Overclock.net › Forums › AMD › AMD CPUs › Unreliable IBT. OC once passed 10 but now only 5 rounds
New Posts  All Forums:Forum Nav:

Unreliable IBT. OC once passed 10 but now only 5 rounds

post #1 of 19
Thread Starter 
My 1090t is overclocked to 3.9 GHz with volts at 1.46750v in BIOS (spikes to 1.56v in IBT).
(I gradually increased the volts so this is the absolute minimum I can give it.)
Everything is else is on auto and at stock speeds and volts. RAM is kept at stock clock but manually entered manufacturer's spec timings.

I passed 10 runs of IBT at the Max RAM setting and then 10 hours 30 minutes (~1 cycle) of Prime 95 Blend with no errors/warnings.
Today I go to IBT to stress again and I can only pass 5 rounds and then the Warning window pops up.
I've noticed that my temps were higher too by 1-2 C but that's because my room temp is a bit higher and I don't have any windows open as I usually do when testing.

So the question is, how can the CPU decide to pass 10 runs of IBT AND almost 11 hours of Blend without errors and then the next day only 5 runs in IBT ? (I won't even try Blend again until it passes 10 rounds in IBT).
Strange.
Any help would be appreciated !
Edited by octhis - 4/17/13 at 10:31am
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
post #2 of 19
Set the LLC to 75% (ultra high). This will keep the voltage pretty much where you have it set in the BIOS and see if this helps. A set, stable voltage will usually help your overclock before stable
post #3 of 19
Thread Starter 
Quote:
Originally Posted by MacLeod View Post

Set the LLC to 75% (ultra high). This will keep the voltage pretty much where you have it set in the BIOS and see if this helps. A set, stable voltage will usually help your overclock before stable

Ok I will try this although I thought if I reduced the LLC my voltage couldn't jump to what the stress test needs it to be at (which is 1.56v) and therefore crash the system.
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
post #4 of 19
That's a lot of Vcore for 3.9GHz on a saborkitty. My 1090T runs 4233MHz with 1.468V Vcore on a CHIV as an example. Most can reach 4.0GHz with 1.4v to 1.44V Vcore.
You need to get into the DIGI+ II settings and do some more testing.
You may also find increasing the NB Freq may help too.
Loose the lower set of Ram, or better yet upgrade to some 12800 (1600MHz) if you want to reach 4.0 easier.
Your Ram set up is probably holding you back and may be the cause for the excess Vcore.
You didn't mention where your CPU/NB voltage is set. Running all four Dimm will stress the IMC more requiring additional CPU/NB voltage.
Dram voltage can also come into play at this level.

You haven't mentioned what temps you hit under load. This is also a BIG factor.
More info of where current settings are would be useful.
Edited by The Sandman - 4/17/13 at 5:40pm
Ryzen Build
(20 items)
 
 
Bruce
(14 items)
 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
  hide details  
Reply
Ryzen Build
(20 items)
 
 
Bruce
(14 items)
 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
  hide details  
Reply
post #5 of 19
Quote:
Originally Posted by octhis View Post

Ok I will try this although I thought if I reduced the LLC my voltage couldn't jump to what the stress test needs it to be at (which is 1.56v) and therefore crash the system.

1.56 is too much. LLC is overcompensating so its throwing more juice than you need. For example, I had mine set to Auto and I could get 4.5 stable with 1.41V but it would jump to 1.49 under OCCT. With LLC set to Ultra High, I set my voltage at 1.425 and it holds that voltage and 4.5 is still stable. Setting LLC to where it doesn't screw with your voltage will let you find the best setting for your overclock. When its bouncing all over the place, that plays havoc with stability. Constantly changing voltage doesn't work as well as a steady stream of juice.
post #6 of 19
Thread Starter 
I took out the 2*2 GB RAM already I just forgot to update my sig rig.

NB voltage is set to 1.206v in BIOS and nb frequency is 2000 MHz.
DRAM is set to 1.55v as i found this increased stability.
All the settings in Digi VRM are Maxed out except voltage frequencies which are set to auto.
Edited by octhis - 4/18/13 at 5:32am
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
post #7 of 19
Quote:
Originally Posted by octhis View Post

My 1090t is overclocked to 3.9 GHz with volts at 1.46750v in BIOS (spikes to 1.56v in IBT).
(I gradually increased the volts so this is the absolute minimum I can give it.)
Everything is else is on auto and at stock speeds and volts. RAM is kept at stock clock but manually entered manufacturer's spec timings.

I passed 10 runs of IBT at the Max RAM setting and then 10 hours 30 minutes (~1 cycle) of Prime 95 Blend with no errors/warnings.
Today I go to IBT to stress again and I can only pass 5 rounds and then the Warning window pops up.
I've noticed that my temps were higher too by 1-2 C but that's because my room temp is a bit higher and I don't have any windows open as I usually do when testing.

