SDRAM is short for Synchronous DRAM and operates at 66Mhz, 100Mhz and 133Mhz speeds. This is approxiamtely three times faster than FPM (Fast Page Mode) DRAM and about twice as fast as EDO (Enhanced Data Output) DRAM. Manufactured using premium brand chips from Samsung, Hyundai, NEC etc, OFFTEK offers PC66, PC100 and PC133 modules.
If you are unsure of the SDRAM memory you require for your machine from the list below please email support@offtek.co.uk. One of our support team will then be happy to confirm compatibility for you.
The following information is provided to assist with the installation of 72 Pin Simms, 168 Pin Dimms, 184 Pin Dimms/Rimms and 240 Pin Dimms.
General Precautions
1.
Turn off the computer and disconnect the AC power cord.
2.
Remove the computer
cover following the instructions located in your system owners manual.
3.
Before installing your
memory, discharge any static electricity by grounding yourself to a metal object, such as the casing on your computer.
4.
Locate the area where the memory is to be installed and remove any peripherals that may be obstructing access to the memory sockets.
5.
All modules must only be handled by their edges and should not be handled by the chips themselves.
6.
Remove any existing memory if necessary to install the new memory products
7.
72 Pin memory is generally installed in pairs but 168 Pin Dimms can normally be installed one at a
time. Please refer to your owners manual for specific information.
72 Pin Simm Memory Installation Guidelines
1.
Align the metal connectors of the memory
module with the metal connectors of the simm socket on the motherboard. Be sure
that the simm is aligned properly and that all pins line up correctly. If the
simm does not fit, turn it around as simms are keyed and will only fit in one
way round. 168 Pin Dimms have two cutouts along the row of pins and 184/240 Pin Dimms
have only one cutout.
2.
Insert the module at a 45 degree angle and
carefully grasp the two ends of the module and gently snap into place into the
upright position.
3.
Check to make sure that both retaining
posts have locked onto the module and are holding it securely in place.
4.
Replace the computer cover and reattach
cables and peripherals..
5.
Update the computers memory configuration if required as outlined in the computer users manual
Align the metal connectors of the memory module with the metal connectors of the dimm socket on the motherboard. Be sure
that the dimm is aligned properly and that all pins line up correctly. If the dimm does not fit, turn it around as dimms are keyed and will only fit in one way round.
2.
Make sure that the Dimm retaining clips are open and firmly press the Dimm down into the socket and lock the retaining clips in place.
3.
Replace the computer cover and reattached cables and peripherals..
4.
Update the computers memory configuration if required as outlined in the computer users manual
The following information is provided to assist with the installation of 72 Pin SoDimms, 144 Pin SoDimms and 200 Pin SoDimms. Specific memory upgrade information particular to your model of
computer will be detailed in your users manual.
General Precautions
1.
Turn off the computer and disconnect the AC power cord.
2.
Remove the computer
cover following the instructions located in your system owners manual.
3.
Before installing your
memory, discharge any static electricity by grounding yourself to a metal object, such as the casing on your computer.
4.
Locate the area where the memory is to be installed.
5.
All modules must only be handled by their edges and should not be handled by the chips themselves.
6.
Remove any existing memory if necessary to install the new memory products
SoDimm Memory Installation Guidelines
1.
If the SoDimm is being installed into a
notebook or hand-held computer that has a battery installed, then ensure that
the battery is removed before beginning installation.
2.
72 Pin SoDimms have a small cutout on the
bottom of the module next to the pins. This ensures that the modules can only
be installed one way round. 144 Pin and 200 Pin SoDimms have a cutout along the pins which
again only allows the module to be inserted one way round.
3.
Insert the module at a 30 degree angle and push the module firmly but gently into the slot until the security latches on the sockets have locked into place on each side of the module.
4.
Replace the computer cover and reattach cables and peripherals..
5.
Update the computers memory configurationif required as outlined in the computer users manual
The following information is provided to assist with the installation of 72 Pin Simms, 168 Pin Dimms, 184 Pin Dimms/Rimms and 240 Pin Dimms.
General Precautions
1.
Turn off the computer and disconnect the AC power cord.
2.
Remove the computer
cover following the instructions located in your system owners manual.
