Ddr4 2400 or 3000.

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michaelhinchey

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Hello
I am upgrading my htpc to as rocks z370 m itx board, along with i3 8100.
The board is grated upto 4000 oc but the cpu can not be over clocked.
I am not gaming on this rig. It is strickly for uhd playback from ether online streaming or local or nas. Online internwt search etc. I would only be using on board graphics. Would it be worth it to put (2) 4g sticks , (1)8g, (2) 2g, or (1) 16g.
Also since the cpu cannot be over clocked is there any real value of buying anything over ddr4 2400 speed?
Thx for the feedback
Ps.. I know people will say this is overkill but I needed everything to be compliant with the new Intel sgx standard and be 2.2 hdcp compliant. I know I could have also did this with last yrs boards and cpu but the savings would have been negligible for me since I plan on keeping this just like my last system for as long as possible. My last system is just at its 8yr mark. The optical port went and the cpu won't pass over sound via hdmi. The board also will only accept upto a 775 cpu. So I think it's time to upgrade now.
I also am aware of nucs and other small form factor systems. I didn't want to take that route. Thanks again

Oh yes. I would also like this to help me rip/edit my uhd blurays.
 
Solution
geofelt
First of all, buy a ram kit that is compatible with your selected motherboard.
Ram vendors have apps where you enter your motherboard, and you get a list of supported kits.

Integrated graphics runs better with dual channel ram. buy a 2x ?? kit.
Do not plan on ever upgrading ram.
Adding ram in the future is not guaranteed to work. Ram must be matched.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Buy whatever you might ever need up front. If budget is not a big issue, buy a 2 x 8gb kit.

Faster ram is good for integrated graphics and for the cpu. You are looking at a 2-5% difference between...
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michaelhinchey

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The reason I don't want to wait is that my Pc is dying a slow death, as I expained above. It is becoming non functional as an htpc. Esp because you cannot do Dolby Atmos over optical and my rig now won't pass audio over hdmi. Is that more clear? Sorry for any lack of confusion.
There is a local guy that has ddr4 3000 for 70 bucks. It's 2 sticks of 4 g. Corsair vengance. But I can buy online for the same price with free shipping and skip the hastle of traffic and everything that comes attached to making schedule's permit if I opt for the ddr4 2400.
 
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kanewolf

kanewolf

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It is a question of if those features are worth the extra cost of Z board features you won't use. That is a question only you can (and seem to have) answer. I just wanted to make sure you had thought about waiting for the non-Z boards. There are LOTS of posts here where $10 is a budget buster. The delta cost on a Z vs non-Z board is probably $50 or more. That is significant to many posters.
 
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michaelhinchey

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I totally get that. And 50 bucks really would make a huge difference. I really don't know the difference between boards. I guess I may have to do a Quick search to see if I can find anything. Then there is the matter of waiting. I haven't read anything about when other boards would be available for the 8 series cpu.

 
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michaelhinchey

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Well certainly not all true. There has to be some even of compatibility and usability. And that is what I'm asking on this thead.
I see the z series allows for over clocking and sli. U are most likey correct. I will probably not use those feature's on this board. However I'm like a male version of Veruca Salt and I want it now. Lol

 
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geofelt

geofelt

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First of all, buy a ram kit that is compatible with your selected motherboard.
Ram vendors have apps where you enter your motherboard, and you get a list of supported kits.

Integrated graphics runs better with dual channel ram. buy a 2x ?? kit.
Do not plan on ever upgrading ram.
Adding ram in the future is not guaranteed to work. Ram must be matched.
A motherboard must manage all the ram using the same specs of voltage, cas and speed.
Ram from the same vendor and part number can be made up of differing manufacturing components over time.
Buy whatever you might ever need up front. If budget is not a big issue, buy a 2 x 8gb kit.

Faster ram is good for integrated graphics and for the cpu. You are looking at a 2-5% difference between slow and fast ram for most things.
Faster ram is implemented via the XMP profile and may be limited by either the cpu or the motherboard.
No problem with buying extra fast ram, it will default to a lower speed if necessary.

I would be inclined to buy more than minimum speed ram.
Perhaps 3000 speed ram with lower cas numbers. the cost per GB should not be very different.
 
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Solution
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michaelhinchey

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Oct 3, 2017
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Thank you for your response. I do understand the ram kit as such. I looked up the speeds that were available and all the way from 2100 all the way to 4000 OC. Since my Cpu is only good up to 2400 doesn't that negate the OC part of the equation or can I still Overclock? Although I think it is prob. unnecessary for what I want.
I only mentioned the 2 g of ram x 2. Because I was maybe thinking I could get away without the higher ram count. I'm probably off basis in my thinking but I wanted to cover all grounds. And since 2g x 2g can be had for like 40 bucks. I figured I could just buy cheaper better in the future when they come down in price.
 
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geofelt

geofelt

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I do not think you can buy a 2 x 2gb kit of ddr4 ram. ddr3... ok.
I tried once for a 32 bit os; 2 x 2gb ddr4 is not to be found.

When they talk about faster ram with OC, they are not talking about overclocking the cpu. They are talking about how much faster the ram can operate at greater than the stock 1.2v voltage.
Faster than 3000 will usually need more than 1.2v. That is accomplished via the xmp setting which the motherboard must support.
 
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michaelhinchey

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OK. I thought when you adjusted one let's say the ram, the other, in this case the cpu, needed to be adjusted too. Thank you for explaining that.
So essentially I can get the full use of the 3000 ram speed after setting the xmp setting on?
 
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geofelt

geofelt

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If that is what your motherboard and cpu allow.
In your case, I think yes.
Regardless, the ram will always be capable of running at the default rate.
 
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michaelhinchey

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Cpu says 2400, motherboard states it's good upto 4000 OC.

 
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geofelt

geofelt

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DO NOT buy two individual sticks. They will not be matched and may not run well together, possibly not at all.
Buy a 2 stick matched kit.
My thought is that I would buy a 2 x 8gb kit of the slower speed.
 
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michaelhinchey

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They are both selling their kits they bought to upgrade. I bought the faster speeds. I don't think I'll need 16g of ram and saved about 40 xtra min one way on my drive. I will leave this open because I still would love to hear other people's opinions.
If anyone is curious, I paid 70 bucks for Corsair vengeance lpx ddr4 3000.. The other was 50 bucks for hygex (or something like that )2133 ram. If I decide to upgrade it will be in a few yrs where this ddr will be available on the cheap.
 
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