MSI's X570 Tomahawk May Become Go-To OC Board??

Yeah you'll probably be able to match my timings.

I noticed you have gear down mode disabled and mine is enabled. Do you know if that affects performance? I left mine on auto which looks like it has defaulted to being on. My understanding is that allows odd RAM timings for CL and tRCDWR etc.
 
SpudMaster said:
Yeah you'll probably be able to match my timings.

I noticed you have gear down mode disabled and mine is enabled. Do you know if that affects performance? I left mine on auto which looks like it has defaulted to being on. My understanding is that allows odd RAM timings for CL and tRCDWR etc.
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It's something that I've been meaning to look into. It's currently set to Disabled because that's what the 1usmus DRAM Calculator reckoned on when I was tweaking RAM with my old 2600 and then 3600X. But I've never checked to see if it makes any meaningful difference by itself.
 
@SpudMaster & @ JRS

You guys manage to get that RAM stable just using XMP settings?

I've had nothing but troublke with that RAM. Passes memtests etc but some games using Unreal engine it crashes after an hour. So annoying. Down clock it to 2400 and it's fine. JUst swapped mobo to this tomahawk as I suspected a weak original board. Nope. Tried DRAM calc SAFE settings.Nope. Awful stuff and apparently every set tested - for 2 mins.
 
Woodsta888 said:
@SpudMaster & @ JRS

You guys manage to get that RAM stable just using XMP settings?
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I dont have XMP enabled on my board, changed everything manually but I found that if I set CMD to 1t from auto my board wouldn't POST and auto defaulted to 2t. But if I XMP and reboot then auto becomes 1t. I then disabled XMP and set everything manually.

There are 2 sections in the bios for overclocking so there was probably a conflict somewhere. You might have a conflict some where
 
Cheers guys, not plug & play as I'd hoped. This RAM causes a Win64.Shipping error on many games. Every time I try to get this RAM to run at it's rated speeds just causes issues and crashes. I'll swap this out I think for some 3600 with looser timings that is on a QVL list as I don't really like faffing to get stuff that should work XMP at it's rated speed. Only ever stable in games at 2400 for me. Good stuff for benching if you are into it but too much messing around for everyday stuff. CBA spending hours testing just to get rated speed.
 
Woodsta888 said:
Cheers guys, not plug & play as I'd hoped. This RAM causes a Win64.Shipping error on many games. Every time I try to get this RAM to run at it's rated speeds just causes issues and crashes. I'll swap this out I think for some 3600 with looser timings that is on a QVL list as I don't really like faffing to get stuff that should work XMP at it's rated speed. Only ever stable in games at 2400 for me. Good stuff for benching if you are into it but too much messing around for everyday stuff. CBA spending hours testing just to get rated speed.
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Tried manually setting 1.45V and 3600-CL14-15-15-30? That ought to be easily stable.
 
JRS said:
Tried manually setting 1.45V and 3600-CL14-15-15-30? That ought to be easily stable.
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Those are the same as DRAM safe settings which I tried yesterday but it wouldnt POST and failed RAM overclcok. Though DRAM calc says MAx 1.4. This stuff is rated to 1.5V I think so I may bump the voltage and try that. And check the 1T 2T thing.

Thanks muchly for your help!
 
Woodsta888 said:
Those are the same as DRAM safe settings which I tried yesterday but it wouldnt POST and failed RAM overclcok. Though DRAM calc says MAx 1.4. This stuff is rated to 1.5V I think so I may bump the voltage and try that. And check the 1T 2T thing.

Thanks muchly for your help!
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Do you have the 8pack RAM? 1.5v should be fine for b-die. Are you using the latest bios with your board. Do you have access to another system that you can test the RAM in?
 
SpudMaster said:
Do you have the 8pack RAM? 1.5v should be fine for b-die. Are you using the latest bios with your board. Do you have access to another system that you can test the RAM in?
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Yes the 8PAck stuff 3600 CL16. Latest BIOS on the X570 tomahawk which is new to me. Not another PC but have swapped out the MOBO. That leaves the RAM or the CPU with rubbish IF. But I'm just trying to get the RAM run at it's 'rated' speed with an 1800Mhz IF. Dont really want it to run any more than it's 3600Mhz. Reason I bought 3600 was so I didnt have to OC the 3200mhz stuff.

I 'should' just be able to draw the XMP profile, though the RAM isn't on the QVL as AFAIK.

Been building PC's for 25 yrs and this is the 1st time had to mess with RAM which was OK at first as learnt something new, but the same crash in more than one game is known to be linked to system RAM. Fed up with it now. Wonder if some more well known RAM @: 3600 will just work via XMP as I've been to the moon & back through DRAM calcs etc etc and been dmessing with it from the start. I just want some 3600Mhz that'll work XMP. MAy just buy some and sell this 8 pack stuff as it's expensive now.
 
