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Buying more ram question. Clueless idiot 16/10/05(Wed)19:40 No. 22224 ID: 19a0db
22224

File 147568923330.jpg - (71.71KB , 768x960 , 12832378_10208052224437434_4317864982043478232_n.jpg )

I current have the AX4U2800W4G17-BRZ 2 4gb sticks for my pc. I know you can mix ram but can I get a AX4U2800W4G17-DRZ with my current setup I have now and how much performance lost will I get if I mix the 2.

Specs:
Operating System
Windows 7 Ultimate 64-bit SP1
CPU
Intel Processor @ 3.40GHz
RAM
8.00GB
Motherboard
ASRock X99M Killer/3.1 (CPUSocket)

Graphics
DELL 1704FPT (1280x1024@60Hz)
VG248 (1920x1080@60Hz)
2047MB NVIDIA GeForce GTX 1060 6GB (MSI)
Storage
2794GB TOSHIB DT01ACA300 SCSI Disk Device (SATA)
119GB ADAT SP900 SCSI Disk Device (SSD)
4657GB Seagate Expansion Desk USB Device (USB (SATA))
14GB Kingston DataTraveler G3 USB Device (USB)
Optical Drives
No optical disk drives detected
Audio
Realtek High Definition Audio


>>
Clueless idiot 16/10/05(Wed)19:41 No. 22225 ID: 19a0db

pic unrelated*


>>
Anonymous 16/10/06(Thu)00:16 No. 22227 ID: 8629ab

More than 8Gb is unnecessary for most people.

Unless it's bottlenecking your system I see no point.


>>
Anonymous 16/10/06(Thu)00:20 No. 22229 ID: 5a53ee
22229

File 147570602524.jpg - (845.91KB , 1275x1650 , fear_mbp.jpg )

Based on AData's product list:
http://www.adata.com/en/xpg-dram/orderinfo/305

It looks like those two modules are the same speed with the same timings. They are likely the same underlying module with slightly different packaging (like a stylistically different heatsink).

If they are the same module, then you should be able to use them with each other without any kind of speed penalty. You will not want to spread the modules across channels, however - channel A should be matched DIMMs from the same kit, channel B should be the same. Mixing & matching RAM within the same channel is a recipe for pain.

Now, that being said, I don't see either of them on the QVL for your motherboard. I would post a link to the QVL except 7chan apparently doesn't like people posting links to active server pages, so I'd really rather not get banned again for trying to post innocuous technical information. If you type ASRock X99M Killer 3.1 QVL into Google the second result should be a link to ASRock's QVL page, which contains a link to your motherboard.

Basically your motherboard (and most motherboards, for that matter) are only guaranteed to work reliably with a list of modules that they've tested with that motherboard. If you want your system to work reliably then you buy modules off the QVL. If you want to take a chance then you can buy any module, but if you have trouble not even ASRock will help you resolve the issue.

Now, all that being said, I have two sets of 2400 modules in my PC that works fine so long as they're installed as individual pairs. They're on the QVL and are the same thing you're probably looking at here, the same module with different heatsinks. However when I install all four of them the motherboard won't POST if they're run at 2400. It will POST if I downclock them to 2300. For some added cushion I normally leave them at 2200 to avoid any chance of memory issues.

So QVLs exist and can be used to head off a lot of problems, however even then some combinations can be problematic and require additional effort.


>>
Clueless idiot 16/10/06(Thu)00:30 No. 22230 ID: 19a0db

>>22229
Thank you very much for the information. I will take my chances and go with mixing the AX4U2800W4G17-BRZ and the AX4U2800W4G17-DRZ. Surprisingly that ram cam prebuilt from Ibuypower.


>>
Anonymous 16/10/06(Thu)01:48 No. 22231 ID: 5a53ee

>>22230
Not surprising, since ibuypower just buys the cheapest product they can find that meets the specs on paper and don't give a shit if it works or not.

They've shipped systems with holes punched through the motherboard.



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