Hello,
I bought 2x 2Gb sticks of ram for my Powermac G5 today which takes PC4200 533MHZ ram.
When i go home today and i installed it, In system profiler it says PC3200 ram yet my other rams a PC4200 now is there a speed difference here? because i did pay for PC4200 not 3200!
Thanks very much.

Pic here

also: isn't pc3200 400mhz ram hence it's not running at full speed in my machine?
sorry people i'm just a little angry as i spent a lot of money.

from what i understand they gave you the wrong ram ? 1 of the 2 is 3200 instead of 4200 ? but you paid for 2 4200

If you paid for PC4200 and they are detected as PC3200, then you must of got the wrong ones. Pull out the chips, look at the markings on them and do a bit of a google of the information presented on any labels or etc. You might find a match indicating they are indeed PC3200

d4mk: yep thats exactly it.
Yep i paid for 4200 ram yet according to this it's 3200.
I'll take it out now and take a look at it.
But there is a speed diff between 3200 and 4200 right?
thanks

Yes PC3200 is indeed different to PC4200.

PC3200 = 400mhz
PC4200 = 533mhz.

Yep different. If you paid for PC4200 then time to confirm if the chips are mislabelled or not.

I just took out the ram and looked at it,
On the ram the sticker says PC4200 2Gb yet it will only show up as PC3200 so i take it the ram has been mislabled!

Hang on - doesn't PC3200 denote DDR1 RAM and PC4200 DDR2?

So I'm a bit confused.

Also, from your pic it appears that your PC3200 modules are being detected at a lower latency 2-8-8 than the PC4200 modules (4-4-4). I'd imagine that the RAM probably is fine, just misreported under your G5, which Macs can often do. In short = if not crashing, and your machine is still performing well I wouldn't be too fussed. Do a MemTest OS X test + XBench RAM throughput test to see what happens before/after installing RAM.

JB

i changed the slots booted in to 2 different os's and still the same.
i'll do the tests now and i'll write back.

system profiler does not lie - you have been dudded irrespective of what labelling on ram sez.

I'd be going back to store together with receipt and politely but firmly asking for replacement memory

I just contacted the store so they give me a replacement no questions asked!
I ran xbench i got this ,

Results 140.09
System Info
Xbench Version 1.3
Physical RAM 5632 MB
Model PowerMac11,2
Processor PowerPC G5x2 @ 2.30 GHz
L1 Cache 64K (instruction), 32K (data)
L2 Cache 1024K @ 2.30 GHz
Bus Frequency 1 GHz
Drive Type Maxtor 6L250S0 Maxtor 6L250S0
Memory Test 140.09
System 141.61
Allocate 157.07 576.80 Kalloc/sec
Fill 223.45 10864.43 MB/sec
Copy 96.69 1997.04 MB/sec
Stream 138.60
Copy 137.52 2840.41 MB/sec [G5]
Scale 133.88 2766.01 MB/sec [G5]
Add 139.74 2976.71 MB/sec [G5]
Triad 143.61 3072.19 MB/sec [G5]

So i guess it's alright but non the less ill go get a replacement.
thanks everyone for the help it's highly valued.