Opty 165 CCBBE Core Temp Question

[Noubourne]

I've got a Scythe Infinity on my Opty 165. With 1.36v reported in CPUZ and SmartGuardian (higher set in BIOS), fully loaded CoreTemp is telling me I am getting 50C load on one core, and 58-60C load on the second core. I feel that this second high temp is limiting my overclock.

If I run Core 0 only on Prime 95, it will go forever and doesn't break 43C.

If I run Core 1 only on Prime 95, it will go forever but it does so at 55C.

Running them together pushes my 2nd core above 60C, and it fails after about 15min.

I can do stable at 2.8Ghz at just barely over stock volts. Because of the low volts required to do 2.8 though, I really think I should be able to coax more ouf of this chip.

Currently testing 2.9 and getting the temps I'm reporting above.

I know that one chip will limit my overclock - weakest link and all - my concern is that I am limited due to temps and not because of it's general overclockability.

What do you guys think?

[likewhoa]

these are server chips and run very hot i wouldn't worry about temps at 40-45 but anything over 50C is gonna limit your overclock,.. I would add more case fans, do cable management, use AS5 and relax some of your RAM timings if they are currently tight. other than that you're pretty much gonna hit a wall at 2.95 on air unless you have good ambient temp.

[SparkyJJO]

remove the IHS for a more even temperature between the cores.

[RPGWiZaRD]

It seems Opties are really picky about temps, in my experience somewhere at 57-60C (coretemp) is where the instability starts to kick in but if you can keep them at reasonable let's say just below 55C they can go forever in Orthos.

The prob is sticking an Opty below such temps with aircooling tho, at least below 50C is very hard. I get like 43-44C on one core and 48-50C on the other (MBM5 or the "old" sensor shows only 40C tho) whit sidepanel removed and add like 5-6C with case shut when running 2.8GHz @ ~1.42v. This is during winter so so add like 3-4C during summer.

Mind my IHS is removed, I'm using a Big Typhoon and 9x case fans. :rolleyes:

At best I even notice this with comparing sidepanel off and on running in Orthos... But in my case a proper cable management would help a lot but it's impossible for me, I've got PowerStream PSU which many of you probably know for the rough cables and a Thermaltake Armor which doesn't offer the best cable management jobs, 9x case fans, 3x pata hdds + 1x DVD-RW in front and 3x SATA at back, 2 molex y-cable splitters, zalman molex->2x5v+2x12v cable splitter etc. only thing I can do is to use straps and tie the cables together. :(