3.
Before installing your
memory, discharge any static electricity by grounding yourself to a metal object, such as the casing on your computer.
4.
Locate the area where the memory is to be installed and remove any peripherals that may be obstructing access to the memory sockets.
5.
All modules must only be handled by their edges and should not be handled by the chips themselves.
6.
Remove any existing memory if necessary to install the new memory products
7.
72 Pin memory is generally installed in pairs but 168 Pin Dimms can normally be installed one at a
time. Please refer to your owners manual for specific information.
72 Pin Simm Memory Installation Guidelines
1.
Align the metal connectors of the memory
module with the metal connectors of the simm socket on the motherboard. Be sure
that the simm is aligned properly and that all pins line up correctly. If the
simm does not fit, turn it around as simms are keyed and will only fit in one
way round. 168 Pin Dimms have two cutouts along the row of pins and 184/240 Pin Dimms
have only one cutout.
2.
Insert the module at a 45 degree angle and
carefully grasp the two ends of the module and gently snap into place into the
upright position.
3.
Check to make sure that both retaining
posts have locked onto the module and are holding it securely in place.
4.
Replace the computer cover and reattach
cables and peripherals..
5.
Update the computers memory configuration if required as outlined in the computer users manual
Align the metal connectors of the memory module with the metal connectors of the dimm socket on the motherboard. Be sure
that the dimm is aligned properly and that all pins line up correctly. If the dimm does not fit, turn it around as dimms are keyed and will only fit in one way round.
2.
Make sure that the Dimm retaining clips are open and firmly press the Dimm down into the socket and lock the retaining clips in place.
3.
Replace the computer cover and reattached cables and peripherals..
4.
Update the computers memory configuration if required as outlined in the computer users manual
A 168 Pin Dimm is approximately 5 ¼ inches in length and 1 inch
in height and contains 84 Pins on either side. It is referred to as a 168 Pin Dimm because it reads both sides of the
Dimm simultaneously. The Dimm is different from the Simm in that it has two notches on the contact edge and inserts into
the socket straight down, without the need for tilting. Dimm sockets also have release tabs at each end which acts as a
lever to push the module up out of the socket during removal.
There are several different flavours of Dimm, including FPM, SDRAM (7, 8,10,12 Megaherz), EDO (Buffered, Non-Buffered,
3.3V & 5V). ECC (Error Correction Code) and Registered. It is imperative to select the correct type of module when upgrading
and memory search facility located on our home page will identify the correct upgrades for your model.
As a general rule, SDRAM is backwards compatible,
therefore a PC133 Dimm can operate at 133Mhz, 100Mhz and 66Mhz. Certain systems though that require 66Mhz SDRAM modules
will not accept PC100 or PC133 modules. In addition to the speed, the chip configuration of the module is also important.
Use our memory search facility located on our home page at (http://www.offtek.co.uk) for guaranteed compatibility.
A 144 pin SoDimm is approximately 2.625 inches in length and 1 inch
high and are commonly found in laptop computers. Each 144-pin SODIMM provides a 64-bit data path, so they are installed
singly in 64-bit systems. 144-pin SODIMMs are available in EDO, PC66, PC100 and PC133 SDRAM.
A 144 Pin SDRAM MicroDimm is approximately 1.545" x 1 inch
in height and is designed for laptops. Each 144-pin MicroDimm provides a 64-bit data path, so they are installed
singly in 64-bit systems. 144-pin MicroDimm are available in PC100/PC133 SDRAM.
Items dispatched by Royal Mail 1st Class using their PacketPost service are normally delivered within 1-2 working days. 95% are delivered within this timescale but please allow 3-4 working days. A signature may be required on delivery.
Delivery to the Scottish Highlands, Northern Ireland, Outer Hebrides, Orkney Islands and Channel Islands may take up to an additional 3 days.
If you are unable to accept delivery then Royal Mail will leave a card stating the time and date they attempted delivery and details as to the current location, which is normally the local main post office. Your parcel will be held for seven days at the local post office and will then be returned to OFFTEK.
2nd Class Royal Mail PacketPost
Items dispatched by Royal Mail 2nd Class using their PacketPost service are normally delivered within 3-4 working days. 95% are delivered within this timescale but please allow 5-6 working days. A signature may be required on delivery.
