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Need advice on OC R7 1700, what did I miss?

I get random shut down on my OC even not under load, but not often, say twice a week

My system : r7 1700 / 2x8 corsair docp 3000mhz / asus b350F (before was B350plus) / cm212+ 2fans/ open case

windows power plan : balanced (did not use ryzen balance plan coz clock kept at 3.8 all time)

my target is setting cpu @3.8ghz 

cpu peak temp ~75C / ~60c gaming

 

Tried cpu at stock setting, nothing weird, so memory at 3000hz should be fine.

current settings:

LLC extreme, soc volt 1.2V (I see default should be 1.2v but show 1.1v in hwmonitor so I add 0.1v) /core v 1.3125v~1.35v 

 

Some weird things when testing cinebench, at 1.3v it runs fine, but at 1.35v  screen freezes until test is done (max temp 73-75C).. so I wonder if more voltage can cause unstable?

 

is there any thing I missed?

 

 

 

 

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Always run the lowest voltage possible to start.  If instability occurs, raise the voltage by small incriments until it becomes stable or temps get too high.  If temps get high and its still not stable, you have to back down your overclock.  You may have just gotten a cpu that doesn't like to be pushed.

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B350 boards have shit for VRMs. With your LLC set to extreme, there's a chance they're about to go poof.

Sincerely,

 

me

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1 minute ago, JammyCreedog said:

If instability occurs, raise the voltage by small incriments until it becomes stable or temps get too high

this is where I got frustrated. any good & fast method for testing stability? coz the shutdown is quite rare to meet.

I use cinebench and prime95 for thermals. but I see suggestion for testing al least 2 hours......  

 

side note on autotuner in bios, at default it can go up 3.65ghz at stock volts but still get random shutdown , arent they su

pposed to be stable?

2 minutes ago, aisle9 said:

B350 boards have shit for VRMs. With your LLC set to extreme, there's a chance they're about to go poof.

Vrm temps are fine, just seeing 60~70C,

so why is b350 suggested for OC and was everyone getting 3.9ghz on B350 back in those days? 

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You said you adjusted vcore +0.1, try 0.15 or 0.2. Use hwmonitor and run a longer cinebench test a couple times in a row to make sure your cooler is fully heat soaked. Monitor temps closely, if they approach 90C, abort the test.

 

As another thought maybe take the ram down a notch or loosen up the timings, maybe thats causing the freeze.  Try running memtest.

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Definitely bad idea to use extreme LLC. While LLC solves voltage drop, it makes voltage spikes even worse and that can cause instability just like low voltage.

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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I've never tried to OC on Ryzen, The last cpu i did OC was a 6600k and got it to all core 4.4Ghz. That said, I did back it down to 4.2 for all the time frequency.  I know that AMD does a wierd miltiplier/divider ration thing now and the terminology is different in the bios'es. I just said what worked for me when I did it.

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DDR4-3000 might be too much for the CPU when it is overclocked.

You can also try dropping the DRAM frequency down a notch, to something like 2933 or 2666.

Once you get the CPU overclock stable, you can try and bring the DRAM frequency up again.

 

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1 hour ago, JammyCreedog said:

You said you adjusted vcore +0.1, try 0.15 or 0.2. Use hwmonitor and run a longer cinebench test a couple times in a row to make sure your cooler is fully heat soaked. Monitor temps closely, if they approach 90C, abort the test.

thats the SOC core voltage i mentioned, just say some other post that it should be kept under1.2v, so may be I shall use +0.05 only.

 

1 hour ago, Jurrunio said:

Definitely bad idea to use extreme LLC. While LLC solves voltage drop, it makes voltage spikes even worse and that can cause instability just like low voltage.

so should I just leave it auto?

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2 minutes ago, dgsddfgdfhgs said:

so should I just leave it auto?

B350-F should have high settings for LLC?

CPU: i7-2600K 4751MHz 1.44V (software) --> 1.47V at the back of the socket Motherboard: Asrock Z77 Extreme4 (BCLK: 103.3MHz) CPU Cooler: Noctua NH-D15 RAM: Adata XPG 2x8GB DDR3 (XMP: 2133MHz 10-11-11-30 CR2, custom: 2203MHz 10-11-10-26 CR1 tRFC:230 tREFI:14000) GPU: Asus GTX 1070 Dual (Super Jetstream vbios, +70(2025-2088MHz)/+400(8.8Gbps)) SSD: Samsung 840 Pro 256GB (main boot drive), Transcend SSD370 128GB PSU: Seasonic X-660 80+ Gold Case: Antec P110 Silent, 5 intakes 1 exhaust Monitor: AOC G2460PF 1080p 144Hz (150Hz max w/ DP, 121Hz max w/ HDMI) TN panel Keyboard: Logitech G610 Orion (Cherry MX Blue) with SteelSeries Apex M260 keycaps Mouse: BenQ Zowie FK1

 

Model: HP Omen 17 17-an110ca CPU: i7-8750H (0.125V core & cache, 50mV SA undervolt) GPU: GTX 1060 6GB Mobile (+80/+450, 1650MHz~1750MHz 0.78V~0.85V) RAM: 8+8GB DDR4-2400 18-17-17-39 2T Storage: 1TB HP EX920 PCIe x4 M.2 SSD + 1TB Seagate 7200RPM 2.5" HDD (ST1000LM049-2GH172), 128GB Toshiba PCIe x2 M.2 SSD (KBG30ZMV128G) gone cooking externally Monitor: 1080p 126Hz IPS G-sync

 

Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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Just now, Jurrunio said:

B350-F should have high settings for LLC?

yes, then high it is 

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a little update, I just saw a youtube a 1700x oc to 4.0ghz at AUTO voltage stable but not manually tuned, so I try on my 1700 too. 

impressively I could oc to 3.9ghz at 82c / rm temp 16C, auto voltage at 1.385v relatively stable.

still need testing and will have to lower oc in summer lol

but this result is really unexpected  

On 12/14/2018 at 1:00 PM, -rascal- said:

DDR4-3000 might be too much for the CPU when it is overclocked.

You can also try dropping the DRAM frequency down a notch, to something like 2933 or 2666.

yep and tuning down ram frequency really lasted longer before it crashes

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