notebook RAM exchange, the matter of voltage

PY_champ

PY_champ

PY_champ

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Hi, a quick and maby usual question, but wich I couldn't find a rliable answer to in the web:
I will soon get a HP 255 G9 7N075ES NOTEBOOK with a AMD Ryzen 5 5625U prosessor, that contains only one stick of DDR4 SO-DIMM 8gb 3200mhz cl22 running at 1.2V.
I want to upgrade to 2 stick of 16gb each. of course, going with the original parts would be the safest way, but, when already replacing with new RAM, I would like to squeeye a little bit more out of it.
Nowing that it is absolutely no high end PC, I am a bitt worried about putting in Mushkin Redline 3200mhz cl16-18-18-38 running at 1.35V
As far as I understand, the voltage will most probable automatically be reduced to 1.2V and therefore also the memory speed.
You could ,ofcourse, manually force higer Voltages (1.35V) and timings in the BIOS, but that cuold be harmful, isn't it?
In particular the Voltage worries me, as I couldn't find useful information regarding it in the net. Neither i could find useful information about the motherboard used regarding RAM.
The best one with 1.2V I could find is G.Skil Ripjaws 3200mhz cl18-18-18-43. This would be the safer option, as I guss.
Or would it harm the CPU or motherboard to put 1.35V on it?
Furthermore, I have been told one should check, if I actually can sett the timings named by the manufacturer in the BIOS, because, apparently, some motherboards only support a very narrow range of different timings.


About a hint or short explanantion, I would be very glad. Many thanks in advance!
 
PY_champ said:
Furthermore, I have been told one should check, if I actually can sett the timings named by the manufacturer in the BIOS, because, apparently, some motherboards only support a very narrow range of different timings.
Click to expand...

This is correct, in some cases: the BIOS may not permit any manual adjustment (including frequency, or timings, or voltage).

If this is true for your model, then you need JEDEC memory, since gaming memory which relies on XMP may only function at 2666 (or even lower).

In a pdf on the HP site, here, it says:

11. All slots are non-accessible / non-upgradeable.
12. Due to the non-industry standard nature of some third-party memory modules, we recommend HP branded memory to
ensure compatibility. If you mix memory speeds, the system will perform at the lower memory speed.
Click to expand...

Which suggests it doesn't support anything except generic JEDEC memory (which runs at 1.2v).
 
Last edited:
A quick look
Suggests maximum is 2 x 8gb
Quite likely its not going to allow
Changing bios ram settings
I would stick with what's already in it
Didn't go as far as downloading and reading the manual
To make certain you can add ram in the second slot
Ie that's its not soldered ram
And only way to get more ram is buying a higher spec
To begin with
 
Ok ,thanks for the replies. Sad to get to konw about the bad compatibility.
So, theortically, if I am able to sett the timings for the new ram in the BIOS, 3200mhz cl20 1.2V JEDEC Ram should most probably work without issues, right?
Or does HP force its clients to buy its spare parts?
 
PY_champ said:
Ok ,thanks for the replies. Sad to get to konw about the bad compatibility.
So, theortically, if I am able to sett the timings for the new ram in the BIOS, 3200mhz cl20 1.2V JEDEC Ram should most probably work without issues, right?
Or does HP force its clients to buy its spare parts?
Click to expand...

I think Kingston and Crucial's configurators will both suggest memory for the same model of laptop, but it is 3200 CL22 1.2v.
 
PY_champ said:
Ok ,thanks for the replies. Sad to get to konw about the bad compatibility.
So, theortically, if I am able to sett the timings for the new ram in the BIOS, 3200mhz cl20 1.2V JEDEC Ram should most probably work without issues, right?
Or does HP force its clients to buy its spare parts?
Click to expand...
Most probably work
Though when it's possible
I would buy same as what's already in something
Down to exact model number
Assuming it's available
 
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