s939 Opteron CAB2E Overclocking Thread

[Mucker]

Highly likely, but there are no guarantees with anything over spec. Check this out: http://www.dfi-street.com/forum/showthread.php?t=10854&highlight=psu+guide

My core:
DFI nF4 Ultra-D, bios 623-3 official, orange slots
Opteron 146 CABYE 0540 FPMW @ 2900 MHz, stock volts
G.Skill 2GBZX (2x1GB) @ DDR527 @ 2.8v @ 3-3-2-5-1T
Raptor 74GB
Fortron 550 watt 60PLN

My results:
http://members.cox.net/mucker/GSkill/FPMW5.jpg
http://members.cox.net/mucker/GSkill/FPMW6.jpg
http://members.cox.net/mucker/GSkill/OCCTFPMW2.jpg

 

[ric1287]

so i guess if im not looking for a massive overclock, i would be fine with the forton PSU recomended and that you have. Save 70$, which is always good.

 

[Mucker]

That particular Fortron EPS FSP550-60PLN psu is a very strong for the money. The Sparkle PLG is the same unit. Don't worry about overclocking with it, it will run with the big boys just fine. This psu is designed for a server environment and really shines at high temperature. It can deliver 500 watts continuous at 50C, 550 watts at 30C, similiar to the PCP&P. Don't be fooled by it's low price, this puppy rox.

A concern for you may be that it houses only one 80mm rear exhaust fan. It is not an issue for me because I use an Antec P180 case with a bottom cooling chamber. In that bottom chamber, there is a 120mm fan that pushes air directly into the front vents of the psu (where the wires come out) and exits through the rear fan. Very good match for the P180 and the psu stays nice and cool and quiet. The psu fan is thermally controlled so it stays pretty quiet as is.

In a regular case, a 120mm fanned psu may be a better choice although I can't say for sure. Like I said, the Fortron is designed to deliver high power output in elevated heat environments so it should be A-OK regardless.

 

[coomar]

just got a opteron 146 cabye 0540 FPMW from tankguys today

 

[Avalon]

Just got my Opteron 144 CABNE 0544 EPMW in from Monarch. It's burning in at stock on my system right now. I'm going to leave it that way for a good 5-6 hours while I go to work, and will commence the overclocking when I get home at midnight.

 

[Jay25dj]

Hi! Would appreciate some help with ocing my Opty 146 CABYE 0540FPBW. I am having serious problems getting stable at over 2.5Ghz. My specs are in my sig but having swapped both the PSU recently and the mem from Corsaig to G.Skill i am beginning to think my mobo may be causing me problems.

I've tried all sorts of things, voltages on cpu and mem, mem dividers, lower latencies etc but am just having no luck. I keep getting rounding errors in Prime95 when running at anything above 2.5Ghz, 208Mhz mem at the 333 divider. Any help with what settings could work would be very very welcome!!

Thanks Guys!

 

[g0dMAn]

DFI Ultra-D NF4 (sli mod)

Watercooled: Bix2 and 2x120mm Deltas, Storm, D5 pump, Tygon tubing

Opteron 144
CAB2E 0540FPMW
333x9 (2997mhz) @ 1.6v
2x512 TwinMOS SP UTT-BH5 @ 250mhz 2-2-2-6-1T
SuperPI stable, 3D gaming stable (tested several hours on end)

30-32C idle, mid 40C load

Currently testing out Opteron 148 CAB2E 0545CPBW...

 

[ric1287]

i was wondering what you guys think would be more worth it:
keeping my current gig of hyperx3500 ram and getting a 7800gt, or get 2gigs of new ram and get a 6600gt?

I play games but not too much, so i am leaning towards the latter, any advice?

 

[coomar]

7800gt, the 2GB of ram will go down in price as it becomes more mainstream

 

[ric1287]

wouldnt that be the other way around?

 

[coomar]

both will go down in price, the 7800gt as more powerful cards come out and the 2 GB as more and more are produced

 

[Solema]

Originally posted by: Jay25dj
Hi! Would appreciate some help with ocing my Opty 146 CABYE 0540FPBW. I am having serious problems getting stable at over 2.5Ghz. My specs are in my sig but having swapped both the PSU recently and the mem from Corsaig to G.Skill i am beginning to think my mobo may be causing me problems.

I've tried all sorts of things, voltages on cpu and mem, mem dividers, lower latencies etc but am just having no luck. I keep getting rounding errors in Prime95 when running at anything above 2.5Ghz, 208Mhz mem at the 333 divider. Any help with what settings could work would be very very welcome!!

