Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

[jojodancer]

Hello Gigabyte,

cpu - i7 870
mobo - Gigabyte P55A-UD4 (latest BIO F8)
ram - 4x2GB G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)
QPI/VTT set to 1.47v
CPU VCORE set to 1.3375v
DRAM to 1.660v

I have overclocked the i7 870 beyond 4GHz and now is running at 4.05GHz with the RAM at 2208MHz and XMP on. RAM voltage set at 1.66v, BCLK at 184 and Multiplier at x22. Core voltage at 1.36v (MAX. at 100% loaded).

I have been testing this setup in PRIME (with various voltage settings). At 1.36v MAX, core temps are around high 70c and low 80c in average. Every time the system runs pretty well before 1.25 to 1.5 hours and after that fatal error occurs (one or more workers stopped working).

I would like the system to run with trouble free at PRIME at least for 2 hours (if possible, higher CPU speed as well).

So Gigabyte, any good recommendation?

Thanks!

full spec -

i7 870
Gigabyte P55A-UD4P / BIO F8 (latest)
4 x 2GB G. Skill DDR3 2200MHz CL7-10-10-28
Crosair Hydro H50 push pull x 2 Noiseblocker M12-S3hs fans
Radeon HD5770 x 2 CF
Crosair HX750 power
2 x 1TB WD Black
LG 8X Blu Ray rewriter
Samsung 22X DVD rewriter
Lian Li PC-60FNW
Zalman ZM-MFC1 fan controller
Noiseblocker PK-1 fan x 2 (side fans) / Noiseblocker PK-2 fan x 1 (top fan)

[Lsdmeasap]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

Can you please list your full settings from the MIT Section, template is in my signature.

The issue is likely XMP, you should not use this and set things yourself. Of course you may also just need more Vcore and or QPI/Vtt, but we need to see your full settings first before we can advise.

[jojodancer]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

CPU = i7 870
Motherboard = P55A-UD4P
BIOS Version = F8
Ram = G SKILL, F3-17600CL7Q-8GBPIS (4 X 2GB DDR3 2200MHz cL-7-10-10-28), G.SKILL-Products

COOLING = CORSAIR H50 PUSH-PULL



Advanced Frequency Settings:

CPU Clock Ratio [22x]

Advanced Core Features [Press Enter]:

Intel(R) Turbo Boost Tech................[Disabled]
CPU Cores Enabled........................[All]
CPU Multi-Threading......................[Enabled]
CPU Enhanced Halt (C1E)..................[Disabled]
C3/C6/C7 State Support...................[Disabled]
CPU Thermal Monitor......................[Auto]
CPU EIST Function........................[Disabled]
Bi-Directional PROCHOT...................[Auto]

QPI Clock Ratio..........................[x32]
QPI Link Speed...........................5.85GHz
Uncore Clock Ratio.......................18x
Uncore Frequency.........................3294MHz

>>>>> Standard Clock Control <<<<<

Base Clock (BCLK) Control................[Enabled]
BCLK Frequency ..........................[184]
Extreme Memory Profile (X.M.P.)..........[Profile 1]
System Memory Multiplier (SPD)...........[12.0]
Memory Frequency (MHz)..............2196 2208
PCI Express Frequency (MHz)..............[Auto]
C.I.A.2..................................[Disabled]

>>>>> Advanced Clock Control <<<<<

CPU Clock Drive..........................[ 700mV]
PCI Express Clock Drive..................[ 700mV]
CPU Clock Skew...........................[ 0ps]

Advanced Memory Settings:

Extreme Memory Profile (X.M.P.)..........[Profile 1]
System Memory Multiplier (SPD)...........[12.0]
Memory Frequency (MHz)..............2196 2208
Performance Enhance (SPD)..............[Standard]
DRAM Timing Selectable (SPD).............[Expert]
Profile DDR Voltage .....................1.65v
Profile QPI Voltage .....................1.1v
Channel Interleaving................6 [Auto]
Rank Interleaving...................4 [Auto]

>>>>> Channel A & B

Channel A Timing Settings [Press Enter]:
Cas Latency Time....................7 [7 ]
tRCD................................10 [10]
tRP.................................10 [10]
tRAS................................28 [28]

>>>>> Advanced Timing Control

tRC.................................40 [Auto]
tRRD................................6 [Auto]
tWTR................................6 [Auto]
tWR.................................10 [Auto]
tWTP................................22 [Auto]
tWL.................................8 [Auto]
tRFC................................100 [Auto]
tRTP................................6 [Auto]
tFAW................................30 [Auto]
Command Rate (CMD)..................2 [Auto]

