Epox 8kda3-j does not like 3 sticks of corsair

[lavaheadache]

When using 3 sticks pc 3200 the speed defaults to 133 mhz. Using only the 2 256's It works fine or only using the 512 it works fine too. I cant get all 1 gig to be recognized at ddr 400 speed. This system is a transfer of all internals of my previous barton 2800/ asus sytem(in my sig). The mobo and a64 are both brand new. Ive been through the bios, and everything looks ok. any suggestions

 

[ChicagoPCGuy]

Originally posted by: lavaheadache
When using 3 sticks pc 3200 the speed defaults to 133 mhz. Using only the 2 256's It works fine or only using the 512 it works fine too. I cant get all 1 gig to be recognized at ddr 400 speed. This system is a transfer of all internals of my previous barton 2800/ asus sytem(in my sig). The mobo and a64 are both brand new. Ive been through the bios, and everything looks ok. any suggestions

Yup. This is how the motherboard is designed. EPoX is following the AMD recommendation to the letter. Basically, if you go to using two double sided sticks of RAM, then the RAM speed defaults to DDR333 and you cannot change it, no matter what. You either have to use one double sided stick, or use three single sided sticks to retain DDR400 speed.

 

[BlindBartimaeus]

I have had two of those motherboards...either they are workin great or a major pain in the butt. Got rid of both love my Soltek

 

[ribbon13]

Sell the 2x256 on ebay. You can pick up another 512mb for $50

 

[lavaheadache]

this really blows, is there any thing I can do to get around this

 

[BlindBartimaeus]

I think the poster above you is on the right track. Personally I would but the dual channel Kingmax at newegg for 73 shipped after rebate and sell the other stuff...very nice upgrade for cheap.

 

[ChicagoPCGuy]

Originally posted by: ribbon13
Sell the 2x256 on ebay. You can pick up another 512mb for $50

He will still be in the same boat. It he plugs in more than one single double sided DIMM (ie, a 512 MB or 1 Gig one), then he will get DDR333. The best bet is to go with a single 1 Gig stick, if you have the money.

Otherwise, go with three single sided sticks (256 mb sticks are almost always single sided).

 

[lavaheadache]

Originally posted by: ChicagoPCGuy

Originally posted by: ribbon13
Sell the 2x256 on ebay. You can pick up another 512mb for $50

He will still be in the same boat. It he plugs in more than one single double sided DIMM (ie, a 512 MB or 1 Gig one), then he will get DDR333. The best bet is to go with a single 1 Gig stick, if you have the money.

Otherwise, go with three single sided sticks (256 mb sticks are almost always single sided).

No, I clearly started that using the 2x 256 sticks It runs fine at 1t ddr 400

 

[lavaheadache]

Do you guys think that if I get another 512 of corsair xms I will be in business?

 

[ChicagoPCGuy]

Originally posted by: lavaheadache

Originally posted by: ChicagoPCGuy

Originally posted by: ribbon13
Sell the 2x256 on ebay. You can pick up another 512mb for $50

He will still be in the same boat. It he plugs in more than one single double sided DIMM (ie, a 512 MB or 1 Gig one), then he will get DDR333. The best bet is to go with a single 1 Gig stick, if you have the money.

Otherwise, go with three single sided sticks (256 mb sticks are almost always single sided).

No, I clearly started that using the 2x 256 sticks It runs fine at 1t ddr 400

Yes, of course it will. 256 megs sticks are single sided. duh. you put in two 512 sticks like Ribbon suggested and you will drop back to DDR333. 512 megs sticks are double sided.

 

[lavaheadache]

my 256 sticks of corsair xms are double sided! I can clearly see mem modules on both sides of the ram yet I have no problems running tham at ddr 400

 

[ChicagoPCGuy]

Originally posted by: lavaheadache
my 256 sticks of corsair xms are double sided! I can clearly see mem modules on both sides of the ram yet I have no problems running tham at ddr 400

NO THEY ARE NOT. Just because you have chips on both sides does not make them double sided. Double sided DIMMS are 64Mx64bit, where single sided are 32Mx64bit. How they are physically laid-out vs. logically laid-out is what makes the difference. You cannot necessarily tell by looking.

Do some research and some learning. Enough said.

 

[lavaheadache]

Originally posted by: ChicagoPCGuy

Originally posted by: lavaheadache
my 256 sticks of corsair xms are double sided! I can clearly see mem modules on both sides of the ram yet I have no problems running tham at ddr 400

NO THEY ARE NOT. Just because you have chips on both sides does not make them double sided. Double sided DIMMS are 64Mx64bit, where single sided are 32Mx64bit. How they are physically laid-out vs. logically laid-out is what makes the difference. You cannot necessarily tell by looking.

Do some research and some learning. Enough said.

Im trying to learn, why the hell do you think I'm on this freaking forum! I would classify this as research, wouldn't you?

 

[lavaheadache]

ttt