Thanks Guys!

I'll tell you right now it's your motherboard. The A8N-SLI Deluxe has an ongoing (and apparently unfixable) issue with FSB's higher than 250 and 1T command rates. That's exactly why I bought a DFI board about 6 months ago. If you're serious about wringing the max performance out of that CPU, eBay the board and get a DFI SLI-DR or Ultra-D.

However, if you're NOT that serious about OC'ing it, I'd be happy to buy the CPU off of you!

 

[Mucker]

Today I got my 146 CAB2E 0540 FPMW....results so far: http://members.cox.net/mucker/GSkill/CAB2E1.jpg
No burn in, just took out my CABYE 0540, went straight to 280HTT at stock voltage. Damn impressive cpu's! Woot

TMaxCase=65C
Max load temp is 52C (will drop with AS5 curing)

The CAB2E 0540 does run a bit warmer than the CABYE 0540, however, the TMaxCase was lower (63C) for the CABYE, so, I believe all is right on target....

 

[ric1287]

damn mucker you are selling me more and more on that G.SKill ram But i was wondering if for an extra 10$ its worth it to get the G.Skill ddr500? Also whats the rest of your CAB2E rig?

 

[Mucker]

That's a really good question. The HZ looks very good for the money. Honestly, I would have a very hard time deciding between the 2. If they go 580 they would be an excellent match for the Opty.

My feeling is that if you are interested in benchmarking and long period cpu intensive tasks, high bandwidth ram may be preferred. If you are gaming and or using applications that use short blasts from the cpu, tighter timings may be preferred.

In all honesty, this CAB2E, 2800 MHz, with DDR466 @ CAS 2.5 feels every bit as good or better than CABYE 2900 MHz, DDR527 @ CAS 3. There is simply no discernable difference to me.

Here's my CAB2E OCCT completed run: http://members.cox.net/mucker/GSkill/OCCTCAB2E.jpg

Testing rig:
DFI nF4 Ultra-D, 623-3, orange slots
146 Opteron CAB2E 0540 FPMW @ 2800 MHz @ stock volts (1.36v cpuz)
XP-90 w/AS5 and Panaflo 92mm HBX (1500rpm idle/2800rpm load)
G.Skill 2GBZX (2x1GB) @ DDR466 @ 2.5-3-2-5-1T @ 2.7v
EVGA 7800 GT (500/1120) with AC Silencer (53C max load)
Raptor 74 GB
Audigy2 ZS
Mitsubishi 2070b (22inch CRT)
Klipsch ProMedia 2.1
Logitech G15 keyboard /MX1000
Fortron FSP-550 -60PLN
XPSP2 with every freaking update...

 

[Avalon]

Some results on my CABNE 0544 EPMW, as the info comes in:

1) Priming at 250x9 (2.25ghz) stock volts
2) Priming at 270x9 (2.43ghz) stock volts
3) Priming at 290x9 (2.61ghz) stock volts
4) Priming at 300x9 (2.70ghz) 1.4v
5) Priming at 310x9 (2.79ghz) 1.47v
6) Superpi at 320x9 (2.88ghz) 1.55v
7) Superpi at 323x9 (2.906ghz) 1.55v

Had to break the magic 2.9 barrier there

And a pic for you.
Text

 

[Mucker]

Good luck Avalon , what mb/ram are you using?

 

[Avalon]

Same setup I used previously. Listed in the OP.
I've got a DFI NF4 Ultra-D running the 623-3 BIOS for BH5, with 2x512MB Mushkin Blue C2 Winbond UTT (never fully tested this out, went to 235mhz 2-3-3-7 @ 3v and stopped), Enermax 460w 24pin PSU w/33A @ 12v rail.

For my case, a Coolermaster Cavalier 3 (black, dead sexy) with 80mm intake (will mod to 120mm eventually), 120mm exhaust, open side panel.

HSF is a Thermalright SI-120. I've got a 120mm fan on it. All the 120mm fans I use are 120mmx38mm in size, made by Sunon, run at about 3500RPM and do around 85-90CFM. They are audible, but not noisy. I love em.

 

[CP5670]

Hey Mucker, I seem to remember that you got one of those CABYE FPAW chips from that guy on ebay a few weeks ago. How far did yours overclock?

