My hard drive speed has dramatically decreased!?

[MegaMillions]

???

That's not what the diagram shows.

A1, A2, B1, B2 is where your 2GB DIMMs go. (4x2GB) = 8GB

A3, A4, B3, B4 is where your 512MB DIMMs go. (4x512MB) = 2GB

You always want the larger DIMMs in the lowest numbered slots.

This doesn't make sense. You're supposed to fill slots 3 and 4 on Riser A before you go onto 3 and 4 of Riser B.

edit: I just called apple, and talked to one specialist who knew his stuff pretty well, but in spite of that I had him forward me to a ram specialist, who said that you have to install ram in matched pairs, and the order is Riser A (1 & 2), Riser B (1 & 2), Riser A (3 & 4), Riser B (3 & 4). So, when I got the 2GB chips and put them in slots 3 & 4 of Riser A, that was the right thing to do.

Now that my hard drive is up to speed again, i'll try and install this ram one more time but if it still reads it as only 1GB each, OWC will replace it.

Thanks for the help!

 

[Tesselator]

This doesn't make sense. You're supposed to fill slots 3 and 4 on Riser A before you go onto 3 and 4 of Riser B.

Well that illustration I posted is from Apple engineering so I suspect it's correct.


I was thinking you has 4 of each tho. My bad on that part.

 

[MegaMillions]

Well that illustration I posted is from Apple engineering so I suspect it's correct.


I was thinking you has 4 of each tho. My bad on that part.

Well, both the experts I just talked to were positive that it doesn't make a difference. They just have to be in pairs. If Riser A (1, 2) and Riser B (1, 2) are taken, the next place that you put chips is Riser A (3, 4). That's just the way it works.. that's the way OWC shows it, that's the way the Apple instructions show it, that's the way these experts described it.

 

[Tesselator]

LOL, you're arguing with the designers of the system? Did the telephone guys or you consider the dissimilar types? If you look at Apple's engineering diagram here, it shows that what you're saying is correct for similar types but as soon as you introduce a pair of larger DIMMs into the mix it changes.

 

[MegaMillions]

LOL, you're arguing with the designers of the system? Did the telephone guys or you consider the dissimilar types? If you look at Apple's engineering diagram here, it shows that what you're saying is correct for similar types but as soon as you introduce a pair of larger DIMMs into the mix it changes.

But the OWC guy, and both Apple experts agreed that it would be wrong to have B (3, 4) filled before A (3, 4).

I don't have anything to defend here. I want to install them in the ideal configuration, i'm just confused as to what that is.

 

[Tesselator]

But the OWC guy, and both Apple experts agreed that it would be wrong to have B (3, 4) filled before A (3, 4).

I don't have anything to defend here. I want to install them in the ideal configuration, i'm just confused as to what that is.

It's the engineering diagram of course. I find "Apple experts" to be rather dumb most of the time. There are exceptions I'm sure.

How much difference it will make by installing it in different ways I dunno. In some situations maybe none. <shrug> Also there seems to be at least two rules being employed and derivable from this diagram. If they only know one of the rules and are going by that then this could explain their mistake. <shrug> <shrug>

 

[MegaMillions]

It's the engineering diagram of course. I find "Apple experts" to be rather dumb most of the time. There are exceptions I'm sure.

How much difference it will make by installing it in different ways I dunno. In some situations maybe none. <shrug> Also there seems to be at least two rules being employed and derivable from this diagram. If they only know one of the rules and are going by that then this could explain their mistake. <shrug> <shrug>

Regardless, the only thing that is "required" is that they are installed in pairs, right? So how do we know that the apple engineering diagram configuration is better than having the 4x512s in slots 1 and 2 on each riser, and the 2GB chips in slots 3 and 4 of riser A. This is what the OWC instruction video says to do. You get an additional pair and you put them in slots 3 and 4 of riser A. This is what it says to do.

 

[J&JPolangin]

...I don't have anything to defend here. I want to install them in the ideal configuration, i'm just confused as to what that is.

...get two more 2GB RAM sticks and put all four in...

 

[Loa]

Regardless, the only thing that is "required" is that they are installed in pairs, right?

My advice: take the time to make some tests of your own. Configure it differently and see what works best (if you find any difference at all) for your needs/apps.

Good luck.

Loa

 

[MegaMillions]

...get two more 2GB RAM sticks and put all four in...

Doing that requires money that I don't have, and provides me with RAM I don't need.

 

[MegaMillions]

My advice: take the time to make some tests of your own. Configure it differently and see what works best (if you find any difference at all) for your needs/apps.

Good luck.

Loa

I will not notice any difference in anything that I do, with one configuration over another. I don't do anything intense enough to notice a difference.

 

[Tesselator]

Send me your mac pro and buy a mini - problem solved!

 

[nanofrog]

Send me your mac pro and buy a mini - problem solved!

Care to send me the '06 MP when you get your package?

 

[Loa]

I will not notice any difference in anything that I do, with one configuration over another. I don't do anything intense enough to notice a difference.

Oh. Wo why bother?

Loa

 

[MegaMillions]

Oh. Wo why bother?

Loa

I'm a perfectionist. I want to install the ram in the optimal configuration.