Please list your resource for this info.
Please list your resource for this info.
Daryl Pritchard "Best PC for Photoshop?" 3/10/03 2:57pm </cgi-bin/webx?13/2>
Russell
From the silence that this thread has generated I can assume that the claim is unfounded?
Lawrence: Thanks for the link to the Intel site. It promotes the technology but fails to address the claim that 2x 512MB dual-channel RAM will not hold as much info as 2x 512MB NON dual-channel RAM will. It does state that it’s faster.
Russell
I had not heard that until now, Russell. Where did you get that information?
Perhaps the reason Intel didn’t address it is because it isn’t true.
Where did you get that information?
Lawrence,
I already gave you the link to the thread in this Forum that made this claim back in March (click on the link I posted in my reply 4 messages ago).
Here it is again:
Daryl Pritchard "Best PC for Photoshop?" 3/10/03 2:57pm </cgi-bin/webx?13/2>
I too question whether the claim is indeed true and that’s why I brought it up again. But back when it was posted no one seemed to dispute the statement so it left me wondering whether it might be true.
Russell
Russell: I can tell you first-hand that’s pure fiction!!! I have 2 sticks of 512MB Corsair PC3200 Dual-Channel DDR in my Asus P4C800 Deluxe motherboard (which is based on the Intel 875 dual-channel chipset). Boot-up reports a total of 1GB. Furthermore, Windows XP, PS, and 3 different memory diagnostic utilities all see 1GB!
PS Rookie,
FWIW I have 2GB RAM on an Intel D875PBZ mobo. XP-Pro and Photoshop both report it as all being there. That’s not quite what attracted my attention with this issue. Anyway …it would seem that it’s a non issue so I’ll just forget it.
I’m moving from a system with 1GB of RDRAM and DDR is proving to be a problem. PS7 and CS are both giving memory errors when performing certain simple routines with the 2GB RAM installed so I’ve pulled 1GB for now until I find DDR RAM that will work properly (1G works fine..)
I came across that post from last March while searching this forum for factors that might be causing this. Right now my local dealer is putting together an identical system with another mobo to determine if my board might be defective. We’ve already tried 2 kinds of PC3200 RAM. Intel has not been very helpful with RAM recommendations for a 2GB system.
The error occurs when I try and save a 60mb RGB image as a JPG using the progressive JPG setting. I get a ‘not enough memory to complete this operation’ message. With only 1GB installed it works fine.
So.. I’m just searching a solution to a problem 🙁
Russell
russ, turn down the memory resouces to about 45% and try again.
I’m now going to move this thread to:
Russell Proulx "Photoshop Memory Usage and filters (bug?)" 12/20/03 10:36am </cgi-bin/webx?13/2>
I don’t seem to be alone with this problem. Misery loves company 🙂
Russell
Yes, Usually Daryl is a very good source on info, but two times on the same thread, he makes a mistake…
Using DDRAM does NOT divide the amount of memory, yes the memory width becomes 128 bit instead of 64 but is no need to cut the amount in two…
Strange… maybe he lacked sleep that day…
Oops!
Hi folks….Well, I thought I had my facts right, but I’m actually glad to hear I was wrong. I don’t have a dual-channel board myself but had read up on them in hopes to eventually upgrade. Somewhere (and I wish I could remember the source), I was led to believe what I had previously posted here, that the RAM is effectively half the total installed when running in a dual-channel configuration. It sounds like I should’ve studied up some more, but even the name "dual channel" suggested this might be true, a la parallel resistors.
So, while I don’t recall what I was doing back in March, I’ll accept Pierre’s suggestion as the correct one…I was lacking sleep.
Sorry for the confusion,
Daryl
Too late…you shall be crucified 🙂
Daryl, in your lack of sleep 😉 I guess that you got confused with Raid 1 (mirrorring) for the hard drives that replicates the data in a second hard drive, for security. That setup does divide the total amount of available disk space by two.
Don’t worry, only thos who don’t try to halp do not make errors…
Well, at least learning the error of my ways will save me money in the long run, as I’ll not be buying twice as much memory as I thought I’d have to do for a dual-channel configuration. I’ve yet to find anything that provides a nice explanation of how dual-channel memory configurations work in contrast to single-channel, where the total memory in both is the same. I’ve not done a thorough search yet though, as most my time at the moment has been spent away from the PC…I’m visiting my parents for 2 weeks during the holidays.
Regards,
Daryl