So the question is, how can the CPU decide to pass 10 runs of IBT AND almost 11 hours of Blend without errors and then the next day only 5 runs in IBT ? (I won't even try Blend again until it passes 10 rounds in IBT).
Strange.
Any help would be appreciated !

Just means that the OC is unstable... Up the voltage, 1.5 or something.
Quote:
Originally Posted by The Sandman View Post

That's a lot of Vcore for 3.9GHz on a saborkitty. My 1090T runs 4233MHz with 1.468V Vcore on a CHIV as an example. Most can reach 4.0GHz with 1.4v to 1.44V Vcore.
You need to get into the DIGI+ II settings and do some more testing.
You may also find increasing the NB Freq may help too.
Loose the lower set of Ram, or better yet upgrade to some 12800 (1600MHz) if you want to reach 4.0 easier.
Your Ram set up is probably holding you back and may be the cause for the excess Vcore.
You didn't mention where your CPU/NB voltage is set. Running all four Dimm will stress the IMC more requiring additional CPU/NB voltage.
Dram voltage can also come into play at this level.

You haven't mentioned what temps you hit under load. This is also a BIG factor.
More info of where current settings are would be useful.

4.0 on 1.4v - 1.45v just makes no sense... most 965/955 X4 needed the hand of God to get to 4.0. The 10XX series is better for higher overclocks, but not golden as you've described. Not all chips are made equal, and I have NEVER seen a 10XX series Phenom II do 4 Ghz STABLE with 1.4... Thats just nonsense...
The Douchebag
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 SABERTOOTH 990FX AMD Radeon (TM) R9 380 Series Mushkin  
  hide details  
Reply
The Douchebag
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX-8320 SABERTOOTH 990FX AMD Radeon (TM) R9 380 Series Mushkin  
  hide details  
Reply
post #8 of 19
Quote:
Originally Posted by doritos93 View Post

Just means that the OC is unstable... Up the voltage, 1.5 or something.
4.0 on 1.4v - 1.45v just makes no sense... most 965/955 X4 needed the hand of God to get to 4.0. The 10XX series is better for higher overclocks, but not golden as you've described. Not all chips are made equal, and I have NEVER seen a 10XX series Phenom II do 4 Ghz STABLE with 1.4... Thats just nonsense...

Excuse me? Nonsense?
Why are you comparing 965/955 x4's to a Thuban in the first place?. This is nonsense. Lets talk apples to apples here.
Or better yet just have a look at this 24 hr Prime95 run.
As I said 1.401v in bios with LLC on 100% on a CHIV air cooled.


Perhaps you need to research a bit more before making such claims. Now you've seen it!
I suppose my 4233MHz with 1.468v Vcore is probably non sense too right?
Normally I wouldn't respond to post's like this but you sir seem to have brought out my bad side with this one.
Have a look at the Members lists here http://www.overclock.net/t/682489/official-asus-crosshair-iv-formula-extreme-club and you'll easily see where I coming from.
All it takes is a little patience and know how with your OC.
Ryzen Build
(20 items)
 
 
Bruce
(14 items)
 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
  hide details  
Reply
Ryzen Build
(20 items)
 
 
Bruce
(14 items)
 
CPUMotherboardGraphicsRAM
R7 1800x Crosshair VI Hero Diamond 7970 GSkill FlareX F4-3200C14D-16GFX  
Hard DriveHard DriveHard DriveHard Drive
Samsung 960 EVO NVMe Samsung 840 SSD Corsair GT SSD WD 2TB Black 
Hard DriveCoolingCoolingCooling
WD 4TB Red EK-FB Asus C6H Monoblock XSPC GPU Razor WB XSPC RX 360 
CoolingCoolingCoolingCooling
XSPC RS 360 XSPC EX140 D5 Vario Gentle Typhoon AP-15 1850 rpm 
OSMonitorPowerCase
Win 10 Pro Asus VE248H x2 EVGA 850 G2 Xigmatek Elysium 
  hide details  
Reply
post #9 of 19
Thread Starter 
Quote:
Originally Posted by MacLeod View Post

Set the LLC to 75% (ultra high). This will keep the voltage pretty much where you have it set in the BIOS and see if this helps. A set, stable voltage will usually help your overclock before stable

I reduced the LLC to Ultra High. Did 9 rounds of IBT just fine with voltage jumping up to only 1.512 and running the cores 4 C cooler. It failed on the 10th run. Up to Extreme we go. . . Or maybe just increase vcore instead?
Quote:
Originally Posted by The Sandman View Post

Excuse me? Nonsense?
Why are you comparing 965/955 x4's to a Thuban in the first place?. This is nonsense. Lets talk apples to apples here.
Or better yet just have a look at this 24 hr Prime95 run.
As I said 1.401v in bios with LLC on 100% on a CHIV air cooled.


Perhaps you need to research a bit more before making such claims. Now you've seen it!
I suppose my 4233MHz with 1.468v Vcore is probably non sense too right?
Normally I wouldn't respond to post's like this but you sir seem to have brought out my bad side with this one.
Have a look at the Members lists here http://www.overclock.net/t/682489/official-asus-crosshair-iv-formula-extreme-club and you'll easily see where I coming from.
All it takes is a little patience and know how with your OC.

