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Cheap Fast Memory Kits

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I've been eyeballing this Patriot Viper Steel 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 4400 (PC4 35200)  memory kit for about 2 months. I want to replace my test system memory. It has slowly gone down in price. For the Ryzen Platform it is overkill but It can easily be tweaked to 3800 CL14. The only retail kit that can do this is the G.SKill NEO 3800 and costs about $100 more.

If you don't care about RGB lights, this is a steal. I'm sure other kits can do DDR4 3800 CL14, but they all cost more. Best I can do with my G.SKill Ripjaw V 3200 is 3800 CL16 @ 1.42v or 4266 CL19 and that kit still costs more!

I'll find out in a few days how plug and play these are. But considering its high binned Samsung-B die, I cannot see this being a problem. It might even boot to 4400 on the ASUS 570X ROG Crosshair Hero. We will see...

Edit: For those gamers, from the tests i've ran, 3000 to 3800 has little impact on FPS. Mostly within margin of error. Above 3800 the FCLK ratio breaks and a latency penalty is introduced. I haven't done much testing on this part. I'm hoping to get a article out by the end of the year. Nothing ground breaking as other people have already done similar tests.

---

Here is my final DDR4 3800 Settings with that Patriot 4400 Kit. No reason to go higher on the Ryzen platform unless you can get the FCLK to match. Passes Memtest86 - 100% stable for my system. You may have to adjust the TRFC and / or VDDG voltage to get it to boot.

 

3800-1900-CL14.png

CPU Settings:

Memory Frequency = [DDR4-3800 MHz]
FCLK Frequency = [1900 MHz]

CPU / SOC / Memory Voltages:

CPU Core Voltage = [Manual mode]
- CPU Core Voltage Override = [1.325] (unrelated to memory overclocking)
CPU SOC Voltage = [Manual mode]
- VDDSOC Voltage Override = [1.12500]
DRAM Voltage [1.500]
VDDG CCD Voltage = 1.025
VDDG IOD Voltage = 1.025
CLDO VDDG voltage = .900 (Some BIOS just reads it as 900)

1.8V PLL Voltage [Auto]
1.05V SB Voltage [Auto]

Memory Timings:

DRAM CAS# Latency [14]
Trcdrd = [16]
Trcdwr = [13]
DRAM RAS# PRE Time [13]
DRAM RAS# ACT Time [27]
Trc = [40]
TrrdS = [5]
TrrdL = [6]
Tfaw = [16]
TwtrS = [4]
TwtrL = [12]
Twr = [12]
Trcpage [Auto] = 0
TrdrdScl = [4]
TwrwrScl = [4]
Trfc = [294]
Trfc2 = [495]
Trfc4 = [336]
Tcwl = [16]
Trtp = [8]
Trdw = [9]
Twrrd = [1]
TwrwrSc = [1]
TwrwrSd = [7]
TwrwrDd = [7]
TrdrdSc = [1]
TrdrdSd = [5]
TrdrdDd = [5]
Tcke = [1]
ProcODT = [40 ohm]
Cmd2T = [1T]
Gear Down Mode = [Enabled]
Power Down Enable = [Disabled]
RttNom = [Disabled]
RttWr = [Disabled]
RttPark = [RZQ/5(48)]

MemAddrCmdSetup = Grayed Out
MemCsOdtSetup = Grayed Out
MemCkeSetup = Grayed Out
MemCadBusClkDrvStren [24.0 Ohm]
MemCadBusAddrCmdDrvStren [20.0 Ohm]
MemCadBusCsOdtDrvStren [24.0 Ohm]
MemCadBusCkeDrvStren [24.0 Ohm]

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I thought I would bump this up again. I've had this memory kit for a month now. It still drops to $130 on sale. Easily the fastest and cheapest memory kit you can buy if you want Samung-B Die and the ability to hit 4800 (intel) or drop to 3800 CL14 (AMD). Managed to get it down to 3800 14-14-14-34-50-T1. Rocks the socks off some of those 3200 kits.

Not sure why AIDA64 reads it has 14-15 for 3800 and 20-19 for 4400. It is in fact lower and verified in a few other programs.

