Killer Trinity - top A10-5800k - confirmed 5.1GHz on air and 7.3GHz on LN2

[Pt1t]

That realtek one : RTM880N-793

[The Stilt]

http://www.hwbot.org/submission/2323705_

Validation is rejected because it is broken in CPU-Z 1.61.8 version.

[Lightman]

WOW!

That is nice for an APU!
Any hard mods to the mobo? Retail or Eng. CPU sample?
Very nice memory clock for that high overclock!
Gratz!

[The Stilt]

WOW!

That is nice for an APU!
Any hard mods to the mobo? Retail or Eng. CPU sample?
Very nice memory clock for that high overclock!
Gratz!

No physical mods on the motherboard, yet.
The VRM itself is not an issue since the CPU draws less than 20W or so (nonexistent leakage due temperatures).
The APU is equal to retail parts, nothing special.

Actually I orginally threw this chip to bin labeled as "Rejects"

[FlanK3r]

Awesome Stillt, next new benchamrks results?

[massman]

Nice improvement. Seems like a lot of vendors have tuning to do. Are you tuning the VRM controller?

[Himo5]

Talking of Asus Digi+VRM, here's some hard data that may be of some use as a starting point for OCing A10-5800K on the Asus F2A85's.

Using the standard APU frequency of 100MHz and incrementing the APU Multiplier from 38X to 50X I've attempted overclocks with the default Digi+VRM settings and then using the Smart Digi+ key in AI Suite II from 3800MHz to 5000MHz.

The CPU voltage required in each OC to pass 30 minutes in Prime95 is given with the number of 0.00625V steps above or below the default setting of 1.3125V.

+------+---------------+---------------+
|CpuMHz|.Default VRM...|.SmartDigi+Key.|
|ApuFrq+-----+---------+-----+---------+
| =100 | -/+*|..Vcore..|.-/+.| .Vcore..|
+------+-----+---------+-----+---------+
| 3800 | -15 | 1.21875=| -19 | 1.19375 |
| 3900 | -10 | 1.25000 | -16 | 1.21250 |
| 4000 | -05 | 1.28125 | -12 | 1.23750 |
| 4100 | +02 | 1.32500 | -07 | 1.26875 |
| 4200 | +07 | 1.35625 | -02 | 1.30000 |
| 4300 | +13 | 1.39375 | +05 | 1.34375 |
| 4400 | +18 | 1.42500 | +10 | 1.37500 |
| 4500 | +26 | 1.47500 | +17 | 1.41875=|
| 4600 | +38 | 1.55000 | +24 | 1.46250 |
| 4700 | +50 | 1.62500 | +34 | 1.52500 |
| 4800 | +62 | 1.70000 | +46 | 1.60000 |
| 4900 | 80+ | 1.8125+ | +60 | 1.68750 |
| 5000 | 80+#| 1.8125+ | 80+ | 1.8125+ |
+------+-----+---------+-----+---------+
| * 1.3125V to 1.9V = 94 x 0.00625V....|
| # 80+ = Prime95 fails below 1.8125V..|
+--------------------------------------+

Desktop installation for the test was:-
APU:Amd A10-5800K
HSF:Scythe Mugen 3b
MBD:Asus F2A85-V PRO
RAM:G.Skill TridentX-2666 2x4Gb
PSU:Seasonic X-760
HDD:WD1002EAX-1TB
CSE:Casecom KM5788

Non-default UEFI settings were:
AI Overclock Tuner [Manual]
APU Frequency [100MHz]
APU Multiplier [Auto] (Posts as 38x so this can be adjusted in AI SuiteII)
CPU Voltage [Manual mode]
AMD PowerNow function [Disabled]
CPB Mode [Disabled]
C6 Mode [Disabled]
OnChip SATA Type [IDE]
CPU_FAN Q-Fan Control [Enabled]
CPU_FAN Fan Profile [Standard]

Cooling was driven by my OCing (ie. loud!) fan set, consisting of two Scythe AP29-3000rpm GT fans modded and set in a PWM chain from CPU_FAN in a lateral push/pull configuration on the HSF to expel air through the cut out rear air vent and a Yate Loon 14cm/2300rpm 3-pin fan immediately above the HSF driven from CHA_FAN1 expelling air out of the case top through another cut out vent.

[AMDforME]

Trinity desktop APUs seem to have a lot of headroom for OC'ing, which makes them a wonderful value.

[massman]

AMD's going good. They apparently now also have enough money to pay someone for spamming international forums talking about how great AMD products are!