Delivery to the Scottish Highlands, Northern Ireland, Outer Hebrides, Orkney Islands and Channel Islands may take up to an additional 3 days.
If you are unable to accept delivery then Royal Mail will leave a card stating the time and date they attempted delivery and details as to the current location, which is normally the local main post office. Your parcel will be held for seven days at the local post office and will then be returned to OFFTEK.
UK Next Day Delivery by 9AM, 1PM or Saturday Delivery
These items are dispatched by Royal Mail Special delivery. Delivery to the majority of UK postcodes is guaranteed by 9AM, 1PM or on Saturday depending
on the service you have selected.
If you select Saturday delivery on any day of the week, then your order will be dispatched on Friday for
delivery by 1PM on Saturday. Please note that the 9AM service is not available on a Saturday.
Due to exceptional circumstances such as adverse weather conditions etc then your item may be delayed. Exclusions are as follows: -
Scottish Highlands - Next Day by 17:30 Shetlands Islands - Two Working Days Outer Hebrides - Two Working Days Sark & Hern Channel Islands - Two Working Days Orkney Islands - Three Working Days
If you are out when delivery is attempted then Royal Mail will leave a card stating the time and date they attempted delivery and details as to the current location, which is normally the local main post office. Your parcel will be held for seven days at the local post office and will then be returned to OFFTEK.
Ireland (Eire)
All items dispatched for delivery to Ireland (Eire) are sent by Royal Mail using their Airsure service. Please allow 2-3 days for delivery.
International Delivery
All items dispatched for delivery outside of the UK are sent by Royal Mail using their Airsure or Swiftair Registered service. Please allow between 3 and 10 working days for delivery depending on the country of destination.
Please click here to view details of our returns and refunds policy.
In Stock
This indicates that this item was in stock with OFFTEK as of this morning. If an item is ordered that is indicated
as in stock and due to high demand all stock has been allocated and the order cannot be dispatched the
same day, then we will inform you via phone or email of this fact.
In Stock (1-2D)
This item is in stock with the manufacturer and takes 1-2 working days to acquire once an order is received.
This item is then dispatched using the delivery method selected at the time of ordering.
In Stock (3-5D)
This item is in stock with the manufacturer and takes 3-5 working days to acquire once an order is received.
The item is then dispatched using the delivery method selected at the time of ordering.
5-15 days
This item is not currently in stock with the manufacturer and is in short supply and will take approximately 5-15 days to obtain.
This item is then dispatched using the delivery method selected at the time of ordering.
Lifetime Warranty
Feel confident that your memory will last a lifetime. Our lifetime warranty guarantees that if your memory should ever fail we will replace
or repair the product free of charge. Please note that the lifetime warranty refers only to memory modules and not flash memory or storage products.
Please see the individual 'product details' for warranties specific to each product. For complete warranty details please
see our Terms and Conditions
100% Compatibility
Every memory product matched specifically to your machine is individually tested to guarantee reliability and 100%
compatibility with your computer and operating system.
30000+ Products
We have over 30000 different memory upgrade options for PC's, Notebooks, Workstations, Servers, Printers, Digital Cameras, Fax Machines, Raid Servers, Mobile Phones, Network Routers and Hand-Held Computers. A huge database of information allows us to provide memory upgrades for almost any device.
Premium Brand Chips
Not all memory is the same. Our memory is manufactured using premium brand chips ('grade 'A') from manufacturers including Samsung, NEC and Hyundai. This ensures the highest level of reliability and compatability. You may be able to buy cheaper memory but you will not be able to buy the same quaility of memory cheaper.
Free Technical Support
Our experienced & friendly technical support staff are happy to answer any questions regarding your memory upgrade installation or compatibility.
Large Stock Holding
Our large stock holding allows us to offer next day delivery on a wide range of products. We receive deliveries every day, therefore non-stock items are normally dispatched within 1-3 days.
How Much memory Do You require ?
Identify the typical applications that you use from the list below (Administrator, Executive or Professional) and then cross reference with your operating system from the table below. You will then be able to determine the amount of memory you require. Remember that the more applications you use, the more memory you will need. Please note that this information is provided as a guide only.
