and they said that on Monday they will exchange my stick for an Elixir stick and when these memories won't work, we'll try something else or I'll get my money back.

 

[DiSTuRbEd]

However I asked the guy in the shop, will it downgrade to match the speed of the other stick and the speed at which the mobo can handle it and he said "yes".

Well the reason he probably said yes is because he wanted to make money, hehe. But seriously, he should've known it wouldn't have worked.

 

[Unfocused]

Look here: http://www.howtofixcomputers.com/bb/sutra440705.html a guy has a problem but it turns out to be some overheating problem, that he fixed and the 400Mhz RAM work fine on his 266/333 mobo.

Someone on that thread wrote:
DDR400 (aka PC3200) memory is backwards-compatible. Your
system could have a memory compatibility problem, but that
problem would be some other parameter of the memory, NOT
that it's merely PC3200 instead of PC2700 or PC2100
(333/266).

So as we can see, 400Mhz downgrade to 333Mhz on a 333Mhz mobo.

 

[Unfocused]

OK, so I wrote down what error I get at startup: "SERIAL PRESENCE DETECT (SPD) device data missing or inclusive. Properly programmed SPD device data is required for reliable operation. DDR 200Mhz memory assumed at slowest timings."
I looked for some info on it on the internet and found out that Intel asks companies to pay for a special code they have to implement in their RAM so that it works fine with Intel mobo's. Some noname RAM luckily have it too. ****ing Intel :[

 

[DiSTuRbEd]

Thats why its always good to have a custom pc

 

[T.H.C.138]

Thats why its always good to have a custom pc

QFE x100

 

[Unfocused]

Thats why its always good to have a custom pc

Well, that is actually a custom PC But I didn't have much knowledge on mobo's when the guy that made my PC suggested it, so I didn't object.