[SOLVED] Memory OC gone wrong.

[LrsLex]

I tried a memory OC with DRAM Calculator values and voltages. Now computer wont boot up. First time after failed boot I got to BIOS when mobo safe booted automatically, now I can't even get a signal to my displays. Removed CMOS battery, no effect besides GPU fans not blasting full anymore. Any tips to get this running?

Asus Prime B350 Plus
R5 1600X
Corsair Vengeance 3000 16 GB (2X8GB)
Rtx 2070

Thanks-

 

[drea.drechsler]

I tried a memory OC with DRAM Calculator values and voltages. Now computer wont boot up. First time after failed boot I got to BIOS when mobo safe booted automatically, now I can't even get a signal to my displays. Removed CMOS battery, no effect besides GPU fans not blasting full anymore. Any tips to get this running?

Asus Prime B350 Plus
R5 1600X
Corsair Vengeance 3000 16 GB (2X8GB)
Rtx 2070

Thanks-

Did you also short the CMOS Reset pins?

Remove battery, short pins and leave it that way for a couple hours. Then put it back together and try again. Probably overkill, but you're out of action right now anyway.

You need to be on a very late BIOS to get good overclocking of RAM with Ryzen 1000 CPU. Even then it's safer to start at a low overclock and work up. Also be sure to characterize the type of DRAM chips on your DIMM's using Taifun first so you get meaningful overclocking values in DRAMCalculator.

The last thing is double/triple/quadruple check that you've entered all those timing values correctly.

 

[LrsLex]

Did you also short the CMOS Reset pins?

Remove battery, short pins and leave it that way for a couple hours. Then put it back together and try again. Probably overkill, but you're out of action right now anyway.

You need to be on a very late BIOS to get good overclocking of RAM with Ryzen 1000 CPU. Even then it's safer to start at a low overclock and work up. Also be sure to characterize the type of DRAM chips on your DIMM's using Taifun first so you get meaningful overclocking values in DRAMCalculator.

The last thing is double/triple/quadruple check that you've entered all those timing values correctly.

Thank you!

Shorting the pins did the trick!
I was worried I managed to f*** up my memory somehow, as I read Thaiphoon can do that (even though I only got the memory info from there).

I have my 1600X OCd at 4.1 GHz and the ASUS D.O.C.P. manages to get my memory to 2993 MHz with the automatic settings. I was just curious if the tightened timings would make a difference in everyday responsiveness of the system. I guess in gaming it's a wasted effort since I usually play in 4K and so I'm GPU bottlenecked anyway?

 

[drea.drechsler]

Thank you!

Shorting the pins did the trick!
I was worried I managed to f*** up my memory somehow, as I read Thaiphoon can do that (even though I only got the memory info from there).

I have my 1600X OCd at 4.1 GHz and the ASUS D.O.C.P. manages to get my memory to 2993 MHz with the automatic settings. I was just curious if the tightened timings would make a difference in everyday responsiveness of the system. I guess in gaming it's a wasted effort since I usually play in 4K and so I'm GPU bottlenecked anyway?

Ahhh...tightening up timings is very much an iterative process. It probably won't help a lot, especially with gaming, but if your DOCP settings are super loose it could help some. Definitely go slow and don't be afraid to use a higher than you may think safe voltage for your DIMM.

Many DRAM's scale very well with voltage, so a high voltage could do the trick for low timings. Remember this: the DDR4 spec REQUIRES all DRAM's to be tolerant of 1.5V but that's a 'stress' voltage. Meaning you can safely operate that high only for a short duration, above that only for an 'OMG' moment then shut down. Most people try to stay at 1.40 and under for assured long life; some DRAM (Samsung b-die) is very tolerant of higher volts and actually likes it; 1.45 is a good top end for them.

So when trying new and "tight" timings it's safe to try a really high voltage (like 1.49, 1.50 if you know your memory VRM is accurate) to see if it's capable then back it down for routine operation. Once you find the lowest stable make your decision if it's worth it.

 

[LrsLex]

Ahhh...tightening up timings is very much an iterative process. It probably won't help a lot, especially with gaming, but if your DOCP settings are super loose it could help some. Definitely go slow and don't be afraid to use a higher than you may think safe voltage for your DIMM.

Many DRAM's scale very well with voltage, so a high voltage could do the trick for low timings. Remember this: the DDR4 spec REQUIRES all DRAM's to be tolerant of 1.5V but that's a 'stress' voltage. Meaning you can safely operate that high only for a short duration, above that only for an 'OMG' moment then shut down. Most people try to stay at 1.40 and under for assured long life; some DRAM (Samsung b-die) is very tolerant of higher volts and actually likes it; 1.45 is a good top end for them.

