Patriot Memory Viper 3 DDR3 RAM 16GB (2X8GB) 1866MHz CL10 1.5v UDIMM Desktop Gaming Memory Kit Compatible with XMP - PV316G186C0K
Want the best price and purchase timing?
Our AI advisor analyzes real-time pricing across all channels to find you the best deal.
AI Verdict
This 16GB (2x8GB) DDR3 1866MHz CL10 1.5V kit is for users needing a memory upgrade for older Intel DDR3 systems, especially those with XMP 1.3 support.
This 16GB (2x8GB) DDR3 1866MHz kit is a specific upgrade for older systems. Its 1.5V operation and XMP 1.3 profile are tailored for certain Intel DDR3 chipsets, but compatibility isn't guaranteed across all DDR3 motherboards, especially when mixing with existing RAM. It's not a universal plug-and-play solution for every DDR3 setup.
If you need guaranteed compatibility and easier installation, look for a single 16GB DDR3 module if your motherboard supports it, or a kit explicitly listed on your motherboard's Qualified Vendor List (QVL).
Regret Score™
High RiskLower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity
Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Operates at 1866MHz with 10-11-10-30 timings, providing faster data access than slower DDR3 modules.
- Includes a custom-designed heat shield for thermal management during demanding use.
- Features XMP 1.3 support for simplified overclocking on compatible Intel platforms.
- Many users report it working as expected, with some noting a performance increase over lower capacity or higher latency RAM.
- Hand-tested for quality assurance and backed by a lifetime warranty.
Cons
- Users frequently report compatibility issues, with some PCs only booting with one 8GB stick or not at all when both are installed.
- Requires manual BIOS configuration or XMP profile activation to reach advertised 1866MHz speeds and 10-11-10-30 timings on some motherboards.
- The 1.5V operating voltage might be higher than some older DDR3 motherboards prefer, potentially leading to instability if not properly configured.
- Heat spreader design, while functional, might cause clearance issues with large CPU air coolers in compact cases.
Dimension Scores
The 1866MHz speed with CL10 timings was above average for DDR3 memory when it was a current standard, offering a noticeable performance bump over 1333MHz or 1600MHz CL11 modules.
Despite being DDR3, numerous user reports indicate significant compatibility challenges, particularly when mixing with other RAM or with certain motherboard/CPU combinations, leading to boot failures.
It supports XMP 1.3 for easy one-click overclocking to its advertised 1866MHz speed, which is a form of factory-guaranteed overclocking, but pushing beyond that is not explicitly highlighted.
The kit is hand-tested for quality assurance, features a heat shield for thermal stability, and comes with a lifetime warranty, suggesting a commitment to long-term function.
Best For
- Upgrading an existing DDR3 system from 8GB to 16GB for increased multitasking capacity.
- Building a budget-focused DDR3 gaming PC that supports 1866MHz memory speeds.
- Intel DDR3 platforms that explicitly support XMP 1.3 profiles for easy performance tuning.
Not Recommended For
- Systems requiring DDR4 or DDR5 memory, as this is a DDR3 kit.
- Users unwilling to troubleshoot potential XMP or compatibility issues during installation.
- Motherboards with limited RAM slot clearance due to oversized CPU coolers.
Watch Out For
- Some users experience their PC only booting with one 8GB stick, or failing to boot entirely when both 8GB modules are installed, even if individual sticks function.
- The RAM might default to a slower JEDEC speed (e.g., 1333MHz or 1600MHz) upon initial installation, requiring manual BIOS adjustment to enable the 1866MHz XMP profile.
- Mixing this 1866MHz CL10 kit with existing RAM of different speeds or timings can lead to system instability or prevent booting, even if the existing RAM is also DDR3.
Full Specifications
| ASIN : | B00453R90W |
| Manufacturer : | Patriot Memory |
| Item model number : | PV316G186C0K |
| Product Dimensions : | 5.2 x 1.63 x 0.3 inches; 2.72 ounces |
| Date First Available : | August 7, 2012 |
| Is Discontinued By Manufacturer : | No |
What Buyers Say
Many users upgrading their DDR3 systems find this Patriot Viper 3 kit to be a straightforward performance boost, often noting a tangible speed increase over their previous, slower RAM. However, a recurring issue is installation difficulty, with several reports of systems failing to boot when both 8GB sticks are installed, even if individual sticks work fine. This often points to XMP configuration challenges or specific motherboard limitations, rather than faulty RAM itself.
