overclock Thoughts on my first ever overclock (CPU, GPU, RAM)

[leyo96]

Hello,

As I built my first pc I as well overclocked for the first time, I'm pretty proud about my results but of course I'm always open for suggestions from who knows better than me.

 

Specs:

-I7 8700K delidded

-MSI Z370 Gaming pro Carbon

-2 x 8GB Corsair Vengeance LPX 3000Mhz CL15 (15-17-17-35 2T)

-RTX 2080 Asus Dual OC (1800Mhz core & 7000Mhz Memory)

-Schythe Fuma Rev. b

-Bitfenix whisper M 650w

-Silverstone RL 06 GP

 

CPU temperatures are after Realbench Stress test

Case, CPU fans are all running at about 60/70%. I could increase fan speed and get lower temps but I don't need it.

 

CPU:

5.1 Ghz at 1.4V (adaptive). No AVX offset. (Sometimes Vcore goes to 1.408V)

Temp: CPU: 72C max 77C / MOS: 60C

I had to increase core ICCMax to 217A to don't throttle from current limit.

I had to play a little bit in BIOS with Vcore and LCC to get a stable 1.4V when stress testing. Vcore: 1.395, LCC: mode 5

 

GPU temperatures are after running unigine heaven Benchmark Ultra at 4K.

Fans are at ~ 62%

GPU:

Core: 2040/2055Mhz (+145) / Memory: 7750Mhz (+750)

Temp: 66C max 67

This one is the easiest, first thing of course I turned Power draw to the max (120%), Vcore offset (%) is at 0

 

Memory:

3200Mhz at 1.392V

SA: 1.168V / IO: 1.152V

Timings: 14-17-17-32 / CT: 1T / Trfc: 500T

I'm really proud of this OC since I was reading that is probably the hardest (I din't touch secondiary and tertiary timings though). Although considering I paid 115€ for the sticks and similarry performing sticks are around 195€ I think I did a good job.

 

Should I OC the cache next? XD Currently at 4.4Ghz

 

Thanks to everybody who helped me in the process of choosing the right parts and Overclocking.

 

UPDATE:

-Trfc: 400

-Trefi: 50000

Cache: 4.8Ghz (from 4.4), same CPU temps, MOS is at 72C.

I had to dial down GPU core to 2040Mhz instead of 2055 since it wasn't fully stable.

 

Thanks for the tips

 

Edited March 12, 2019 by leyo96
Updated

[Jurrunio]

can tRFC go lower? In the secondary timings there should be tREFI, raise that up as much as possible.

 

do overclock the uncore, but don't increase core voltage or give up core clock for it.

[leyo96]

11 minutes ago, Jurrunio said:

can tRFC go lower? In the secondary timings there should be tREFI, raise that up as much as possible.

 

do overclock the uncore, but don't increase core voltage or give up core clock for it.

I can try lower tRFC but it's very late and I'm tired so I'll do it tomorrow. I didn't touch tREFI since I read it can be dangerous and can corrupt data. 

What tRFC can I expect? 

 

Thanks for the tip for the uncore! Should I leave all the other voltage settings to auto except for Vcore, sa and Io while OC the cache?

[Jurrunio]

9 minutes ago, leyo96 said:

I can try lower tRFC but it's very late and I'm tired so I'll do it tomorrow. I didn't touch tREFI since I read it can be dangerous and can corrupt data. 

What tRFC can I expect? 

 

Thanks for the tip for the uncore! Should I leave all the other voltage settings to auto except for Vcore, sa and Io while OC the cache?

for 3000 C15 kits lowering tRFC to 400 shouldn't be too difficult, maybe try 450 first.

 

tREFI at 40000 should be a safe place to start. Any kinds of overclock can corrupt data so you are better off creating a restore point for your OS before overclocking anything in the first place.

 

SA and IO should be around 1.2V, and under no circumstances (except sub ambient cooling) should you go past 1.35v

[leyo96]

6 hours ago, Jurrunio said:

for 3000 C15 kits lowering tRFC to 400 shouldn't be too difficult, maybe try 450 first.

 

tREFI at 40000 should be a safe place to start. Any kinds of overclock can corrupt data so you are better off creating a restore point for your OS before overclocking anything in the first place.

 

SA and IO should be around 1.2V, and under no circumstances (except sub ambient cooling) should you go past 1.35v

Sa and io are under 1.2, although before I touched them they were super high in auto (like 1.36 and 1.32).

 

Ram is running at 3200 now so I know I have less headroom to go down, but I'll try. 

 

I'll just set tREFI at 40000 then. 

 

Of course I have a backup 

 

Thank you

[leyo96]

12 hours ago, Jurrunio said:

for 3000 C15 kits lowering tRFC to 400 shouldn't be too difficult, maybe try 450 first.

 

tREFI at 40000 should be a safe place to start. Any kinds of overclock can corrupt data so you are better off creating a restore point for your OS before overclocking anything in the first place.

 

SA and IO should be around 1.2V, and under no circumstances (except sub ambient cooling) should you go past 1.35v

I did 400 Trfc and 50000 Trefi, If I go lower with the Trfc I bsod and I'm afraid to go higher with Trefi