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AMD Thuban X6 OCing database

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aigomorla said:
if your a cruncher yes, u might cry because ud'd need at least a 860 to a 870 to get close to an x6.
Click to expand...

How does this look when you OC the 750? From what I've seen, 4Ghz is a regular OC for that cpu and as someone who does a lot of video encoding I am curious how these two cpus OC'd would compare when doing encoding work. Anyone seen some charts on this?
 
I started Linpack 50 loops @4.0 GHz / 1.392V. GFlops is kinda low for my expectation but I blame my shitty DDR2-667 and the 785G board. I did a few quick Cinebench runs because that was the hardest test for overclocked Deneb.



Once I find a sweet spot, I'll swap my 955BE with this 1090T.
 
You can add mine to the list. I will either try going for higher frequencies or lower voltages but I'm happy with the initial result.

* CPU Model: AMD Phenom II X6 1090T
* CPU Stepping: CCBBE CB 1015BPBW
* CPU Frequency: 4000 MHz
* CPU vCore: 1.400V
* CPU Multiplier: 20x
* CPU Turbo: Disabled
* CPU NB Speed: 200x12=2400 MHz
* HT Bus Speed: 200x12=2400 MHz
* HT Link Speed: 200 MHz
* RAM Brand and Model: Aeneon DDR2-667
* RAM Speed: DDR2-800
* RAM Timings: 5-6-6-18-2T
* RAM Configuration: 2x2 GB
* RAM vDIMM: 2.00V
* Motherboard: Gigabyte 785GM-US2H
* Chipset/Socket: 785G + SB710, AM2+
* Cooling: Scythe Samurai Master + 38mm fan (2000RPM)
* Temps: 22C Idle / 48C Load
* Operating System: Windows 7
* 32/64-Bit: 64
* Stable/Suicide/Untested: Stable



Overclocking was super easy on a $40 motherboard. The system booted 4.0 GHz without touching anything but failed to run stress tests. I noticed Turbo/C1E in action and vCore fluctuating betwen 1.275V and 1.40V. So I figured 1.40V would be a good starting point. (My intuition usually turns out to be in the ball park :sneaky🙂 But as I mentioned recently I am not thrilled with 66 GFlops @4.0 GHz so from here on I'll try to learn the chip's intricacy and how it behaves. Once I install this into my 790X board, I think 70 GFlops will be doable. (Same thing happened with 955BE in the past - 42 GFlops on 780G but 45 GFlops on 790X) but higher than that will likely require DDR3 and higher NB speed.
 
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Updated with lower vCore. 1.375V suffices for 4.0 GHz for this chip. The weather got a bit cooler and that definitely helped. I left NB/HT multi to auto and interestingly the board automatically selected x12 (for NB) and x11 (for HT). Tightened the memory timings manually to 5-5-5- from 5-6-6, and Linpack score is now looking at 67 GFlops.

* CPU Model: AMD Phenom II X6 1090T
* CPU Stepping: CCBBE CB 1015BPBW
* CPU Frequency: 4000 MHz
* CPU vCore: 1.375V
* CPU Multiplier: 20x
* CPU Turbo: Disabled
* CPU NB Speed: Auto (200x12=2400 MHz)
* HT Bus Speed: Auto (200x11=2200 MHz)
* HT Link Speed: Auto (200 MHz)
* RAM Brand and Model: Aeneon DDR2-667
* RAM Speed: DDR2-800
* RAM Timings: 5-5-5-18-2T
* RAM Configuration: 2x2 GB
* RAM vDIMM: 2.00V
* Motherboard: Gigabyte 785GM-US2H (Rev 1.1)
* Chipset/Socket: 785G + SB710, AM2+
* Cooling: Scythe Samurai Master + 38mm fan (2000RPM)
* Temps: 22C Idle / 45C Load
* Operating System: Windows 7
* 32/64-Bit: 64
* Stable/Suicide/Untested: Stable


Here is the chip at work:



Linpack running:



Linpack Ending:



Result:
 
Damn...4GHz at 1.4v!! That's really nice. I have 3.8GHz at 1.4v...but getting to 4GHz needed 1.525v...or I needed to fiddle a bit more with other settings. I'm guessing the 1090 though needs lower voltage anyway.
 
