Problems? See this thread at archive.org.
I'm posting a response I got from HP tech support, its like they didnt even read my question. I don't even think they know what dual channel memory is.
MY original question:
"I currently have 1 stick of ram in my computer a
512MB. I am going to upgrade to a total of 1024MB's of ram but I want
to make sure I will be able to use the dual channel ability of my
motherboard. I know for dual channel I need 2 sticks of ram of the same
speed and size. If I was to order ram other then HP brand but it was
still PC2700 2.5cas 512MB would I then be able to use dual channel
ability of my computer? I don't want to buy HP ram because it is 50$
more then all the other name brand ram company's. I'm considering
Kingsinton, or a Mircon brand."
Their response:
"Dear Christopher,
Thank you for contacting HP Total Care.
I see that you need memory upgrade information for your Compaq Presario
R3000T (DP218AV) CTO notebook PC.
Christopher, PC2100 (DDR266) memory, PC2700 (DDR333) memory, and PC3200
(DDR400) memory are all types of Double Data Rate (DDR) SDRAM. The
varying numbers refer to the different speeds of memory your computer
was designed for.
Let's take a look at PC2100 (DDR266) to break it down simply.
PC2100 refers to the bandwidth of the memory. A PC2100 module has the
bandwidth of 2.1GB/sec therefore it is referred to as PC2100.
DDR266 refers to the effective front-side bus speed of your system.
While your DDR system or motherboard may operate a 133MHz front-side
bus, its effective front-side bus speed is 266MHz because DDR
effectively doubles the amount of data transferred per cycle that a
non-DDR system would.
The same holds true for PC2700 (DDR333) which has a bandwidth of
2.7GB/sec and is designed for use in systems and motherboards which
require a 166MHz front-side bus, with an effective front-side bus speed
of 333MHz.
PC3200 DDR (DDR400) has a bandwidth of 3.2GB/sec and is designed for use
in systems and motherboards which require a 200MHz front-side bus with
an effective front-side bus speed of 400MHz.
Though DDR memory was designed to be backward compatible (meaning you
can use PC2700 DDR in a computer designed to use PC2100 DDR or
vice-versa), we always recommend that you use the memory that your
Presario is designed for.
I hope this information is clear and helpful. If you need any help,
please get back to us. I will try my best to solve the problem."
I just sent this back:
"I'm sorry if I wasen't clear enough but I'm not really looking for an
explaination of the memory speed. I'm trying to make sure my upgrading the
memory will also activate the dual channel ability of the motherboard. If
you are not familar with what "dual channel" means please reply to that
effect. what it dose it doubles your memory speed. Now I know the ram is
already DDR PC2700 and runs at 333MHz. If you have 2 sticks of ths same
speed and size ram and a motherboard that supports dual channel memory then
your suppose to be able to double the ram speed one more time putting this
system up to 666MHz bus speed. I just want to make sure the BIOS will on
its own turn on the dual channel settings sense from the end users side we
have no BIOS controls we can adjust. I've looked up the motherboard from
the ATI website and it dose support dual channel memory. The motherboard is
a Radeon 9100 IGP (RS300)"
Compaq R3000T (CTO)
P4 Desktop 3.0GHz w/HT
1 X 512MB RAM
Radeon 9600 128MB
60GB 5,400 RPM HD
AquaMark3: 24,257, 3DMark03: 3,115
-
[
] Being the idiot that i am, does this actually hold true? Makes sense, but why do they always overcharge on dual channel memory?
Look at what HP tech support says....
Discussion in 'HP' started by DaGreek, Sep 9, 2004.
