Totally confused ... need memory for i7 4790 ....

xtal_01 · Mar 7, 2018

Hello, I have been trying for hours to understand what memory I need.

The computer is three or four years old. It is an HP Z230 with a I7 4790 processor. Two slots are taken up by 8 gb of memory, I what to add 8 gb more.

The manual says :"i5/i7 processors only support non-ECC memory"

Then it starts talking about CTO and AMO .... hmmmmm??????

It lists "DDR3-1600 non-ECC RAM" in one spot and "DDR3-1600-nECC RAM" in another spot ... are these the same?

That is all they list.

When I start looking on the web there are soooooo many chooses. Of coarse I want to spend the minimum I have to. Some lists "PC3-12800" .. some says PC3-12800R ... some say 1.35 volt and others 1.5 volt ....

Then I haven't even gotten into CAS ... I have not idea what this means!

Price seems to be from about $40 ( $20 per 4 gb stick) to $150!

Can someone please straighten me out!

If I go on Amazon or Ebay, what do I look for? Doesn't have to be new ... just decent quality.

What do I need to work with this machine?

Thanks so very much .... Mike

Doctor Rob · Mar 7, 2018

Here you go (as long as you put in the correct model of your computer.

http://www.crucial.com/usa/en/compatible-upgrade-for/HP---Compaq/hp-z230-tower

IF you want a easy one that site will give you what you need. YOU can always see if the prices are cheaper for the model you wnat. on a different site.

I would get this one http://www.crucial.com/usa/en/hp-z230-tower/CT9383256
OR if you want 16GB (I would recomend) http://www.crucial.com/usa/en/hp-z230-tower/CT7345515

ALSO, dont mix and match ram.. it causes issues (most of the time). You could try the 8GB pair but I would just get the 16GB pair as it will work kinda thing.. If you get the 8GB kit it may not work with the other memory you currently have.

xtal_01 · Mar 7, 2018

You are awesome! ... to for this memory I am looking at about $80.

Not to sound cheap but money is very tight (my wife is disabled, heck I drive a 31 year old truck) ...long story but this computer (I am just about to buy it off ebay for $230 plus $34 shipping ... $265 ) is to replace a 10 year old one that just died (literally has a 2008 date on it). I am not a gamer ... but I do run a one person business and do some cadd. multi-media, ... a little bit of everything.

Is there any used memory that you could recommend?

I just looked on ebay ... I found one (actually the only one .. the others came close to the price of new memory) ... is this the same stuff:

http://

I looked on Amazon and saw nothing much cheaper.

Just trying to save a few dollars if I can.

Thanks so very much again .... Mike

xtal_01 · Mar 7, 2018

Help!

I just got a note from a friend who said I can't just add another 8 gig of memory! He said I would need to pull out and throw away the 8 gig in the machine and add a "matched set" of either four 4 gig sticks or two 8 gig sticks!

Is this true???????

Big difference between adding $80 and adding $160 to the cost of the computer!

Thanks .... Mike

xtal_01 · Mar 8, 2018

Looking at the new Crucial memory, I was about to say I just can't afford this computer .... 16 gig would be about $160!

BUT .... looking at ebay ....

Could you tell me if either of these two would work? I tried to look for a HP part number for the required memory (looked through the two manuals found online) but could not find a part number.

https://www.ebay.com/itm/Micron-16G...572986?hash=item56aa6ec2ba:g:t4sAAOSwVtZaEzZ2

https://www.ebay.com/itm/4-Ramaxel-...312073444686?_trksid=p2385738.m4383.l4275.c10

At $100 ... it is only $20 more then I was going to pay for 8 gig of new crucial memory.

Thanks so much again for all your help!!!!!!!!!!!!!!

Save me from a big mistake!

Mike

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Totally confused ... need memory for i7 4790 ....

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