Tried 4.2 GHz @1.45V but Linpack errors out before passing 10 loops or so. Temp shoot past 50C so I will likely need to give much more voltages (thus more heat) and better cooler as well. 4.0 GHz @1.375V suits my need perfectly though. The system flies. 🙂 Another thing I noticed is that the NB clocks way better than 955 BE. Its default voltage seems to be 1.125V and I can run 2500 MHz NB at that voltage. 2800 MHz takes 1.250V but until I move this CPU into DDR2-1000 rig 2800 MHz NB is kinda pointless, so I'm not testing it any further.

richierich1212 said:
nice lopri. So did you build another system?
Click to expand...

No, I just picked up the CPU and bundled motherboard for cheap. This 1090T will replace my 955 BE and i'll either sell 955 BE + 785G board or build a basic system for my parents' shop.
 
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lopri said:
Tried 4.2 GHz @1.45V but Linpack errors out before passing 10 loops or so. Temp shoot past 50C so I will likely need to give much more voltages (thus more heat) and better cooler as well. 4.0 GHz @1.375V suits my need perfectly though. The system flies. 🙂 Another thing I noticed is that the NB clocks way better than 955 BE. Its default voltage seems to be 1.125V and I can run 2500 MHz NB at that voltage. 2800 MHz takes 1.250V but until I move this CPU into DDR2-1000 rig 2800 MHz NB is kinda pointless, so I'm not testing it any further.



No, I just picked up the CPU and bundled motherboard for cheap. This 1090T will replace my 955 BE and i'll either sell 955 BE + 785G board or build a basic system for my parents' shop.
Click to expand...

Ya my X6 NB needed much lower volts than the 955 would. I get 2600 nb at what I got 2200 on the 955 I got at launch.
 
I think 4.20 GHz @1.45V (and possibly beyond) may be doable with my chip. From the looks of it, however, my motherboard's paltry power delivery isn't up to the task. (can't fault for it since the board is really not meant for this kind of overclocking) I can run most benches @4.20 GHz but Linpack will cause spontaneous reboots eventually. Also noticed the VRMs getting very very hot.

Anyhow, I switched my heat sink to Infinity and ran the baseline again to make sure. All seems well. 🙂



Edit: Installed it on 790X and configured it for 16x250, and Linpack scores went right up.



More testing..
 
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Bad day...I am pretty sure I burned out the mobo. I put my 550 BE in there, and reset the bios. All I get is a quick flicker on the power light, and the fans move 1/8th of a revolution, just enough to know there is power applied. I put the X6 in my other motherboard, and it powers up, but no post (N68-S, doesn't support Thuban)

So I ordered a GIGABYTE GA-790XTA-UD4 AM3 AMD 790X SATA 6Gb/s USB 3.0 ATX AMD Motherboard . What do you think ? will it last longer ? Remember, I run mine overclocked, and 100% load 24/7/365.
 
Bad day...I am pretty sure I burned out the mobo. I put my 550 BE in there, and reset the bios. All I get is a quick flicker on the power light, and the fans move 1/8th of a revolution, just enough to know there is power applied. I put the X6 in my other motherboard, and it powers up, but no post (N68-S, doesn't support Thuban)

So I ordered a GIGABYTE GA-790XTA-UD4 AM3 AMD 790X SATA 6Gb/s USB 3.0 ATX AMD Motherboard . What do you think ? will it last longer ? Remember, I run mine overclocked, and 100% load 24/7/365.
 
I forgot what your old board was, but did it have some kind of cooling for VRMs/Mosfets? My 785G board had nothing and exposed bare power circuitry so when I tested I used Scythe Samurai (down-blowing type) to move some air around. It's a major reason why I generally prefer down-blowing heat sinks despite their lesser cooling performance. And settle the overclock at reasonable vCore. (i.e. before it starts requiring exponential increases for small gains)

My 785G board had 4+1 design for power delivery which is common for AM2+ boards and I felt it wasn't up to the task feeding 1.50V+ for my 1090T. It was fine up to 1.45V but I still had some active cooling for VRMs and Mosfets.

Your new board is almost identical to mine except the support for DDR3, and my board has served me for over a year with 955BE @3.6 GHz and 8GB of RAM. And now serving 1090T. I hope it'll do better than your old one.
 
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The old board was MA-770T-UDP3. No cooling on the mosfets, no down draft HSF. The new one has 8+2 phase power, and mosfet cooling.

