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No display output after RAM upgrade

Go to solution Solved by RONOTHAN##,
52 minutes ago, Abeing3 said:

I was wondering if it was possible that since the system only supported 2666 and I was using 3200 that could be causing problems

This is very unlikely, since the system will just default it to running at a slower speed if necessary. The BIOS would have had to have been written terribly in order for this to be possible, and while I don't have high expectations for how well a Lenovo BIOS will be written, it's still high than that. 

 

53 minutes ago, Abeing3 said:

or if the fact that it isn't SK hynix ram like what came in the system could be causing issues.

This is slightly more likely. Without going too much into detail, there's a couple dozen different memory ICs that any given memory stick can use, and each one needs a specific set of parameters to work that are figured out during memory training. It's possible that Lenovo didn't bother optimizing their BIOS for the ICs that are present on the new sticks that you're using when compared to the old kits. Can you maybe include photos of each of the two kits so that we can compare them, since with Corsair kits it's usually possible to decode what memory IC it has from the label, and with SK Hynix you can usually decode it from the model number or just reading it off the memory packages themselves. 

I upgraded my Lenovo ThinkBook 14 IIL from 8gb to 16gb of Corsair vengeance 3200 mhz cl 22 ddr4, and I am not getting any display output (I don't think the system is posting). I have reset the CMOS, tried 2 different kits, and I am experiencing the same issue, however when I put the old set of ram back in, it boots perfectly. 

 

I was wondering if it was possible that since the system only supported 2666 and I was using 3200 that could be causing problems, or if the fact that it isn't SK hynix ram like what came in the system could be causing issues.

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52 minutes ago, Abeing3 said:

I was wondering if it was possible that since the system only supported 2666 and I was using 3200 that could be causing problems

This is very unlikely, since the system will just default it to running at a slower speed if necessary. The BIOS would have had to have been written terribly in order for this to be possible, and while I don't have high expectations for how well a Lenovo BIOS will be written, it's still high than that. 

 

53 minutes ago, Abeing3 said:

or if the fact that it isn't SK hynix ram like what came in the system could be causing issues.

This is slightly more likely. Without going too much into detail, there's a couple dozen different memory ICs that any given memory stick can use, and each one needs a specific set of parameters to work that are figured out during memory training. It's possible that Lenovo didn't bother optimizing their BIOS for the ICs that are present on the new sticks that you're using when compared to the old kits. Can you maybe include photos of each of the two kits so that we can compare them, since with Corsair kits it's usually possible to decode what memory IC it has from the label, and with SK Hynix you can usually decode it from the model number or just reading it off the memory packages themselves. 

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5 minutes ago, RONOTHAN## said:

Can you maybe include photos of each of the two kits so that we compare them, since with Corsair kits it's usually possible to decode what memory IC it has from the label, and with SK Hynix you can usually decode it from the model number or just reading it off the memory packages themselves. 

Alright, thanks, the Corsair module is currently in the system, but I've got the label on the box which is identical below. I had tried to decide the IC maker of the Corsair ram, but the sodimm doesn't display the version information that Corsairs website associates with different ICs:

PXL_20250125_172347904_MP2.thumb.jpg.6e99f176c905e7f4cef720d6c08cb9ae.jpg

 

SK hynix module:

 

PXL_20250125_172515317_MP2.thumb.jpg.df6923e04bf52350fc13165284913f22.jpg

 

 

Thanks for the help.

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2 minutes ago, Abeing3 said:

Alright, thanks, the Corsair module is currently in the system, but I've got the label on the box which is identical below. I had tried to decide the IC maker of the Corsair ram, but the sodimm doesn't display the version information that Corsairs website associates with different ICs:

With Corsair modules, it's actually only ever present on the stick itself. There will be a small number that looks like "Ver. 4.31" that if you decode it will give you the memory IC. There are some sticks that don't have it though, so if you say that this label looks identical, it's probably one of them. You can't determine it from just the model number, since for the most part RAM manufacturers will change what IC is present on any given kit depending on what they have at the factory that day. 

 

 

The SK Hynix kit is 8Gb JJR if you're curious, which isn't exactly a common IC from what I know. 

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17 minutes ago, RONOTHAN## said:

With Corsair modules, it's actually only ever present on the stick itself. There will be a small number that looks like "Ver. 4.31" that if you decode it will give you the memory IC. There are some sticks that don't have it though, so if you say that this label looks identical, it's probably one of them.

Yes, that sounds about right.

20 minutes ago, RONOTHAN## said:

The SK Hynix kit is 8Gb JJR if you're curious, which isn't exactly a common IC from what I know. 

So would the best fix be swapping the kit for one with the same IC?

 

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3 minutes ago, Abeing3 said:

Yes, that sounds about right.

So would the best fix be swapping the kit for one with the same IC?

 

That should do it hopefully, trying to find another SK Hynix kit that's got the same IC. This should be that kit if you want to just order it off Amazon/find another kit with the same model number.

https://www.amazon.com/Hynix-PC4-21300-2666MHz-260-pin-SO-DIMM/dp/B07WKGM4KT

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3 minutes ago, RONOTHAN## said:

That should do it hopefully, trying to find another SK Hynix kit that's got the same IC. This should be that kit if you want to just order it off Amazon/find another kit with the same model number.

https://www.amazon.com/Hynix-PC4-21300-2666MHz-260-pin-SO-DIMM/dp/B07WKGM4KT

So how can I determine if it's the same IC, as the exact same model is for some reason ridiculously expensive in the UK.

 

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2 minutes ago, Abeing3 said:

So how can I determine if it's the same IC, as the exact same model is for some reason ridiculously expensive in the UK.

 

Look at the last 5 digits of the model number before the -VK, as those are the coded IC assuming you're buying from SK Hynix. You basically want it to end in  "JJR8N"

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9 minutes ago, RONOTHAN## said:

Look at the last 5 digits of the model number before the -VK, as those are the coded IC assuming you're buying from SK Hynix. You basically want it to end in  "JJR8N"

Alright, thanks for your help, It looks like it isn't for retail sale in the UK, but I've found a good eBay listing so hopefully that will fix things.

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