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240-pin DIMM
A DIMM, or dual in-line memory module, comprises a series of dynamic random access memory integrated circuits (DRAM chips). These modules are mounted on a printed circuit board and designed for use in personal computers, workstations and servers.
DDR2 SDRAM is a double data rate synchronous dynamic random access memory interface. It supersedes the original DDR SDRAM specification and the two are not compatible. In addition to double pumping the data bus as in DDR SDRAM (transferring data on the rising and falling edges of the bus clock signal), DDR2 allows higher bus speed and requires lower power by running the internal clock at one quarter the speed of the data bus.
240-pin DIMMs are used to provide DDR SDRAM memory for desktop computers and servers. Standard 240-pin DIMMs are available in PC2-4200 DDR2 SDRAM, PC2-5300 DDR SDRAM, PC2-6400 DDR SDRAM, and PC2-8500 DDR SDRAM.
To use DDR2 memory, your system motherboard must have 240-pin DIMM slots and a DDR2-enabled chipset. A DDR2 SDRAM DIMM will not fit into a standard SDRAM, DDR, or DDR3 DIMM socket.. (Information about which memory technology your system uses is included in the specific brand/model section of our website.)
The number of black components (DRAM chips) on a 240-pin DIMM can vary, but it always has 120 pins on the front and 120 pins on the back, for a total of 240. 240-pin DIMMs are typically 5.25 inches long and 1.25 inches high, though the heights can vary. While 240-pin DDR2 DIMMs and 184-pin DDR DIMMs are approximately the same size, 240-pin DIMMs have the notch positioned slightly differently, which prevents DDR2 memory from being installed in a non-DDR2 compatible motherboard.
Several form factors are commonly used in DDR2 DIMMS. When first introduced, they were created with a "Low Profile" (LP) height of ~1.2" (31.2mm). These fit into vertical DIMM sockets for a 1U platform. With the advent of blade servers, the LP form factor DIMMs have once again been often angled to fit in these space-constrained boxes. This led to the development of the Very Low Profile (VLP) form factor DIMM with a height of ~.72" (18.3 mm). The DDR3 JEDEC standard for VLP DIMM height is 18.75mm.
RamCity acknowledges the contributors to the Wikipedia article DDR2 SDRAM. Some of the text from that article has been reproduced here.
Specifications
| Form Factor | 240-pin DIMM |
|---|---|
| Series | ValueRam |
| CAS Latency | CL6 |
| Voltage | 1.8V |
| ECC | ECC |
| Speed | DDR2-800 / PC2-6400 |
| Brand | Kingston |
| Size | 1GB |
| Pieces in Kit | 1 |
Free Shipping, Payment, Returns and Replacements
- Free Shipping and Delivery
- Payment Options and Pricing
- Warranty Replacements and Refunds
- Stock Levels
- GST and Import Duties
Free Shipping and Delivery
- FREE Shipping
- We offer free, fast shipping to all locations in New Zealand, regardless of order size.
- Delivery Times
- All Kingston brand products are shipped directly from our supplier in Auckland via NZ Couriers or CourierPost.
- All non-Kingston products (RamCity, Samsung, Hynix, etc), are shipped from our central distribution centre in Sydney, Australia via FedEx. (Additional GST and import duties may apply for orders valued over $400)
- Delivery times for Kingston products are usually overnight. For RamCity brand products delivery typically takes 2-3 business days.1 All deliveries are made Monday to Friday 8am-5pm, excluding public holidays.
- We cannot ship to PO Boxes, as a signature upon delivery is required.
- Please allow an additional business day if your order is placed after 1pm NZT.
- Payment Options
- We accept Mastercard, Visa and PayPal. No surcharges apply.
- No Payment Terms are available.
- Pricing
- All pricing is shown in NZD.
- All payments are processed in NZD.
- Warranty Replacements and Refunds
- Full details of our comprehensive and convenient return policy are here. Back to the top ↑
- Stock Levels
- Stock levels shown on our website are updated early each morning.
- Most stock is on hand and is ready for immediate shipping once your payment has been cleared.
- Products requiring back order are marked 'Ships in xx Days'.
- For up-to-the-minute stock levels, please contact our Customer Service Team.
- If your product is not in stock, then we will back order it with our usual weekly stock order (if it's a RamCity brand product), or order it immediately from our suppliers. Generally it takes around 7 days to fill back orders, although some hard-to-get items may take longer. We will notify you of any unexpected delays.
- Although your credit card is charged up-front, you are able to cancel the order at anytime and have the transaction reversed. We do not charge any cancellation or restocking fees.
- GST and Import Duties
- All prices quoted on RamCity.co.nz are exclusive of GST.
- As we are an Australian company trading in New Zealand we are currently not required to collect GST.
- Orders for Kingston products ship direct from our supplier in Auckland, so import duties can never apply, regardless of order size.
- IMPORTANT: Orders of non-Kingston brand products (such as RamCity, Micron, Samsung, Hynix, etc), or orders with both Kingston and non-Kingston products combined, will ship from our Sydney distribution centre. GST and import duties may be leviable if the value of the order exceeds NZD$400. Read more about this on the NZ IRD website
- If any duty or taxes are applicable, then NZ Customs or the shipping carrier will contact you.
1. In rural or remote areas, please allow an extra 2 business days.
Payment Options and Pricing
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Frequently Asked Questions
Upgrading Memory
- Do I have to install the memory in pairs (dual channel)?
- What do the different Memory speeds mean?
- Your site shows many different memory upgrade options for my computer - which is the best?
- What if I don't know my computer/motherboard brand and model, and how do I find out the configuration of the currently installed memory modules?
- Will my system recognise the maximum RAM upgrade?
- Will adding more memory make my computer go faster?
- How much memory do I need for Windows Vista or Windows 7?
- Can I still upgrade the memory in my computer if it is old or not well known?
- My computer accepts two or more different speeds of memory (ex: PC2100, PC2700, and PC3200), which one should I buy?
Quality and Compatibility
- Are RamCity upgrades guaranteed compatible with my existing memory?
- Are RamCity brand upgrades still good Quality?
- Why is RamCity brand memory sometimes much lower in price than Kingston?
- Who is Kingston Technology?
- Will installing a Memory upgrade from RamCity affect my original manufacturer warranty?
Payment and Delivery
Installation
Technical Terms Explained
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