Sign in with
Sign up | Sign in
Your question
Solved

What does the voltage on a memory chip mean?

Last response: in Memory
Share
June 20, 2014 11:09:03 AM

I've been looking through memory chips, and sometimes it mentions voltage on the chips stats and sometimes it doesn't. How concerned about the voltage should I be?

More about : voltage memory chip

a b } Memory
June 20, 2014 11:15:20 AM

Your motherboard, should set the proper voltages for your ram automatically. Its doubtful you should ever need to worry about it, unless you are getting blue screens or similar crashes.
m
0
l

Best solution

a b } Memory
June 20, 2014 11:19:11 AM

Depends on your chipset mainly. Older DDR3 memory was specced at 1.65volts, newer intel systems like to see 1.5volts as the maximum safe voltage since the memory controller moved to the CPU.

Safest thing to do is stick the QVL or HCL of your given motherboard. (Qualified Vendor List, Hardware Compatibility List)
Share
Related resources
a c 139 } Memory
June 20, 2014 12:50:11 PM

Eximo said:
Depends on your chipset mainly. Older DDR3 memory was specced at 1.65volts, newer intel systems like to see 1.5volts as the maximum safe voltage since the memory controller moved to the CPU.

Safest thing to do is stick the QVL or HCL of your given motherboard. (Qualified Vendor List, Hardware Compatibility List)


1.5 volts +/- 5% has always been the JEDEC standard for DDR3. Performance modules typically use 1.6 or 1.65 volts to achieve stability at higher data rates. Performance DDR3 dominated the market because mainstream DDR3 wasn't clearly superior to DDR2 and didn't justify its price premium. Since DDR3 has now been around for quite some time, newer modules fabricated on newer processes do not need as much voltage to achieve stable operation at the same data rate.

For example, 90nm DDR3-1600 would have been considered exotic in 2008 and would have most likely required 1.65 volts. In 2011 30-40nm DDR3-1600 would be considered mainstream and would have required 1.65 volts. In 2014, 20nm DDR3L-1600 can run at 1.35 volts.
m
0
l
a b } Memory
June 20, 2014 1:02:37 PM

Good point, hadn't really looked at it that way, since I always bought performance RAM.
m
0
l
!