So when trying new and "tight" timings it's safe to try a really high voltage (like 1.49, 1.50 if you know your memory VRM is accurate) to see if it's capable then back it down for routine operation. Once you find the lowest stable make your decision if it's worth it.

You've been very helpful, thank you!

My BIOS definitely needs to be updated, I think my current one is from late 2018.
In DRM calculator I don't know if the frequency should be 3000 or 2993 as the DOCP sets it and to what setting the DOCP should be set in BIOS when manually inputting the values (there's DOCP, DOCP standard and 'auto'. No 'off' option).

Then there's a bunch of other options in VRAM calculator misc items and termination block I don't know whether to apply or not. The guide I watched didn't go into so much detail.

DramCalc

Then again, if every time i fail to boot up I have to reset CMOS manually, maybe I'll just leave it be. Especially when the benefits of the OC are slim at best.

 

[drea.drechsler]

You've been very helpful, thank you!

My BIOS definitely needs to be updated, I think my current one is from late 2018.
In DRM calculator I don't know if the frequency should be 3000 or 2993 as the DOCP sets it and to what setting the DOCP should be set in BIOS when manually inputting the values (there's DOCP, DOCP standard and 'auto'. No 'off' option).

Then there's a bunch of other options in VRAM calculator misc items and termination block I don't know whether to apply or not. The guide I watched didn't go into so much detail.

DramCalc

Then again, if every time i fail to boot up I have to reset CMOS manually, maybe I'll just leave it be. Especially when the benefits of the OC are slim at best.

You really should set up everything as recommended. But termination block setting are something you could set even if you don't do anything else. Since that has a major impact on training memory at bootup.

Once you've determined what type of DRAM chips you have (Samsung/Hynix/CJR/MFG/b-die/e-die, etc. and etc.) and entered that into calculator and read in the XMP data I'd pick to calculate SAFE values. At first, just calculate for the same memory speed that they are rated for. Then enter those values as they'll probably be tighter timings than you're using.

But as I said, you need to enter all timing values since many are inter-related and dependent. You could forgo entering the CLDO voltages, though. That's a lot to enter but doing it carefully will make for best success. I've also entered the Advanced tab settings but only in the CAD_BUS timings block

 

[LrsLex]

Once you've determined what type of DRAM chips you have (Samsung/Hynix/CJR/MFG/b-die/e-die, etc. and etc.) and entered that into calculator and read in the XMP data I'd pick to calculate SAFE values. At first, just calculate for the same memory speed that they are rated for. Then enter those values as they'll probably be tighter timings than you're using.

I did (almost) exactly that. Can't remember if I calculated the safe or fast option. Thaiphoon says I have Hynix rank 1 memory and i think it's AFR since that's in the component serial number:

Module Manufacturer:	Corsair
Module Part Number:	CMK16GX4M2B3000C15
Module Series:	Vengeance LPX
DRAM Manufacturer:	Hynix
DRAM Components:	H5AN8G8NAFR-TFC
DRAM Die Revision / Process Node:	A / 21 nm

Then I set frequency to 3000 as that's what the memory is rated. Then I applied every value (I could find in BIOS) from the main tab of DRAM calculator. Didn't get anything from the 'advanced' tab as the tutorial I was following didn't say anything about that.

procODT was recommended at 53. Closest to that in BIOS was 53.3 so I picked that.
Other than that and the old BIOS, I can't think of settings I could try differently. Maybe V2 profile version if all else fails.

 

[drea.drechsler]

I did (almost) exactly that. Can't remember if I calculated the safe or fast option. Thaiphoon says I have Hynix rank 1 memory and i think it's AFR since that's in the component serial number:

​

Module Manufacturer:	Corsair
Module Part Number:	CMK16GX4M2B3000C15
Module Series:	Vengeance LPX
DRAM Manufacturer:	Hynix
DRAM Components:	H5AN8G8NAFR-TFC
DRAM Die Revision / Process Node:	A / 21 nm

Then I set frequency to 3000 as that's what the memory is rated. Then I applied every value (I could find in BIOS) from the main tab of DRAM calculator. Didn't get anything from the 'advanced' tab as the tutorial I was following didn't say anything about that.

procODT was recommended at 53. Closest to that in BIOS was 53.3 so I picked that.
Other than that and the old BIOS, I can't think of settings I could try differently. Maybe V2 profile version if all else fails.

If you want to experiment, try the alternate ProcODT values and setting DIMM voltages higher, up to maximum suggested. After that, the trials get more and more like going down a rabbit hole.

In the end, Ryzen 1000 wasn't nearly as good as 3000 or even 2000 processors for memory overclocking; and B350 boards, many of them, were also sketch. If the DIMMs' XMP settings get you reliable operation that may be the best you'll get and trying for anything more would be for the fun of exploring your hardware. Your choice.