Administrator
Typically tasks include word processing, email, spreadsheets, Internet etc. Heavy users in this category will also be running graphical or presentation based software.
Executive
Typically tasks include project management, databases and Internet. Heavy users will also be involved in video conferencing and using large databases.
Professional
Typically tasks include web development, multimedia, photo or sound editing. Heavy users will also be involved in CAD, digital imaging and animation.
Administrator
Executive
Professional
Light-Med
Med-Heavy
Light-Med
Med-Heavy
Light-Med
Med-Heavy
Windows 95
16-32MB
32-48MB
32-64MB
64-96MB
64-128MB
128-256MB
Windows 98
32-128MB
128-256MB
32-128MB
64-256MB
128-384MB
384-512MB
Windows ME
64-256MB
256-512MB
64-256MB
256-512MB
128-384MB
384-512MB
Win 2000 Pro
64-128MB
128-256MB
64-192MB
192-512MB
64-512MB
512-1GB
Windows XP
128-384MB
256-512MB
128-768MB
768-1GB
256-1GB
1GB and above
Win NT 4.0
32-48MB
48-64MB
32-64MB
64-128MB
64-128MB
128-256M
Win NT Work
64-128MB
128-256MB
64-128MB
128-512MB
96-256MB
128-1GB
Mac O/S
48-96MB
96-128MB
48-96MB
96-128MB
64-512MB
512-1GB
Premium Brand Chips
Not all memory is the same. Our memory is manufactured using premium brand chips from manufacturers including Samsung, NEC, Hynix (Hyundai), Transcend and Buffalo.
This ensures the highest level of reliability and compatability. You may be able to buy cheaper memory but you will not be able to buy the same quality of memory cheaper. Please find
below a profile of some of the major manufacturers that are used by OFFTEK.
Samsung
As one of the world’s two largest memory (semiconductor) manufacturers,
Samsung has succeeded through its focus on advancing technology– particularly memory solutions.
The leader in memory for 13 years,Samsung makes the high-density
flash, advanced DRAM, graphics memory, SRAM and Multi-Chip Package (MCP) memory used inside
many computing and mobile electronics products from top suppliers around the globe. Samsung has
been called “the rare corporate giant that remains nimble on its feet,” (CNET, 4/25/06), designing
the high-end memory components that are bringing breakthrough capabilities to new generations
of irresistible handhelds and PCs.
Transcend - First and Largest UK Distributor
OFFTEK is proud to be one of the first and largest distributors of Transcend products in the UK, a relationship which first began in 1996.
Transcend is a global company with offices around the world. Their overseas offices were opened in California, USA (1990), Germany (1992), The Netherlands (1996), Japan (1997),
Hong Kong (2000), China (2000), UK (2005) and Maryland, USA (2005). Transcend is a strategically integrated Hi-Tech company, that not only designs, develops, and manufactures their
branded products, but also market and sell their own devices.
The corporate culture that exists within Transcend is one of professionalism and teamwork. As a declaration of their commitment to quality they implemented the Total Quality
Control concept throughout the company, and became the first memory module manufacturer in Taiwan and the second in the world to receive ISO 9001 Certification.
Transcend's Advanced R&D Teams have over 17 years of experience in developing quality state-of-the-art Hi-Tech products that are at the very cutting edge of technology. Their
commitment to R&D ensures that we will continue to produce superior quality innovative products keeping us at the forefront of our industry and leaving the competition far behind.
As a company Transcend can best be described as, a World-Class leader in the field of memory and consumer electronics, which brings you Tomorrow’s World, Today.
Hynix (Hyundai)
In 2006, Hynix (Hyundai) was the 7th largest semiconductor (memory) manufacturer (2006), yielding 2 billion dollars of net profit, with proven success and potential growth.
Year after year, with outstanding technological expertise and continuous investment on research, Hynix blazes a trail in the new field of semiconductor technology which has
evolved into nano-tech.
Moreover, with unwearying spirit of a pioneer, Hynix has claimed to be the leading company in various countries including China, the largest semiconductor market in the world and
it is strengthening its position.
SDRAM & PC 133 from Offtek, The Computer Memory Superstore
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