 

3800 14-14-14-34-50-T1 @1.45v

3800-CL14_geardown_off.png

4400 19-19-19-40?-65-T1 @1.45v

4400.png

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You overclocked it so high that the system cant tell anymore. Congratulation. :lol:

 

Steller results dude. I look forward to seeing more. I am however curious about the longevity of the AMD Ryzen series. I only get to upgrade once every 5-10 years so I am hard pressed to try AMD out a second...third... time.

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Opps not sure why i wrote CL15 for the 4400 speeds. I got it down to 17 but I didnt play around with it much. The AIDA64 screenshot is stock XMP.

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For 100% stable 4400 CL17,.. these looser timings should work with X570.

attachment.php?attachmentid=73709&d=1525644645

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4400 CL17 took 1.5v and it was stable. Even though it passed Memtest86 multiple times, every once in a while it would get stuck in a boot loop. I'm guessing the memory controller voltage wasn't high enough.

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For 24/7 assured stability MemtestHCI is the best choice, also use the Pi billionth digit test. If a DRAM profile completes MemtestHCI and the Pi 1B test, it's good to go.

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Hmm.. I the only program I've found that doesn't require a installed OS is Memtest86. I like it because I don't want to worry about corrupting windows (because it can happen easily during boot). It is much quicker to do stability tests of new timings from booting to a flash drive. Usually it will give errors within 1-3 minutes. Make more adjustments and do it again.

I would say once it passes Memtest86, than you can move onto windows based software like AIDA64, MemtestHCI or whatever stresses the memory in windows. At that point its kinda of redundant. If it passes Memtest86, the memory is stable. This is why you overclock the CPU and memory separately to eliminate the chance of the CPU OC causing the issues, or vise-versa.

As a example, I overclock the CPU and it passes AIDA64 and Prime95 24 hour stability test. Now I set to back to defaults. Set the memory to the desired speeds and work and timings. Lock that in with Memtest86. Now set both CPU and memory and run Memtest86 again and than AIDA64 and Prime95. You might need to be minor voltage tweaking for SOC, CPU or IF to avoid a failed boot loop.

I just wish I had software to do the same for the CPU. It would save a lot of windows re-installs. Linux has a few programs, but I haven't looked into it enough to know how good it is.

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Thanks for the information, going to make a Memtest86 disk tonight. :yes:

I swapped out my memory yesterday, going to try a Corsair 3866MHz kit with active cooling fan. https://www.corsair.com/us/en/Categories/Products/Memory/DOMINATOR®-PLATINUM-16GB-(2-x-8GB)-DDR4-DRAM-3866MHz-C18-Memory-Kit/p/CMD16GX4M2B3866C18

My motherboard only has two memory dimm slots, and has a dimm-2 slot for M.2 drives next to memory with a heatsink that is about 1/2 inch taller than memory modules. Everything is crammed together side by side without much airflow.  https://imgur.com/a/2n7RpUr

I'm hoping the active cooling fan fits over memory and M.2 heatsink,.. looks like it will fit but will find out tonight. Thought about adding the fan after running 4400MHz @ 1.5V and checking my memory, and M.2 drives temps the other day. :whoa:

The corsair 3866 kit is old school 20 nm B-die with A0 PCB. 

 

They have nice read, write, and latency benchmark at default XMP settings, going to see how well they overclock this weekend.

 

 

 

 

Edited by Braegnok

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I need to get myself a i9-9900K. Looks at that Latency! Wanna trade :):)

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OK,.. :no:

I got the fans installed, it's exactly what was needed,.. memory has tons of cool air flowing across it now.  https://imgur.com/a/zH6PtEz

With 1502 BIOS, a nice 24/7 4133MHz CL17 @ 1.4V.

 

 

 

 

Edited by Braegnok

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Since the price went up because B-Die is discontinued  I found two more kits that are probably also Samsung B-Die. $160 is still $200 less than G.Skill or Corsair.

Team T-Force XTREEM 16GB (2 x 8GB) 288-Pin DDR4 SDRAM DDR4 4500 (PC4 36000) Desktop Memory Model TXKD416G4500HC18EDC01 $190

Thermaltake TOUGHRAM RGB Memory DDR4 4400MHz 16GB (8GB x 2) R009D408GX2-4400C19A $160

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