>>>>> Misc Timing Control

B2B Cas Delay............................[Auto]
Round Trip Latency (CHANNEL A)*.....43 [Auto]
Round Trip Latency (CHANNEL B)*.....45 [Auto]



Advanced Voltage Settings:

******Mother Board Voltage Control ******
Voltage Types............Normal......Current
--------------------------------------------

>>> CPU
Load Line Calibration...................[Auto]
CPU Vcore..................1.19375v.....[1.33750v]
QPI/VTT Voltage............1.100v.......[1.470v]

>>> MCH/ICH
PCH Core...................1.050v.......[Auto]
CPU PLL....................1.800v.......[Auto]

>>> DRAM
DRAM Voltage...............1.500v.......[1.660v]
DRAM Termination...........0.750v.......[Auto]
Ch-A Data VRef.............0.750v.......[Auto]
Ch-A Data VRef.............0.750v.......[Auto]
Ch-B Data VRef.............0.750v.......[Auto]
Ch-B Data VRef.............0.750v.......[Auto]


Miscellaneous Settings:[/SIZE]

Isochronous Support.....................[Enabled]
Virtualisation technology...............[Enabled]



At this Vcore setting, core temps are around high 70c and low 80c. This i7 870 generates tons of heat even though I have the Corsair H50 in push-pull setup already.

Thanks!

[Lsdmeasap]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

Ouch, please start over and load optimized defaults, then save/apply/reboot F10 BACK to the BIOS. Once in the BIOS go set your SATA/Disk settings back again, and then set all your overclock settings again. You are starting with Fail Safe BIOS settings and that can cause many issues.

Aside from what you have, which looks fairly ok, you may want to make the following changes. Hey, can you adjust uncore with your CPU?

Extreme Memory Profile (X.M.P.)..........[Profile 1] << Disabled
System Memory Multiplier (SPD)...........[12.0]
Memory Frequency (MHz)..............2196 2208
PCI Express Frequency (MHz)..............[Auto] << Set 100

Load Line Calibration...................[Auto] << Level 1
CPU Vcore..................1.19375v.....[1.33750v] << May need a bit more, or by enabling Level 1 LLC you may be able to lower this later
QPI/VTT Voltage............1.100v.......[1.470v] << May need more or less, when Prime fails what BSOD code do you get if you get BSOD's? Looks like 0x00000000

>>> MCH/ICH
PCH Core...................1.050v.......[Auto] << 1.1 could help
CPU PLL....................1.800v.......[Auto] << 1.84 could help

[jojodancer]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

Thanks! Will input your suggestions and see.

BTW, where did you notice that my computer is starting with Fail Safe BIOS?

Yes, I can uncore the CPU.

In LOAD LINE CALIBRATION, I only have "Enable" or "Disable".

Also, in PRIME test, it is not totally crashed. Usually it is 1 or 2 "workers stopped" and the rest of workers are still "working".

Thanks!

[Lsdmeasap]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

Fail Safe? I can tell, it's a secret :)

About Uncore, sorry I couldn't tell from your reply and I am not sure about P55 boards/CPU's (Always forget), can you change the Uncore multiplier?

Load Line Calibration, just set enabled then. Are you using the latest BIOS?

It sounds like you might not be, UD4P is on F9k, you can get it here if you want

http://forums.tweaktown.com/f69/gigabyte-latest-bios-28441/

OK well one or two workers stopping means it failed, but that wont help us know a BSOD code since there isn't one. This might help you be able to tell why it stops, a post here explains some of how/why on Prime95

http://forums.tweaktown.com/f69/another-q9950-ud3p-overclock-31304/index9.html#post296644

[jojodancer]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

It is in F9K now. Thanks.

Yes I think the Uncore multiplier can be changed but I have to double check. What do you suggest?

Anyway, this thing has passed small FFTs test (2+ hours) but not large FFTs test. What does it tell me?

[Lsdmeasap]

Re: Gigabyte P55A-UD4P / G Skill F3-17600CL7Q-8GBPIS (DDR3 2200MHz 7-10-10-28)

If you can change the uncore, raise it above 1.5x memory multi, but you may no be able to.

Not sure, see the above link for prim95 testing info. I only use Blend on prime95 myself