I received mine a while ago but can't overclock it all on my existing motherboard (dividers are broken on all rev E processors with this ), so I need to wait a week or two until I have to time to get a better board for it. I have the same heatsink and fan you have in the setup you listed. Hopefully it will be good enough for 2.9, which is what I'm shooting for.

 

[Mucker]

Good job Avalon, glad to hear things are looking up for you! Nice results and nice rig too!

CP5670,

It was pretty easy to get the FPAW result below. I really haven't pushed any of these cpu's. The GSkill ram I use works extremely well with these Venus and San Diego cores. They are much more stable than the TCC5 (2x512) ram I was using previously.

Here are various results from the past 3 weeks of cpu tests:

San Diego 3700: http://members.cox.net/mucker/GSkill/GSkill1.jpg
146 CABYE 0540 FPAW: http://members.cox.net/mucker/GSkill/GSkill5Opt.jpg
146 CABYE 0540 FPMW: http://members.cox.net/mucker/GSkill/FPMW5.jpg
146 CAB2E 0540 FPMW: http://members.cox.net/mucker/GSkill/CAB2E1.jpg

Have one more 146 to go, but my order of Opty greatness has been:

1. 146 CABYE 0540 FPMW...TmaxCase=63C
2. 146 CABYE 0540 FPAW...TmaxCase=61C
3. 146 CAB2E 0540 FPMW...TmaxCase=65C
4. 146 CABYE 0536 GPMW...TmaxCase=57C<----not much better than San Diego

5. KABCE 0535 XPMW San Diego 3700

 

[Avalon]

Thanks Mucker!

I can get it to prime at ~2.8, but after that it's only superpi stable, which is at least still a small accomplishment

Pic!

 

[Mucker]

Looks like you got a good chip on your hands. Get er' tweaked up and enjoy your 1000+ MHz OC

 

[Avalon]

Originally posted by: Mucker
Looks like you got a good chip on your hands. Get er' tweaked up and enjoy your 1000+ MHz OC

Indeed. I'm fairly satisfied with this one. Pretty damn good for a $148 chip!
I've also got a 146 Cabbage 0536 on the way. Don't ask me how I wound up with it, but I'm more than happy to see how it fares!

 

[CP5670]

Originally posted by: Mucker
Good job Avalon, glad to hear things are looking up for you! Nice results and nice rig too!

CP5670,

It was pretty easy to get the FPAW result below. I really haven't pushed any of these cpu's. The GSkill ram I use works extremely well with these Venus and San Diego cores. They are much more stable than the TCC5 (2x512) ram I was using previously.

Here are various results from the past 3 weeks of cpu tests:

San Diego 3700: http://members.cox.net/mucker/GSkill/GSkill1.jpg
146 CABYE 0540 FPAW: http://members.cox.net/mucker/GSkill/GSkill5Opt.jpg
146 CABYE 0540 FPMW: http://members.cox.net/mucker/GSkill/FPMW5.jpg
146 CAB2E 0540 FPMW: http://members.cox.net/mucker/GSkill/CAB2E1.jpg

Have one more 146 to go, but my order of Opty greatness has been:

1. 146 CABYE 0540 FPMW...TmaxCase=63C
2. 146 CABYE 0540 FPAW...TmaxCase=61C
3. 146 CAB2E 0540 FPMW...TmaxCase=65C
4. 146 CABYE 0536 GPMW...TmaxCase=57C<----not much better than San Diego

5. KABCE 0535 XPMW San Diego 3700

Thanks for the stats. 2850 at 1.4v for the FPAW looks pretty good. Did any of those go any further with extra voltage?

 

[Jay25dj]

[/quote]I'll tell you right now it's your motherboard. The A8N-SLI Deluxe has an ongoing (and apparently unfixable) issue with FSB's higher than 250 and 1T command rates. That's exactly why I bought a DFI board about 6 months ago. If you're serious about wringing the max performance out of that CPU, eBay the board and get a DFI SLI-DR or Ultra-D.

However, if you're NOT that serious about OC'ing it, I'd be happy to buy the CPU off of you! [/quote]

So it is the mobo then? i was thinking that could be the problem. I have it SuperPI stable now but Prime still fails within seconds. I think i will Ebay the board and get a DFI, gonna hold out for the expert tho with further spaced pci-e slots and better layout for my HSF. The Freezer 64 Pro is designed so it FINALLY blows air out the back exhaust fan and not up into the psu!

Would you guys say the superpi is s decent test of stability as i don't stress my system massively and only play games in a1-3 hour bursts...