mixing same brand ram, but different model ?

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J

jutthenut

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Jul 26, 2013
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I all ready have 2x 4gb kingston normal ram modules in my pc and I am looking to upgrade to 16gb.

Will I safely be able to mix these ram modules together ? or would it just be best to get another another x2 4gb kit of the same ram ?

current ram: https://www.amazon.co.uk/Kingston-KVR13N9S8HK2-1333-Non-ECC-240-Pin/dp/B00BD7QLRK/ref=sr_1_8?ie=UTF8&qid=1492009069&sr=8-8&keywords=kingston%2B1333%2Bddr3&th=1

Ram planning to add: https://www.amazon.co.uk/HyperX-FURY-DDR3-Memory-Module/dp/B00J8E9334/ref=sr_1_1?ie=UTF8&qid=1492009475&sr=8-1&keywords=kingston+8gb+ram
 
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J
you can do it but you will have to do the settings of the slower RAM module.
the slower module runs with a 260ns command delay, I suspect it is a 2n or 2t
(two clock ticks per memory command, rather than the faster 1 clk tick)

when you add the new ram, the BIOS will detect it and it will try to pick settings. if it uses your older ram as the default it will work fine, if it uses the new ram you will get memory errors and have to manually set your ram setting in BIOS.
1333mhz, 9,9,9, command rate=2 N

it will be better to have matching ram in any case just to avoid problems.
People often get the primary timings correct but never set the secondary timings and can have various memory problems that lead to corruption of data in memory...
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clarkjd

clarkjd

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Dec 7, 2005
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Getting two different ram kits(even same brand) to work together is problematical at best, impossible at worst! Even if you got the same exact brand, make, and model, speed and timings, it would be a crapshoot. As far as safely, sure. It won't hurt anything, it just might not work. Remember, they sell matched sets of ram for a reason!
 
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J

jutthenut

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Jul 26, 2013
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So, should I get another x2 4gb of the same ram I currently have ?
 
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clarkjd

clarkjd

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Dec 7, 2005
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As I said before, it is a crapshoot as to whether it will work or not. I got the exact same 2x4gb kit of ram that I had, only 6 years younger, and my PC wouldn't even boot. If your PC boots with ONLY the new ram in, and with ONLY the old ram in, but doesn't boot with BOTH, then you know that it is incompatible with both sets of ram.All you can do is try them. YMMV

 
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J

jutthenut

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Jul 26, 2013
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thanks for advice the, think I will just save up and get a completely new 16gb set.
 
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J

johnbl

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Nov 4, 2012
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you can do it but you will have to do the settings of the slower RAM module.
the slower module runs with a 260ns command delay, I suspect it is a 2n or 2t
(two clock ticks per memory command, rather than the faster 1 clk tick)

when you add the new ram, the BIOS will detect it and it will try to pick settings. if it uses your older ram as the default it will work fine, if it uses the new ram you will get memory errors and have to manually set your ram setting in BIOS.
1333mhz, 9,9,9, command rate=2 N

it will be better to have matching ram in any case just to avoid problems.
People often get the primary timings correct but never set the secondary timings and can have various memory problems that lead to corruption of data in memory and failure of windows. The problem is compounded if your system sleeps rather than the old days when people would power the system down.
 
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