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I am looking to add an extra 4 GB RAM to my Dell Inspiron 15 i3 laptop. I am not able to find the exact RAM in India. Which one should I prefer then, Crucial or Transcend or Corsair? These seems to be common on Indian e-commerce platforms. Most of these brands have similar offering.

Here is CPUID report for current RAM module.

DIMM #              1
SMBus address       0x52
Memory type     DDR3
Module format       SO-DIMM
Manufacturer (ID)   Hyundai Electronics (AD000000000000000000)
Size            4096 MBytes
Max bandwidth       PC3-12800 (800 MHz)
Part number     HMT351S6EFR8A-PB  
Serial number       125356BA
Manufacturing date  Week 06/Year 13
Number of banks     8
Nominal Voltage     1.35 Volts
EPP         no
XMP         no
AMP         no
JEDEC timings table     CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1        5.0-5-5-14-19 @ 380 MHz
JEDEC #2        6.0-6-6-16-22 @ 457 MHz
JEDEC #3        7.0-7-7-19-26 @ 533 MHz
JEDEC #4        8.0-8-8-22-30 @ 609 MHz
JEDEC #5        9.0-9-9-24-33 @ 685 MHz
JEDEC #6        10.0-10-10-27-37 @ 761 MHz
JEDEC #7        11.0-11-11-28-39 @ 800 MHz
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  • Unfortunately, hardware recommendation questions are off-topic as they tend to become obsolete quickly and often aren't useful to other readers. Instead of asking for a specific product, you should ask about how to find a particular device that meets your needs. – bwDraco Jan 25 '15 at 23:23
  • I understand your emotions, but I would have preferred answer like what I blogged at takneekivichar.wordpress.com/2015/02/03/… after purchase. Thanks anyway, I have figured out what to look for. – Atul Kumar Feb 4 '15 at 19:26
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The easiest solution would be to just buy an 8GB Dual channel kit. If that's not an option then I would suggest using a DDR3 PC3-12800 using the 800Mhz timings as your point of reference when searching for additional memory, since that is the actual speed of the memory. I would think that most any memory module of PC3-12800 would work.

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  • Concur with Michael. I know it will be more expensive, but I would avoid mixing models of different brands, even if the specs are compatible. – Jamie Hanrahan Jan 25 '15 at 20:54
  • I bought a corsair 4 GB exactly matching my current one. corsair.com/en/… Its working fine as of now. – Atul Kumar Feb 4 '15 at 19:28
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Any memory module that conforms to the specs below will work:

Memory type         DDR3 PC3L-12800 (800 MHz)
Module format       SO-DIMM
Size                4096 MBytes (4 GB)
Voltage             1.35 Volts
Timings             11-11-11-28-39 @ 800 MHz

I would recommend you to pick whichever ones you can find at the lowest price.

Otherwise, use the Crucial Memory Advisor to find specific model number. You will need a four digit code, "Dell Inspiron 15" wasn't enough for me to find your exact model (you should be able to find this product code on a label under your laptop).

Example product: 4GB DDR3 PC3-12800 Unbuffered NON-ECC 1.35V - CT51264BF160B

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  • Crucial is not officially supported in India so I went with corsair.com/en/… . Crucial Advisor did help me. I cannot upvote since I need 15 reputations ;-) Thanks anyway. – Atul Kumar Feb 4 '15 at 19:30

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