@Woodsta888 Is it only during games you see instability? If so you might have ran into the good old "Igor" problem. I would be very surprised if a 1.35v XMP is spitting errors even with a 3080 blowing on it but I've seen crazier things.

I actually don't know if the MSI boards auto to gear down mode being enabled but ensure that is on or go the other way with gear down mode off and 2t. Also just in the off chance because I never let the easiest solution go by, make sure RAM is in slot 2 and 4.
 
Woodsta888 said:
Yes the 8PAck stuff 3600 CL16. Latest BIOS on the X570 tomahawk which is new to me. Not another PC but have swapped out the MOBO. That leaves the RAM or the CPU with rubbish IF. But I'm just trying to get the RAM run at it's 'rated' speed with an 1800Mhz IF. Dont really want it to run any more than it's 3600Mhz. Reason I bought 3600 was so I didnt have to OC the 3200mhz stuff.

I 'should' just be able to draw the XMP profile, though the RAM isn't on the QVL as AFAIK.

Been building PC's for 25 yrs and this is the 1st time had to mess with RAM which was OK at first as learnt something new, but the same crash in more than one game is known to be linked to system RAM. Fed up with it now. Wonder if some more well known RAM @: 3600 will just work via XMP as I've been to the moon & back through DRAM calcs etc etc and been dmessing with it from the start. I just want some 3600Mhz that'll work XMP. MAy just buy some and sell this 8 pack stuff as it's expensive now.
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Simply setting XMP is often not enough... often the VDIMM voltage doesn't get changed by XMP, also you often need to increase the voltages associated with the memory controller on the CPU.
 
So after more thorough testing last night, 3 hours on Realbench, and about 3 hours gaming I decided to run the Ryzen RAM Calculator MemBench. After about 40 seconds I through up some errors. So I've bumped up the CPU SoC voltage from 1.106v to 1.118v and lowered the CPU CLDO Voltage to 1.219v. Ran the MemBench again ran fine without any errors. Going to leave it like it is for a bit now to confirm stability before I try and lower the DRAM voltage.
 
So after a few days of living the high life at 3800mhz cl14 I've decided to go back to 3600mhz.

System seemed to be stable, didn't have a single crash or error but I also didn't seem to get any worthwhile performance increase. All games I tested were within 1fps of each other at either 3800 or 3600mhz. So I figured whats the point running the extra voltage through the ram. Benchmarks probably show a difference but you can't play them..:p
 
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Yea that's a fact about benchmarks. The graphs show huge differences between this and that but in reality it is milliseconds or 1 or 2 fps, sometimes just not worth all the crashes and frustration.

I just pick a safe overclock to take it above stock but not so much that it risks the system. I can see the appeal in getting every last drop out of it but I don't tend to upgrade much so want the system to last and not constantly on the edge.
 
GregI said:
@Woodsta888 Is it only during games you see instability? If so you might have ran into the good old "Igor" problem. I would be very surprised if a 1.35v XMP is spitting errors even with a 3080 blowing on it but I've seen crazier things.

I actually don't know if the MSI boards auto to gear down mode being enabled but ensure that is on or go the other way with gear down mode off and 2t. Also just in the off chance because I never let the easiest solution go by, make sure RAM is in slot 2 and 4.
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Stu said:
Simply setting XMP is often not enough... often the VDIMM voltage doesn't get changed by XMP, also you often need to increase the voltages associated with the memory controller on the CPU.
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Cheers guys!

I've bought some cheap 3600 corsair C18 DDR4 and set at XMP. No crashes after hours and a good few days of gaming.

IS the 8pack stuff that temperamental that it wont work at XMP? I'd have bought the cheaper 3200 otherwise. I paid for the 3600Mhz stuff 16,16,16,36 rated. SO the extra I paid, I take the rated speeds that are extra money, works at XMP? PAid for the higher rate for no faff.
 
Woodsta888 said:
Cheers guys!

I've bought some cheap 3600 corsair C18 DDR4 and set at XMP. No crashes after hours and a good few days of gaming.

IS the 8pack stuff that temperamental that it wont work at XMP? I'd have bought the cheaper 3200 otherwise. I paid for the 3600Mhz stuff 16,16,16,36 rated. SO the extra I paid, I take the rated speeds that are extra money, works at XMP? PAid for the higher rate for no faff.
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It should work at its rated XMP settings and b-die ram is know to work well with Ryzen. I wouldn't be surprised if the set you recieved is faulty
 
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