“Dude, I bought this to upgrade my old rig and it was a total headache getting both sticks to work, kept getting no boot. Had to mess with BIOS settings for like an hour, but once it finally POSTed with XMP, it actually flies for DDR3. Still, almost sent it back.”
Common Praise
- System booted up correctly on the first attempt for some users.
- Provides a noticeable performance improvement over 8GB or slower DDR3 RAM.
- Passed memory diagnostic tests without errors for some owners.
- The heat spreaders look sharp and contribute to thermal management.
Common Complaints
- PC only boots with one 8GB module installed, not with both.
- System fails to boot entirely when both sticks are inserted.
- Requires manual BIOS adjustments to enable the 1866MHz XMP profile.
- Incompatibility when attempting to mix with existing DDR3 memory.
Ownership Tips
- The heat spreaders are relatively low-profile, reducing potential interference with large CPU coolers.
- Achieving the advertised 1866MHz speed often requires manually enabling the XMP profile in the motherboard's BIOS.
- Some users found success by updating their motherboard's BIOS before installing the new RAM to improve compatibility.
- If mixing with existing RAM, the system will likely run all modules at the speed and timings of the slowest stick, if it boots at all.
Frequently Asked Questions
Will this RAM work with my AMD system?
While designed with Intel's DDR3 compatible processors and chipsets in mind, DDR3 RAM is generally compatible with AMD systems that support DDR3. However, XMP profiles are an Intel feature; you might need to manually set timings and frequency on an AMD board.
Do I need to enable XMP for this RAM?
Yes, to achieve the advertised 1866MHz speed and 10-11-10-30 timings, you will likely need to enable the XMP 1.3 profile in your motherboard's BIOS. Without XMP, it may run at a lower default JEDEC speed.
Can I mix this with my existing DDR3 RAM?
Mixing RAM can be problematic. Users report issues when combining this kit with other sticks, even if they are also DDR3 1866MHz. For best stability, it's recommended to use matched kits.
What does CL10 mean?
CL10 refers to the CAS Latency, which is 10 clock cycles. This is a measure of how many clock cycles it takes for the RAM to respond to a request from the CPU. Lower CL numbers generally indicate faster response times.
Is 1.5V safe for my motherboard?
Most DDR3 motherboards support 1.5V RAM. However, some older or entry-level boards might prefer 1.35V or have limited voltage regulation. Check your motherboard's specifications for supported RAM voltage.
Buying Guide
When buying DDR3 RAM like this, you need to know your motherboard's maximum supported memory speed and capacity per slot. Just because it's DDR3 doesn't mean it'll work with every DDR3 board at its highest speed. You'll probably need to go into your BIOS to enable the XMP profile to get the full 1866MHz, otherwise, it might run slower by default.
DDR3
1866MHz
CL10 (CAS Latency)
XMP (Extreme Memory Profile)
Alternatives
If this kit doesn't fit, look for DDR3 RAM with 1.35V operation for broader compatibility with older motherboards, or a lower speed like 1600MHz if your system doesn't support 1866MHz.
You Might Also Like
Crucial 32GB DDR4 RAM Kit (2x16GB), 3200MHz (PC4-25600) CL22 Laptop Memory, SODIMM 260-Pin, Downclockable to 2933/2666MHz, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT2K16G4SFRA32A
A 32GB (2x16GB) DDR4 3200MHz CL22 SODIMM kit operating at 1.2V, designed for laptops needing a significant boost in multitasking and system responsiveness.
Crucial 16GB DDR4 RAM, 3200MHz CL22 (or 2933MHz or 2666MHz) Laptop Memory, SODIMM 260-Pin, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT16G4SFRA32A
This 16GB DDR4 SODIMM 260-pin module at 3200MHz CL22 is for laptop owners needing a straightforward performance boost for multitasking and application loading.
Corsair Vengeance LPX DDR4 RAM 16GB (2x8GB) 3200MHz CL16-18-18-36 1.35V Intel AMD Desktop Computer Memory - Black (CMK16GX4M2B3200C16)
This 16GB (2x8GB) DDR4 3200MHz CL16 RAM kit offers 1.35V operation and a 34mm low-profile design for most Intel and AMD desktop builds.
Crucial 8GB DDR4 RAM 3200MHz (PC4-25600), Downclockable to 2933/2666MHz Laptop Memory, SODIMM 260-Pin CL22, Compatible with 13th Gen Intel Core and AMD Ryzen 7000 - CT8G4SFRA32A
This 8GB DDR4 3200MHz CL22 SODIMM is a budget-friendly upgrade for laptops needing a performance bump for everyday tasks and light multitasking.