Author: parsec
Subject: Extr.7+ several Problems
Posted: 15 Jun 2016 at 11:17pm
No need to be sorry, these things can be confusing, and it's not like we are standing next to each other talking. We can correct ourselves easily in an actual conversation, but going by a few sentences we've written as the only communication between us is difficult if everything is not perfect. Perfect on the sending and receiving end... meaning you wrote exactly what you meant to say, and then I understand exactly what you meant. That is not easy.![Confused]( "Confused")
This is the potential problem with buying two kits of the same memory model, at two different times, and possibly from two different sources:
G.SKILL is a fine company, but they do not manufacture their own memory chips. They buy memory chips from Samsung, Hynix, etc. Let's say they make the TridentZ F4-3400C16D-16GTZ kit that you have now with Samsung memory chips.
G.SKILL does not have an infinite supply of any particular type of memory chip, since they buy them from various sources. So a month or two later, they run out of the Samsung memory chips they used in the F4-3400C16D-16GTZ kit you have. G.SKILL still wants to sell the TridentZ memory models, but for whatever reason, they can't get the same Samsung memory chips anymore, or at least immediately. So they change to Hynix memory chips in the next production of the F4-3400C16D-16GTZ memory model.
All DDRX memory chips from different manufactures are not identical, they can have different capacities and other parameters are different. Those differences matter to the memory controller in the CPU, it prefers the memory chips in all the DIMMs to be as identical as possible. There is some give and take in the differences the memory controller can deal with, but it has limits.
The bottom line is no one can guarantee that two kits of the same memory model, that may be using different chips in different production runs, will work together. This is the main reason that matched DIMMs in a memory kit is important.
That scenario will be pure luck, and is beyond our control. That's the reason I cannot tell you two memory kits from G.SKILL bought at two different times will work together.
The Crucial company is an example of the opposite of this situation. Crucial makes their own memory chips. I've bought multiple kits of the same model of Crucial memory at different times, and they all work together fine. Crucial kits do not even have sequential serial numbers on the DIMMs, in the same package!
Am I telling you to use Crucial memory? No, just an example of the differences between the two companies.
I hope you can understand why I cannot tell you if what you'd like to do will work. Simply the reality of the situation. Can I tell you what are the chances you'll get two kits with the same memory chips? No more than you can.
Subject: Extr.7+ several Problems
Posted: 15 Jun 2016 at 11:17pm
 Failtainment_TV wrote:sorry. i am not really sure, so: a later upgrade with another 2x8GB 3400 set will work properly? I have / want to spare money atm, if possible. so: first i thought to stay with one DDR4 3400 8GB G.Skill TridentZ F4-3400C16D-16GTZ kit (16GB), then later add another 2x8GB (16GB --> 32GB) of the same configuration. will that work properly? because: if a setting with a direct setup with a F4-3400C16Q-32GTZ kit will work better/faster/more stable . . . well . . . then i have to deal with it and sell my kidney for that :) should be the last question in this thread :) so: better return the 2x8 kit for later upgrade and direclty go the last mile and buy the DDR4 3400 8GB G.Skill tridentZ F4-3400C16Q-32GTZ-kit !? |
No need to be sorry, these things can be confusing, and it's not like we are standing next to each other talking. We can correct ourselves easily in an actual conversation, but going by a few sentences we've written as the only communication between us is difficult if everything is not perfect. Perfect on the sending and receiving end... meaning you wrote exactly what you meant to say, and then I understand exactly what you meant. That is not easy.
This is the potential problem with buying two kits of the same memory model, at two different times, and possibly from two different sources:
G.SKILL is a fine company, but they do not manufacture their own memory chips. They buy memory chips from Samsung, Hynix, etc. Let's say they make the TridentZ F4-3400C16D-16GTZ kit that you have now with Samsung memory chips.
G.SKILL does not have an infinite supply of any particular type of memory chip, since they buy them from various sources. So a month or two later, they run out of the Samsung memory chips they used in the F4-3400C16D-16GTZ kit you have. G.SKILL still wants to sell the TridentZ memory models, but for whatever reason, they can't get the same Samsung memory chips anymore, or at least immediately. So they change to Hynix memory chips in the next production of the F4-3400C16D-16GTZ memory model.
All DDRX memory chips from different manufactures are not identical, they can have different capacities and other parameters are different. Those differences matter to the memory controller in the CPU, it prefers the memory chips in all the DIMMs to be as identical as possible. There is some give and take in the differences the memory controller can deal with, but it has limits.
The bottom line is no one can guarantee that two kits of the same memory model, that may be using different chips in different production runs, will work together. This is the main reason that matched DIMMs in a memory kit is important.
That scenario will be pure luck, and is beyond our control. That's the reason I cannot tell you two memory kits from G.SKILL bought at two different times will work together.
The Crucial company is an example of the opposite of this situation. Crucial makes their own memory chips. I've bought multiple kits of the same model of Crucial memory at different times, and they all work together fine. Crucial kits do not even have sequential serial numbers on the DIMMs, in the same package!
Am I telling you to use Crucial memory? No, just an example of the differences between the two companies.
I hope you can understand why I cannot tell you if what you'd like to do will work. Simply the reality of the situation. Can I tell you what are the chances you'll get two kits with the same memory chips? No more than you can.