Looks like CHIV boards can OC very well. I am starting to think that maybe getting the Sabertooth 990FX (r2) wasn't the best idea (I've heard it's better suited to Bulldozer/Piledriver).
Maybe I should downgrade to a CHIV... I mean, 1.401 is heavenly for 4 GHz!
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
SpeedBird467
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5 4670k (4.2 GHz, 1.212v, Power saving ... Gigabyte GA-Z87X-UD4H VTX3D R9 280x G.Skill Sniper | 1866 MHz | 2 x 4 GB 
Hard DriveOptical DriveCoolingOS
OCZ Vertex 4 256 Gb Generic OEM DVD reader/writer Phanteks PH-TC14PE Windows 7 Home Premium 64-bit OEM 
MonitorKeyboardPowerCase
Samsung P2370HD Logitech K310 Washable Keyboard Corsair CX750 750W In Win GR One 
MouseMouse PadAudioOther
Perixx MX-3000 Desk Onboard audio and headphone amp provided by chi... Fan Controller - Scythe Kaze Master II 
  hide details  
Reply
post #10 of 19
1.4-1.44v is a golden chip voltage for 4+ ghz. Just because you saw 3 chips do it, doesn't mean every chip can. The average can not reach 4 ghz at all. 1090/1100t chips seemed to average around 3.8-3.9 up to 1.475v.

For example, even thou my mobo wasn't up to the task, my 1090t could do 3.6ghz on auto voltage and I had turbo enabled with 4ghz turbo multi. Whenever turbo kicked in, it was the default 1.47v for the boosted cores, so the overall chip was around 140 watts. I could do 4ghz with 1.49v but 3.9 with 1.47v was benching better so my 4ghz wasn't stable.
Intel Evilnow
(18 items)
 
   
CPUMotherboardGraphicsRAM
i5 2500k 4ghz @ Offset -0.015 Asus P8P67 Evo (bios 3207) Sapphire 280x Tri-x 3GB OC (Stock 1020/1500 Non... G.Skill RipjawsX 2x4gb 1866mhz 9-10-9-28-2n @ 1.5v 
Hard DriveHard DriveHard DriveHard Drive
SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
Hard DriveOptical DriveCoolingOS
WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
MonitorKeyboardPowerCase
Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
MouseOther
A4tech x7 F3 Sunbeam RHK-EX-BA Rheobus-Extreme Fan Controlle... 
CPUMotherboardGraphicsRAM
Phenom II x6 1090t BE 3.6/4.0 Turbo@def.volt MSI K9A2 Platinum v1 Sapphire HD6850 1GB 850/1100@def.volt Kingston 2x2gb Hyperx 1066 5-5-5-15 
Hard DriveHard DriveOptical DriveOS
Western Digital WD5001AALS Seagate Barracuda ST3250410AS Asus DRW-1814BLT Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
Mouse
A4 tech Swop-3 
  hide details  
Reply
Intel Evilnow
(18 items)
 
   
CPUMotherboardGraphicsRAM
i5 2500k 4ghz @ Offset -0.015 Asus P8P67 Evo (bios 3207) Sapphire 280x Tri-x 3GB OC (Stock 1020/1500 Non... G.Skill RipjawsX 2x4gb 1866mhz 9-10-9-28-2n @ 1.5v 
Hard DriveHard DriveHard DriveHard Drive
SHSS37A120G WD5000AAKX-001CA0 WD20EARX WD20EZRZ 
Hard DriveOptical DriveCoolingOS
WD5001AALS-00L3B2 (Now External) ASUS DRW-1814BLT Noctua NH-u12p SE2 Windows 10 Pro 
MonitorKeyboardPowerCase
Asus VH242H Wobbly Stand :) Microsoft Ergo 4000 Enermax Infiniti 650 (28a,28a,30a) Cooler Master haf 912 Advanced 
MouseOther
A4tech x7 F3 Sunbeam RHK-EX-BA Rheobus-Extreme Fan Controlle... 
CPUMotherboardGraphicsRAM
Phenom II x6 1090t BE 3.6/4.0 Turbo@def.volt MSI K9A2 Platinum v1 Sapphire HD6850 1GB 850/1100@def.volt Kingston 2x2gb Hyperx 1066 5-5-5-15 
Hard DriveHard DriveOptical DriveOS
Western Digital WD5001AALS Seagate Barracuda ST3250410AS Asus DRW-1814BLT Windows 7 Ultimate x64 SP1 
MonitorKeyboardPowerCase
Asus VH242H 23.6" Wobbly Stand :D Microsoft Ergo 4000 Enermax Infiniti 650w (28a,28a,30a) Thermaltake Kandalf SuperTower 
Mouse
A4 tech Swop-3 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD CPUs
Overclock.net › Forums › AMD › AMD CPUs › Unreliable IBT. OC once passed 10 but now only 5 rounds