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mark4man
08-11-2004, 08:35 PM
People,

Called my PC mfg. (Dell) hoping to beef up on RAM cheaply (I do a lot of work in digital audio multitracking...& naturally want the best performance possible out of my machine.)

They informed me that my box has two 256MB sticks of NECC (Non Error Correction Code) RDRAM; & that they didn't mfg. NECC anymore; & that I would have to remove the two NECC sticks & replace them with ECC (Error Correction Code) sticks because the two types cannot be mixed; & they recommended two 512MB sticks, to the tune of 550 bucks.

My MoBo is an Intel 850E; & Intel says it has 4 RDRAM RIMM* Sockets; & supports PC800 RDRAM (from 128MB to 2GB.) The MCH (Memory Controller Hub) works via Integrated Dual Direct RAMBUS* technology.

I'm running SONAR XL on the Dell (8250) w/ a P4 (2.5GHz - 512 KB L2 Cache, 533 MHz FSB) & a dedicated audio drive (both drives are ATA/133.) My existing memory is 512 MB PC1066 RDRAM (this last spec...which is from my original packing list...I find interesting...because...Dell says I have PC1066 in the box now...Intel says that board supports PC800.)

So, I'm wondering:

Why can't I mix?
If I can't...can I just pick up another 512MB NECC stick from a reputable mfg. & throw it in the box?
What's the difference between NECC & ECC anyway (& why the frick does memory need error correction to begin with?)
Do I really need ECC?
What should I do?

Thanks,

mark4man

PrntRhd
08-11-2004, 09:18 PM
That is Rambus memory on a $4,300 high-end computer, it doesn't come cheap and the normal vendors don't make Rambus anymore. You do need matched pairs of RIMMs.
I hope this helps:

memorystock (http://www.memorystock.com/Rdram-rambus.htm)
comtread (http://www.comtread.com/rdram.html)
tomshardwarebizrate (http://tomshardware.bizrate.com/buy/products__att20--565-,cat_id--407,keyword--samsung.html)

mark4man
08-14-2004, 10:02 AM
PrntRhd,

Thanks much,

mark4man

PrntRhd
08-14-2004, 10:12 AM
You are welcome, hope that works out for you.
:)

mark4man
08-14-2004, 11:30 AM
Follow-up...

Found Samsung 256MB PC1066 32ns 16-Bit 184 Pin 533MHZ RAMBUS NECC RDRAM Sticks for $105 each @ MemorySuppliers.com, w/ a 30 day money back gaurantee...

Leave the 2 existing sticks in the MoBo...pop 2 new ones in (since installation "pairs" are required)...giving me 1GB...

How's that sound?

mark4man