P4PE 1GB Memory Modules

  • Thread starter Thread starter Clive Graven
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Clive Graven

I've just purchased 2x1GB memory modules for £97.50 each (+VAT etc) from
www.scan.co.uk and they didn't work in my P4PE. After closer inspection of
the chips and the ASUS website it seems this is because the chips are 16
chip (8 per side).

The price was good and the 1GB size was too.. shame they have to go back.
Does anyone know where to get 1GB modules which work? (not too expensive is
also a requirement!)

FYI the modules are "Mac Ae25D1284 1G DDR PC333"

Thanks

Clive
 
Why don't you just ask Scan if they have 1Gb modules that are guaranteed to
work on the 845PE chipset?

John S.
 
"Clive Graven" said:
I've just purchased 2x1GB memory modules for £97.50 each (+VAT etc) from
www.scan.co.uk and they didn't work in my P4PE. After closer inspection of
the chips and the ASUS website it seems this is because the chips are 16
chip (8 per side).

The price was good and the 1GB size was too.. shame they have to go back.
Does anyone know where to get 1GB modules which work? (not too expensive is
also a requirement!)

FYI the modules are "Mac Ae25D1284 1G DDR PC333"

Thanks

Clive
Click to expand...

First of all, did you try plugging just one of them in, with all
other slots empty ? There is nothing particularly wrong with 16
chips (8 per side) as such, except if the chips are "stacked".
Stacking can either occur inside the plastic package of the
chip, or you can actually see two devices sitting piggybacked
on top of one another. The P4PE might be able to drive one module,
but not two, due to the doubled loading of the address bus.
Considering the low price of the module, there has to be some
shortcut taken.

The Kingston site is still trying to sell their 1GB DDR333 module
for the P4PE, for $800. It would be cheaper to buy a P4P800 plus
4 x 512 ordinary modules, than to buy the Kingston modules.

http://www.ec.kingston.com/ecom/con...sp?SysID=+12927+&distributor=0&submit1=Search

Crucial lists a cheaper PC2100 module for the P4PE. They also make
a PC2700 1GB module, but the PC2700 isn't listed as compatible with
the P4PE.

Mushkin is still selling only stacked modules, and motherboards
using the 845PE Northbridge don't seem to be able to use any of
the 1GB modules they sell.

If you buy cheap 1GB modules without detailed specs, I'm willing
to bet that most of the time they won't work. Samsung has had the
necessary chips to make a 1GB module available since January, but
they still don't seem to be available at a mainstream supplier
for a reasonable price. Maybe there are still production problems.

HTH,
Paul
 
First of all, did you try plugging just one of them in, with all
other slots empty ? There is nothing particularly wrong with 16
chips (8 per side) as such, except if the chips are "stacked".
Stacking can either occur inside the plastic package of the
chip, or you can actually see two devices sitting piggybacked
on top of one another. The P4PE might be able to drive one module,
but not two, due to the doubled loading of the address bus.
Considering the low price of the module, there has to be some
shortcut taken.

The Kingston site is still trying to sell their 1GB DDR333 module
for the P4PE, for $800. It would be cheaper to buy a P4P800 plus
4 x 512 ordinary modules, than to buy the Kingston modules.

http://www.ec.kingston.com/ecom/con...sp?SysID=+12927+&distributor=0&submit1=Search

Crucial lists a cheaper PC2100 module for the P4PE. They also make
a PC2700 1GB module, but the PC2700 isn't listed as compatible with
the P4PE.

Mushkin is still selling only stacked modules, and motherboards
using the 845PE Northbridge don't seem to be able to use any of
the 1GB modules they sell.

If you buy cheap 1GB modules without detailed specs, I'm willing
to bet that most of the time they won't work. Samsung has had the
necessary chips to make a 1GB module available since January, but
they still don't seem to be available at a mainstream supplier
for a reasonable price. Maybe there are still production problems.

HTH,
Paul
Click to expand...

I just took a look at pricewatch.com and I see a couple of things
in the 1GB PC2700 section. One company is selling a DIMM with
(16) 128M x4 which would have the same loading as a double sided
DIMM. Only the chip select (and maybe other control signals)
would be driving more than the normal loads, and maybe that
or a clocking limitation is the problem.

At the site ms4me.com, they list an "OEM" module, which apparently
uses 64M x8 parts.

http://www.ms4me.com/ddrpc2700pc333.html
http://www.ms4me.com/oem1gddr3318.html ($162 only 1 year warranty)

http://www.ld-technology.com/one_prod.php?pid=021400 ($173 oem lifetime)

The rest of the Pricewatch list seems to be a bunch of Yahoo.com
based stores, all selling the same thing, each store not providing
info on what type of chips are used. So, the couple of links above
are the only ones that come close to being legitimate (always
check resellerratings or a similar site, to verify that these
businesses are for real and give good service).

Post back with what you end up buying.

Paul
 
Thanks Paul

Tried putting single sticks in and in different slots and no success.
Would PC2100 be noticably slower than PC2700 memory? I've seen 1GB PC2100
around for a while at good prices.

Changing my motherboard has certainly be the best answer since week 2 of
owning this damn motherboard! I paid a good amount of money for a well
recommended motherboard with a lot of high recommendations behind it -
though I did my homework. Turns out you can't easily get the memory you need
to go past 1GB of RAM! I might just put up for a while and spend my money on
a couple of SATA WD Raptor 10K Hard disks as thats where my current bottle
neck is (RAID 0 should give some performance!!). Memory would have reduced
my disk queues for paging when I use music apps it would also have let me
run up lots of VMware machines for my work.

Cheers

Clive
 
Just bought 1G DIMM board with AE25D1284 chips on it, but manufacturer
on chips as well is on the board is GET, not MAC(!) and it does not
work with GIGABYTE 8PE800 Ultra on 845PE chipset - 5 short beeps, then
countinuous short beeps.
 
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