4GB Gets Cheap: 9 Dual-Channel Kits Compared


DDR2 SDRAM prices began dropping significantly last summer as the world prepared for DDR3-only Core i7 platforms, culminating in today’s ultra-low-priced, four-gigabyte dual-channel kits. For as little as $25, users of this older technology can step up to memory levels that had been reserved for only the upper echelon of last-year’s buyers.
Who needs 4.0 GB RAM? At these prices, does it really matter? Most systems eventually get clogged up with rarely used programs such as second or third instant messengers, redundant spyware blockers, and other once-useful tools that have become parasites while users, still mindful of the program’s former effectiveness, often don’t want to bother removing. The accumulation of junk can affect any operating system.


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4GB Gets Cheap: 9 Dual-Channel Kits Compared : Introduction - Tom's Hardware

That is a great read nigel.......

i think RAM is arguably the biggest deciding factor over how your PC runs, & at the price DDR2 is these days its a MUST to fill your board to capacity, this i7 DDR3 era has allowed the DDR2 user to benifit from some AMAZING prices & the icing on the cake is the fact that DDR2 is still in its prime!!!!

you can never have too much RAM, especially with vista...

SK

good read. Although im suprised they didnt sample corsair's xms2c4. Ive stuck with the same corsair 'c4' ram for a few years now since i dont like overclocking, the 4-4-4-12 timings on the corsair make it appealing despite the price tag.

Here's a good overview of DDR Ram as explained by SkunkSmash

DDR RAM Explained

I just got my 2x2GB Corsair Dominators PC2-8500C5D's for $79.99 on newegg.com and it has a $40.00 MIR.. I also got 15% cashback with paypal.. so I ended up paying like $28.99 for the entire kit.

they are currently running 1066 MHz with 5-5-4-15-22 and I've yet to try and overclock it. but I will soon. as I OC everything. lol

From:
Compaq / Hewlett Packard ( HP ) Presario SR5027UK - Memory ( RAM ) Upgrade from Orca Logic Ltd
Memory Details for Compaq / Hewlett Packard ( HP ) Presario SR5027UK

Standard Memory :	256MB or 512MB or 1GB or 2GB (Removable)
Maximum Memory :	2GB
Total Memory Slots :	2
Memory Type :	DDR2 PC2-4200 (533MHz) DIMM
Notes :	MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of Dual Channel Mode.

It looks like your PC can only take a maximum of 2GB at 533 (PC-4200)