[Alex-Ro]

Lol,i think there was a free place after jf-amd got kicked out

[Tomasis]

Chew would be right guy!

[The Stilt]

Slighty modified...



Thermalright UEX120, Scythe Ultra Kaze 120mm.

[Alex-Ro]

Extremely nice

[FlanK3r]

stilt: say something ...No, really, nice CPU, I think, someone with low VID?

[The Stilt]

stilt: say something ...No, really, nice CPU, I think, someone with low VID?

It is a high / medium leak part (1.3625V).
Exactly the same chip 6.5G Cinebench was done with.

Need to test the improvements on LN2 too.

[FlanK3r]

Now Im confused....6.5 GHz R11.5 is impressive, so ultrahigh leak chips will be better?!

[Yeroon]

Talking of Asus Digi+VRM, here's some hard data that may be of some use as a starting point for OCing A10-5800K on the Asus F2A85's.

Using the standard APU frequency of 100MHz and incrementing the APU Multiplier from 38X to 50X I've attempted overclocks with the default Digi+VRM settings and then using the Smart Digi+ key in AI Suite II from 3800MHz to 5000MHz.

The CPU voltage required in each OC to pass 30 minutes in Prime95 is given with the number of 0.00625V steps above or below the default setting of 1.3125V.

+------+---------------+---------------+
|CpuMHz|.Default VRM...|.SmartDigi+Key.|
|ApuFrq+-----+---------+-----+---------+
| =100 | -/+*|..Vcore..|.-/+.| .Vcore..|
+------+-----+---------+-----+---------+
| 3800 | -15 | 1.21875=| -19 | 1.19375 |
| 3900 | -10 | 1.25000 | -16 | 1.21250 |
| 4000 | -05 | 1.28125 | -12 | 1.23750 |
| 4100 | +02 | 1.32500 | -07 | 1.26875 |
| 4200 | +07 | 1.35625 | -02 | 1.30000 |
| 4300 | +13 | 1.39375 | +05 | 1.34375 |
| 4400 | +18 | 1.42500 | +10 | 1.37500 |
| 4500 | +26 | 1.47500 | +17 | 1.41875=|
| 4600 | +38 | 1.55000 | +24 | 1.46250 |
| 4700 | +50 | 1.62500 | +34 | 1.52500 |
| 4800 | +62 | 1.70000 | +46 | 1.60000 |
| 4900 | 80+ | 1.8125+ | +60 | 1.68750 |
| 5000 | 80+#| 1.8125+ | 80+ | 1.8125+ |
+------+-----+---------+-----+---------+
| * 1.3125V to 1.9V = 94 x 0.00625V....|
| # 80+ = Prime95 fails below 1.8125V..|
+--------------------------------------+

Well thanks for this, now I get to spend more time overclocking my trinity.
What kind of llc you using?

Ah well, its spent the whole week folding. Guess it can take a break to try get get a higher oc.

[The Stilt]

Now Im confused....6.5 GHz R11.5 is impressive, so ultrahigh leak chips will be better?!

HL/UHL parts are generally better, however it is not the whole story.
The chip needs to have characteristics other than just the leakage.
Basically you will need a chip with evenly matched CUs.

And the CUs on this chip are EXACT

[The Stilt]

285MHz (7320MHz -> 7605MHz) increase across the node after the mods
The final results will be out later this month.

[FlanK3r]

noce man .! Im looking at your article

[Himo5]

Well thanks for this, now I get to spend more time overclocking my trinity.
What kind of llc you using?

Ah well, its spent the whole week folding. Guess it can take a break to try get get a higher oc.

Sorry that I only just saw your post. LLC settings in my test were made using the optimized VRM setting facility in AI Suite II on Asus boards. I first set and apply the Multiplier/Frequency in Turbo EVO then go into DIGI+ Power Control and click the colored Smart DIGI+ Key which generates an appropriate setting for the applied OC. For those coming at this on different boards, the following is fairly representative of the settings generated.

CPU Load Line Calibration [Extreme]
CPU Current Capability [140%]
CPU/NB Load Line Calibration [Extreme]
CPU/NB Current Capability [120%]
CPU Power Phase Control [Extreme]
CPU Voltage Frequency [Fixed Frequency Mode]
Fixed Frequency Mode [310 KHz]
CPU Power Duty Control [TProbe]
CPU Power Thermal Control [135?C]
DRAM Current capability [120%]
DRAM Fixed Frequency Mode [400 KHz]
DRAM Power Phase Control [Extreme]