C22-820 maximum RAM What is the max for ddr for this pc?

stgoge

Hello. What is the max for ddr for this pc? I tried to install 8gb DDR4, but it didn’t work. BIOS detects 8gb, all ok, but system never try to load. Just stand after bios messages on turn on. What is the issue?
[Edited the thread to add the issue detail]

stgoge

I also tried some crucial SODIMM 3200Mhz and pc just not started at all xD
And finally I purchased Kingston KVR26S19S8/8 with 2666MHz and... all is fine! It works! Dunno what was that. BIOS still detects it as 2400MHz dimm, but all works) Thanks all for help) Resolved

JackE

Should be 16GB DDR4 2133MHz or faster. Was the RAM socket empty when you opened it?

stgoge

Processor support up to 8Gb. In stock this PC have 4Gb 2400Mhz. I installed 8Gb 2400Mhz and its didnt work

JackE

Please post phone photos of (or part numbers on) the labels on the 4GB module that works and the 8GB module that doesn't work.

stgoge

Bios detects both modules, both as 2400Mhz

StevenGen

stgoge said:

Hello. What is the max for ddr for this pc? I tried to install 8gb DDR4, but it didn’t work. BIOS detects 8gb, all ok, but system never try to load. Just stand after bios messages on turn on. What is the issue?

The Aspire C22-820 C-Series max memory is 64GB (2x 32GB DDR4-2666MHz). This stated maximum RAM capacity is higher than the information provided by Acer. The technical background for higher maximum usable capacities with CompuRAM upgrades is explained in their “blog post ‘Maximise the maximum?’ as it is with the Crucial System Scan so look at these sites as that will give you the best information to whatever you want to upgrade your PC memory to?

JackE

OK. With the 4GB sodimm installed, what do you see for BIOS INFORMATION memory and speed? With the 8GB sodimm installed, what do you see for the BIOS INFORMATION memory and speed?

stgoge

with 4Gb installed I see 4096 Mb 2400Mhz, with 8Gb - 8192 Mb 2400Mhz 

JackE

Is the AMD 8GB sodimm new or used?

stgoge

Its new. And this is second one module that doesnt work. Before this one I purchased another one brand new module with identical specification, and all was the same: BIOS detects its with 2400MHz and didnst start any load.

JackE

Try disabling secure boot in the BIOS tab.

stgoge

Thank you.
Tried now. Its have no effect. System still freeze after first BIOS messages. Keyboard reacts for num-lock, for example, but cant reboot this with ctrl-alt-del

JackE

Did you flash the BIOS firmware? It does not look like the ACER OEM version?

egydiocoelho

When you just install the new 8gb ram module, does windows boot?

JackE

@egydiocoelho Windows won't boot with the 2400MHz AMD 8GB sodimm. But will boot with the 3200MHz Kingston 4GB sodimm. Both the 8GB & 4GB sodimms are recognized in the BIOS at 2400MHz. The BIOS firmware version however is not listed on the ACER downloads.

stgoge

JackE said:

Did you flash the BIOS firmware? It does not look like the ACER OEM version?

I did nothing with BIOS, just replaced SODIMM

stgoge

egydiocoelho said:

When you just install the new 8gb ram module, does windows boot?

It’s not. Just freeze as on screen above

JackE

>>>I did nothing with BIOS, just replaced SODIMM >>>

Can you please post a phone photo of the BIOS MAIN tab similar to the one shown below?

egydiocoelho

JackE said:

@egydiocoelho Windows won't boot with the 2400MHz AMD 8GB sodimm. But will boot with the 3200MHz Kingston 4GB sodimm. Both the 8GB & 4GB sodimms are recognized in the BIOS at 2400MHz. The BIOS firmware version however is not listed on the ACER downloads.

Maybe it's an update performed by windows?

JackE

Yes @egydiocoelho . Good point!

stgoge

I also tried some crucial SODIMM 3200Mhz and pc just not started at all xD
And finally I purchased Kingston KVR26S19S8/8 with 2666MHz and... all is fine! It works! Dunno what was that. BIOS still detects it as 2400MHz dimm, but all works) Thanks all for help) Resolved