Question Ram keeps disconnecting

[rocckstar]

I have 1x16 gb and other 1x8 gb of ram. The issue is that my ram is always disconnecting. I have big cooler like deepcool assassin 3.. I don't know what can cause ram disconnect every time, I run occt stress test, it passes successfully whenever I insert my both ram. But when i start to play game.. Computer shuts and orange glows in Motherboards red (which is ram light), what can cause this issue, is cooler fan making contact and causing interference while gaming, because at that time it runs at full speed, maybe its vibration causes the Ram to loose up..

 

[JohnBonhamsGhost]

I have 1x16 gb and other 1x8 gb of ram

it's very likely that these 2 two sticks are just not compatible with each other in the long run.
have you even verified that both sticks are compatible with this specific motherboard? check the compatibility chart on the board's support pages if not.

but, it is never recommended to mix RAM kits due to issues like this and more.
even if they are the exact same make & model with the exact same specs they may not function properly together as a set if they were not from the same kit.
a lot of testing goes into these modules at the lab to ensure 100% compatibility before they are packaged together and sent off to be sold.

 

[rocckstar]

it's very likely that these 2 two sticks are just not compatible with each other in the long run.
have you even verified that both sticks are compatible with this specific motherboard? check the compatibility chart on the board's support pages if not.

but, it is never recommended to mix RAM kits due to issues like this and more.
even if they are the exact same make & model with the exact same specs they may not function properly together as a set if they were not from the same kit.
a lot of testing goes into these modules at the lab to ensure 100% compatibility before they are packaged together and sent off to be sold.

Yes they are both compatible, as both run at cl 16 latency one ram is xpg gammix d30 8gb 16 gb ddr 4 and other is corsair vengeance lpx 8gb 3200mhz ram ddr4.. Both running at cl16.. Latency.. Also I run occt, with memory 1 hour and prime 95 for 3-4 hours.. Also, if it wouldn't have been compatible then prime 95 and occt would shown an error, and pc will likely hangs and shutdown which happens when ram disconnects, due to cooler fan pushing ram... Cpu cooler is deepcool assassin 3.. I reseat the Ram and issue resolves.. Currently I placed first cpu cooler fan not at side of ram but at the middle near the cpu case rear fan.. In this case cpu cooler fan doesn't make any contact with ram.. But i cannot use exhaust fan because it Will result in improper fan placement

 

[JohnBonhamsGhost]

if it wouldn't have been compatible then prime 95 and occt would shown an error, and pc will likely hang

this is not true.
often there is only slight data corruption constantly going on while there is a mismatch of data communication between the modules.

I don't know what can cause ram disconnect every time...due to cooler fan pushing ram

your cooler is pressing on the RAM causing it to dislodge from it's DIMM slot but you claim you don't why it's happening?

get a different cooler that allows clearance
or get a matching set of low profile RAM that fits under the cooler.

 

[rocckstar]

this is not true.
often there is only slight data corruption constantly going on while there is a mismatch of data communication between the modules.

your cooler is pressing on the RAM causing it to dislodge from it's DIMM slot but you claim you don't why it's happening?

get a different cooler that allows clearance
or get a matching set of low profile RAM that fits under the cooler.

OK i am trying this setup, what if cpu cooler fan near rear case fan is pushing air out and the middle fan as pulling air in, will it obstruct any airflow.. And cpu rear fan will be outtake that is exhaust

 

[JohnBonhamsGhost]

if cpu cooler fan near rear case fan is pushing air out and the middle fan as pulling air in, will it obstruct any airflow.. And cpu rear fan will be outtake that is exhaust

there will be less cool air reaching the first set of fins but this can be offset by higher fan RPMs and/or more cool air being directly pulled in through the front panel and aimed directly at the cooler.

make sure any rear case fan is exhausting more air than the cooler's fan is blowing into it or there will be heated air building up in this area.
if you haven't already, and are able, add top-rear exhaust fan(s) as well.

 

[rocckstar]

there will be less cool air reaching the first set of fins but this can be offset by higher fan RPMs and/or more cool air being directly pulled in through the front panel and aimed directly at the cooler.

make sure any rear case fan is exhausting more air than the cooler's fan is blowing into it or there will be heated air building up in this area.
if you haven't already, and are able, add top-rear exhaust fan(s) as well.

Sorry, but I didn't understand.. Explain me in laymen terms.. Yes I have two exhaust top fan but i want to one rear exhaust fan somehow, only problem is that I cannot place any fan on ram side that's why I installed one fan to opposite side of ram.. And middle is obviously pulling air on, I want to say that opposite cpu cooler fan, if installed as exhaust, will it create any problem and case rear fan and top fan will be exhaust and I have also front 3 intake fan

 

[Misgar]

It has been a very long time since I fitted RAM of diffent capacities I'm a motherboard and we're probably going back before dual channel controllers became the norm and DDR or DDR2 memory.

I would never fit a 16GB DIMM from one manufacturer with an 8GB DIMM from another manufacturer in same motherboard, unless I was desperate.

You might improve stability by fitting the 16GB and the 8GB DIMMs in the same "channel" if you have a 4-slot motherboard. The BIOS might have a slightly less confusing time if it's not trying to run dual channel with different sized DIMMs.

I had perfect results from extended MemTest runs lasting over 4 hours with an XMP overclock of 3000MT/s on a Ryzen 2600, but within 15 minutes of running a standard web browser, the PC black screened and rebooted. Passing MemTest is not an absolute guarantee of stability.

Do yourself a favour and fit a matched pair of identical DIMMs, not two sticks of completely different RAM.

 

[JohnBonhamsGhost]

I had perfect results from extended MemTest runs lasting over 4 hours with an XMP overclock of 3000MT/s on a Ryzen 2600, but within 15 minutes of running a standard web browser, the PC black screened and rebooted.

you don't explain what "proof" you had observed that this crash was a problem with memory.

 

[Misgar]

I was forced to override the default XMP timings for XMP 3000MT/s and loosen the CL (CAS) settings to make the RAM stable. The Ryzen 2600 is only specified up to 2933MT/s and I was using 3000MT/s RAM.