| RAM | 4 GB DDR3 |
|---|---|
| Memory Speed | 1333 MHz |
| Wireless Type | Radio Frequency |
| National Stock Number | 7025-01-626-2231 |
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From the manufacturer
This document describes ValueRAM's 512M x 64-bit (4GB) DDR3-1333 CL9 SDRAM (Synchronous DRAM), 1Rx8 memory module, based on eight 512M x 8-bit DDR3-1333 FBGA components. The SPD is programmed to JEDEC standard latency DDR3-1333 timing of 9-9-9 at 1.5V. This 240-pin DIMM uses gold contact fingers.
• JEDEC standard 1.5V (1.425V ~1.575V) Power Supply • VDDQ = 1.5V (1.425V ~ 1.575V) • 667MHz fCK for 1333Mb/sec/pin • 8 independent internal bank • Programmable CAS Latency: 9, 8, 7, 6 • Programmable Additive Latency: 0, CL - 2, or CL - 1 clock • Programmable CAS Write Latency(CWL) = 7 (DDR3-1333)
• 8-bit pre-fetch • Burst Length: 8 (Interleave without any limit, sequential with starting address “000” only), 4 with tCCD = 4 which does not allow seamless read or write [either on the fly using A12 or MRS] • Bi-directional Differential Data Strobe • Internal(self) calibration: Internal self calibration through ZQ pin (RZQ : 240 ohm ± 1%) • On Die Termination using ODT pin • Average Refresh Period 7.8us at lower than TCASE 85°C, 3.9us at 85°C < TCASE < 95°C • Asynchronous Reset • PCB: Height 0.740” (18.75mm) or 1.180” (30.00mm)
Compare with similar items
This Item  Kingston Technology (KVR13N9S8/4) 4GB 1333 MHz 240-Pin DDR3 SDRAM Memory Module |  |  |  |  |  | |
| Price | -36% $13.99 List: $21.99 | $38.96 | $19.99 | $39.99 | $13.78 | $15.99 |
| Delivery | Get it May 22 - 29 | Get it as soon as Tuesday, May 21 | Get it as soon as Tuesday, May 21 | Get it as soon as Tuesday, May 21 | Get it as soon as Tuesday, May 21 | Get it as soon as Tuesday, May 21 |
| Customer Ratings | ||||||
| Easy to install | ||||||
| For gaming | ||||||
| Value for money | ||||||
| Stability | ||||||
| Sold By | TECHOME | YAIMAY | nvtek | Timetec International Inc | TripleP Retail | DUO MEIQI |
| computer memory size | 4 GB | 32 GB | 16 GB | 8 GB | 2 GB | 8 GB |
| memory speed | 1333 MHz | 1600 microhertz | 1600 MHz | 1333 MHz | 667 MHz | 1333 MHz |
| RAM tech | DDR3 | DDR3L | DDR3 UDIMM | DDR3 | DIMM | DDR3 |
| number of items | 1 | 4 | 2 | 1 | 1 | 2 |
| data transfer rate | 12 gigabits per second | 1600 MHz | — | 1333 MHz | 8 bits per second | 1333 MHz |
| number of pins | 240 | 240 | 240 | 240 | 240 | 240 |
| compatible devices | 240-pin DIMM | Desktop | Major OEM DDR3 Desktop PC Motherboards | Desktop | Desktop | Desktop |
Reviews with images
Only can get this ram to work on 32bit XP... Also not the product pictured here.
I can't get this ram to work with any 64 bit OS. Its detected straight away by the BIOS, shows 8xxxMB running in dual channel. Was able to load windows xp pro 32 bit without any problems at all. CPU-Z on Xp shows 4GB of useable ram (only shows one DIMM, 32 bit operating systems can only allocate up to 4GB ram).But as soon as I try to boot into a 64 bit OS to take full advantage of the 8GB the system crashes. Tried booting Win 7 pro 64 bit crashes, or freezes before it can get to the loading animation. Tried with Ubuntu 14.04 64 bit desktop, and server, also tried with 64 bit Kali Linux all of which would crash before boot screen. Tried all this with multiple DIMM configurations, tried with just one of the 4gb, then the other one, tried in all memory slots. Nothing I do will get this ram to boot a 64 bit OS, even though it works fine with my old 2gb DIMM of the exact same specs.However, only when I'm using Windows XP pro 32 it works flawlessly, 4GB at full speed. Have spent countless hours searching around for a reason why this could be happening, but wasn't even able to find anyone with the exact problem I'm having. Memory that will work in a 32 bit os but not in a 64 bit... Very frustrating.Also, not that it means anything. But the ram I received looks nothing like the ram pictured here, its only half the height of the ram in the photo I've attached (next to a normal size DIMM for reference). Just thought that was kinda strange from the moment I opened it and it was all downhill from there. If you decide to purchase this product don't be surprised when it looks nothing like the ram in the photo.