I guess I should have known it was too good to be true, and hexcore on a $80 mobo. But the new one is only $100 after rebate. My 920 board is still the cheapest at $170.
 
Well, I grabbed a 1090T + Biostar T890fxe board combo at Fry's. Was too good of a deal to pass up! Was going to grab whatever good combo they had--happened to be AMD the day I went, so I grabbed that, hah! Man, so different from Intel in the way they "handle" and overclock! Took me a good bit to tweak it to be both fast and 100% stable. I wasn't sure I was going to get it stable and I was really getting frustrated with it!!! Turns out these things, at least mine, really don't like to have the RAM clocked very high compared to Intel stuff! Really strange!

Wow, AMD overdrive is great though!

Here's what I did:
1. 220mhz base clock.
2. HT clock set to x9, runs at 1980.
3. CPU-NB set to x10, runs at 2200 (seems to make a bit of a performance difference, may try to see if 2.4ghz is stable later).
4. CPU Voltage set to 1.35, CPU-NB voltage at 1.25.
5. I've left power management and turbo on. (Yay!!! My i7 was never stable with the power management features on when OC'd!) Omg runs so cool while idle or just using 1 or 2 cores, even when 2 cores are turboed way up!
6. These things sure are temp sensitive, so what I did was:

All 6 cores run at 3.85ghz with the voltages listed above. Runs nice 'n quiet and stable running prime95 x 6 on blend or in-place large ffts.

Then, turbo core is on and set in AMD overdrive to be limited to two cores. Voltage on that set to 1.55 (seemed scary coming from Intel where that'd be like omg fry yer cpu voltage...but here it's fine as long as it's kept cool, lol). Two cores turbo to 4180 (i think...the oddity was it really ends up running at like 4160-something instead of 4180, yeah, not a multiplier of 220 but w/e, that's what it does). 100% stable running prime95 blend or large ffts x 2. Stays stable if I set affinity to two individual cores, or if I let windows do it's thing. That 4.15ghz really kicks ass for gaming. I'd say it's about the same there as my i5 750 was at 3.8-3.9ghz.

I haven't experimented yet to see if there's any cores that'd be stable at a higher multiplier (ie if maybe core4 would do 4.3ghz or something). Meh. Temps are soooo good, verified in bios and amd overdrive, not just the about 10c low Coretemp ones. Temps got out of hand fast if I put all cores at 4.1ghz 1.5V or something though--runs stable for a few minutes running say, prime95 blend x 6 and the temp just keeps on climbing until it reaches like 65C and then blue screens. Lol. Not cool. With it like this temps reach 40-46C.

Playing Everquest 2 (yeah, yeah, make fun of me, sure, *giggle*)...it performs...how do I say this...differently...from the i5 750. You can "feel" that it's different. Max FPS on the phenom is slightly lower (by slightly I mean 1-3fps or there abouts). Min FPS in really crowded areas is about the same (if you have particle effects up in battlegrounds with 30ppl all fighting you'll get like 15fps on either system, horribly coded game). However, where the i7 would have little "hitches" where the min fps would drop for a second or would "stutter" the phenom doesn't do that at all, ever. Leading to the phenom being overall smoother gameplay experience in most cases, but less smooth in a couple areas where the i7 would have gotten 30fps and the phenom gets 28, for example. Anyway, great CPU. Doesn't dethrone Intel or anything, I love Intel (I live in Oregon, it's a requirement lol!) But great CPU. Overclocks like a champ, definitely competitive with i5 750, i7 920. AMD really did something that makes these chips able to clock higher, my friend at work has an older quad phenom II black edition and can't get over 3.6 lol.
 
Repost from Extreme:

f0f705fb.jpg


CPU Model: AMD Phenom II X6 1055T
CPU Stepping: CCBBE CB 1015DPAW
CPU Frequency: 3800/4200 MHz
CPU vCore: 1.400V
CPU Multiplier: 14x / 15.5 Turbo
CPU Turbo: Enabled
CPU NB Speed: 2176 MHz
HT Ref Speed: 272 MHz
RAM Speed: DDR3-1450
RAM Timings: 9-9-9-24-2T
RAM Configuration: 8 GB (4 x 2 GB)
RAM vDIMM: 1.71V
Motherboard:MSI 890GXM-G65
Chipset/Socket: AM3, 890GX + SB850
Cooling: H50 w/ 25mm spacer and 38x120mm fan
Temps: 23C Idle / 47C Load
Operating System: Windows 7
32/64-Bit: 64
Stable/Suicide/Untested: Untested (see below)

5 Runs Linx may not be Extreme but it's stable as far as I'm concerned

Also, is my 8 gigs of RAM bumping my Linpack score? If not, you guys may want to look into doing Turbo Boost. If it's not my amount of RAM boosting my score, then it's Turbo Boost as I'm getting Linpack scores higher than guys running all 6 cores at 4.0 Ghz.
 
