[Etacovda]

Hehe, At least people are reading.
Doubt it is a block design issue. .1V shouldn't add 5C at the same MHZ setting on any block no matter how poor it is. Probably a Chaintech design issue.

Yeah, I thought it might be that (I knew that would get a giggle too ) - I also read that PH had issues with his test bed when his PSU was doing some wierd things. This psu (very cheap 300w version) is doing some weird things, I think that 1.95 was too much stress for it - in fact, im certain of it, because the ATX wires were pretty damn warm... (wtf?). That, and I don't trust chaintech myself, and would never buy their mobo's or touch them with a 10 foot pole - wasnt my board or cpu.

A water temperature (or ambient) would be handy. If I remember correctly, lm90 + Tbred has an error of +6/-4, nearly all of which is systematic error (the offset will be constant for a given lm90/Tbred pair). You can roughly determine that error by plotting delta-T (CPU minus water) vs multiplier (keep Vcore, FSB, etc. constant).

Prime95 isn't a good heat loading program, and running two instances just increases OS overhead and risks cache thrashing. Use K7burn.

A good possibility for the excessive heat increase is that your CPU is at the edge of stability (a distinct possibility at 1.92 with a Tbred A). At the lower voltage the CPU is doing less work than expected due to cache ECC errors and is idling during the subsequent calls to memory to fetch the correct values. At couple more voltages above, between, and below your two data points could tell the tale.

Well, I dont really have access to any decent thermal equipment, I'll have a look around tonight (not my house, dont want to poke around too much ). One of my cases comes with a front sensor with 3 sensor inputs, so I might check that next to a mercury thermometer with some warm water and see if its fairly accurate or not. Its very responsive, not that that means much. I'll be investing in a multimeter with K type thermocouple... if you go to www.dse.com.au and type "k type" in the search field, it'll come up. They dont allow direct linking, unfortunately (well, not that i can get to work).

I normally use BurnK7, but this was done in a bit of a rush. Hell, I don't even know if my seating was alright or not, but the thermal paste print didnt look off, It looked ok. If the mounting pressure was too low, would could this be a symptom of it?

I'm not sure what your block looks like, but 3 mm is rather thin for a simple-low flow block design. A 5 C temp is not unrealistic, given that.

I see... this is a #Rotor style design. Maybe #Rotor has some insight, for baseplate thickness?

What pump did you end up using?

Its a semi-blend of designs; I didnt feel right completely copying designs, I aimed for a high turbulence above the die with an easy route out of the block. The next block will be considerably different, I think - probably a bit more restrictive and turbulent.

The pump is similar to an eheim 1048 in performance. Not particularly impressive, but I measured 1.5gpm though the entire loop, which I dont think was too bad. After looking at Ph's performance curves for WB 1.5gpm seems a good enough area to be aiming for?

I just read a review today that suggested the Chaintech diode/voltage monitoring hardware wasn't very good.

Yeah, i gathered this might be the case. I'm getting a DFI lanparty Ultra B NF2 board this week, but I think they're thermistor only, which is a bit dissapointing. Not entirely sure though, haven't done a whole lot of research yet.

Thanks for the help guys, hopefully with some better equipment I'll be able to see more clearly where everything is at.