PC 10min Bootup Time with 4 Ram Sticks
Posted by tamiiinooo@reddit | buildapc | View on Reddit | 22 comments
Yes, call me out, At the time I've build my PC (9800X3D, RTX 5080 and 4x32gb DDR5 6600MHZ RAM) I dind't know that 4 Ram Sticks on DDR5 could be an issue. I just didn't inform myself enough.
I noticed that my ram was just running at 3600MHz, which is almost half the advertised speed. So i went into the bios and tried DOCP, but then the PC didn't start. Tried with 2 sticks, worked perfectly on 6600MHz.
I increased the following voltages:
CPU SOC Voltage to 1.25V
DRAM VDD/VDDQ to 1.40V
CPU VDDIO / MC to 1.35V
And set the ram to 4800MHz and after 10min of startup time the system starts and works perfectly.
I can speedup the startup to normal sub 60s when having the options Memory Context Restore and Power Down Enable set to Enabled.
But as far as I know this shouldn't be a permanent fix, since little differences in temp etc. could cause a crash when it's not trained again. But 10min startup isn't feasable.
So my question:
Is it okay to have Memory Context Restore enabled for the ram to not train everytime and are the voltages okay?
Should I keep running my system and the automatic setting 3600MHz? (Which would be a shame for this build)
Or should I just remove 2 Sticks and run with DOCP and the full 6600mhz?
I mostly use my PC for gaming.
Thanks!
Successful-Snowman@reddit
Sounds like a decent rig. Have you already set XMP (or that AMD equivalent) for the sticks? Boot time shouldn't really depend on the number of sticks though: I have 4 x 8GB (don't ask why) and POST takes long only because of the HDD spinning up.
tamiiinooo@reddit (OP)
Thanks! Yes I've set it to DOCP, wich should be the equivalent to XMP. What speed does your RAM get to in XMP and do you have DDR5 or 4?
Successful-Snowman@reddit
Yeah, DOCP should read the tiny chip on the sticks the same way as XMP does, and should set the clocks right. I have some budget Kingston DDR5 sticks at 4800MHz, and they all obey the XMP settings and work at the same speed. Zero problems, except after every BIOS update I have to enable XMP again but that's not too much of a hassle. I guess, or hope that your sticks are all the same brand & speed too? Because that's kinda the key to successful RAM stuff nowadays; you can't mix and match brands and speeds as freely as you'd do with DDR3 (I skipped DDR4 altogether so I have no clue about those).
mutualdisagreement@reddit
Sell 2x (2x 8 GB 6600) RAM, buy 2x 16 GB 6000 - should be +/-0$
Internal Memory Controller of AMD Ryzen can't handle it, 3600 is default for 4 RAM banks. You beat it up to 4800 and are still within the voltage limits of a safe operation. But especially X3D dieing left, right and center - not only on ASRock boards - many due to RAM OC, not even manually dialing them in but just usig EXPO. Might work for a certain period of time, but it's russian roulette with the CPU with every power on cycle. Or you trust your CPU's cooling solution to be good and fast enough, just don't let the thermal paste dry or pump out.
tamiiinooo@reddit (OP)
Well, it's 128GB total, so I would still have 64GB with just 2 sticks, which is probably plenty. Appreciate the answer!
Powerful-Ad2869@reddit
4 sticks, remove 2, now u have 2. which is perfect, sell the other 2
tamiiinooo@reddit (OP)
š¤£ Got it, thanks
Julio_Ointment@reddit
My ASUS boards with DDR5 do this. It was the memory context restore switch. Search the UEFU BIOS and change it anywhere you find it.
tamiiinooo@reddit (OP)
Yes that works for me aswell. But I'm not sure if 'guessing' the training values from the last boot is a good idea for the long run with this setting switched.
enso1RL@reddit
Trying to force 4 sticks to run expo is too much stress on the memory controller. I don't believe AM5 provides quad channel support. Only HEDT like threadripper systems can do this
Optimal setup is 2 sticks of RAM, usually populated in A2 and B2 slots for dual channelĀ
tamiiinooo@reddit (OP)
Makes total sense. Appreciate your answer!
kawaii_Summoner@reddit
You'll never use 64gb for strictly gaming. I would sell 2 sticks and never look back.
tamiiinooo@reddit (OP)
Apprechiate the answer!
SmokBarrage@reddit
Just run 2 sticks. 64gb is overkill for gaming already, why run your system slower for 128gb you'll never use?
tamiiinooo@reddit (OP)
Fair point
PusheenHater@reddit
Don't you have to set the RAM to EXPO?
tamiiinooo@reddit (OP)
I set it to DOCP. If I'm not mistaken, that's just the ASUS version of EXPO/XMP. But either way, it doesn't POST at the rated 6600MHz with all 4 sticks.
ex1st3nzzz@reddit
Im not a huge pc nerd, but which motherboard do u use? Because i believe its motherboard issue when it doesnt supports 4 sticks very well
tamiiinooo@reddit (OP)
it's the ASUS ROG STRIX X870E-E GAMING WIFI
Morkinis@reddit
Did you already use this PC or just built?
tamiiinooo@reddit (OP)
I've used the PC since about one year
FReeDuMB_or_DEATH@reddit
Only supporting 2 sticks of ram is AM5's biggest crutch.Ā