I have a couple questions on the subject. I recently purchased a 1055T and an ASUS M4A89GTDPRO. I'm new to the OC world so if there are any great guides then please do link, but my question may be more specific to the settings available to me on this particular board. It has a built in program that allows the user to change settings for OC. The settings that I can change in Windows are (with current settings):

CPU Frequency: 257
CPU Voltage: 1.325
NB Voltage: 1.25
DRAM Voltage: 1.6
VDDA Voltage: 2.5
SB Voltage: 1.1
HT Voltage: 1.2
NB1.8 Voltage: 1.8
CPU Ratio: 14.0

I ran an auto OC utility just to see what it came up with and all that it changed was the CPU Bus from 200 to 257 and the NB Voltage from 1.15 to 1.25. DRAM voltage also went from 1.5 to 1.6, but everything else remained stock as far as I know. With those settings, CPU-Z is showing 3610 MHz.

When I go into bios and use the "Ai Tweaker" tool, my options are CPB control, CPU Bus Freq, PCIE Freq (currently 100), DRAM Freq (currently 1,713), CPU/NB Freq (currently 2,313), and HT Link Speed which is set to auto.

The CPU is cooled with a Noctua 92MM CPU cooler/fan, and according to CPUID hardware monitor, has never exceeded 34 degrees C. Ambient temp is ~23. That said, here are the questions that I have.

Question 1: When I go into the Ai Tweaker in Bios, which is just one of the Bios tabs, I can't change too many settings before the computer freezes. The gradient color across the top continues to scroll, but the computer is not responsive to any keyboard inputs. I haven't had a BSOD or other problem during actual Windows operation, so I'm not sure what could be causing it. From what I've read, it might be necessary to up the CPU voltage so that it can keep up with the higher Freq, but I don't know for sure. Any thoughts?

Question #2: I manually plugged in (to the Ai Tweaker in Bios) the timings for the RAM from the stock 9-9-9-24 to 7-8-7-24. CPU-Z reflects the correct timings, but the DRAM frequency that it posts is half of that manually plugged into Bios. What's the reason for that?

Question #3: Since it's sitting at 14.0, I assume the "CPU Ratio" is the multiplier. I've noticed that sometimes on CPU-Z the multiplier drops down to 4.0, but eventually returns to 14.0. Is this a power saving feature when it's running on idle? Also, I can change the ratio as high as 16.5, is this an easier way to OC, or is it safer to do so with voltage adjustments?

Thanks for the help!
 
Blueprint said:
Question 1: When I go into the Ai Tweaker in Bios, which is just one of the Bios tabs, I can't change too many settings before the computer freezes. The gradient color across the top continues to scroll, but the computer is not responsive to any keyboard inputs. I haven't had a BSOD or other problem during actual Windows operation, so I'm not sure what could be causing it. From what I've read, it might be necessary to up the CPU voltage so that it can keep up with the higher Freq, but I don't know for sure. Any thoughts?

Question #2: I manually plugged in (to the Ai Tweaker in Bios) the timings for the RAM from the stock 9-9-9-24 to 7-8-7-24. CPU-Z reflects the correct timings, but the DRAM frequency that it posts is half of that manually plugged into Bios. What's the reason for that?

Question #3: Since it's sitting at 14.0, I assume the "CPU Ratio" is the multiplier. I've noticed that sometimes on CPU-Z the multiplier drops down to 4.0, but eventually returns to 14.0. Is this a power saving feature when it's running on idle? Also, I can change the ratio as high as 16.5, is this an easier way to OC, or is it safer to do so with voltage adjustments?

Thanks for the help!
Click to expand...

1. Try bumping vcore to 1.35v and see if that helps.
2. Dual-channel memory, ex. 1600/2 = 800MHz
3. It's dropping the multi to 4x because Cool 'N Quiet is enabled (power saver)
 
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