View Full Version : Urgent: Prometeia help, please
Liquid3D
05-14-2003, 09:15 AM
I just restarted my Prommie and my CPU temp if 15C (57F) and my Microfreezer reads -41C. Obviously the CPU temp is high for non-overclocked CPU, and I notice the compressor is running hot enough to burn my hand if I hold it there. I know they say never open it up, but having the first unit damaged in shipping I wanted to check. It looks like UPS did lay this one on it's side as well as there's minor denting where the compressor contacted the side panel. As far as CPU/Microfreezer contact, I retested the contact before installing as usual, there was the "smudged" thermal paste. But with five washers per side, and still contact problems I'm confused?
Anyway, I'm very concerned over the Compressor running so hot? Should I shut it down? I'm very close to doing so. I thought I had the CPU-Microfreezer contact thing resolved, but it looks from the temp this isn't so. Please help
rabeb25
05-14-2003, 09:29 AM
hey man
what mobo?
and my compressor runs hot too, a lot hotter with the 404 in her.
DaGooch
05-14-2003, 09:57 AM
Sounds normal if you have an Epox 8RDA+ as the socket temperature sensor is not very accurate.
rabeb25
05-14-2003, 11:32 AM
yea no doubt, my 8rda+ never read below 2c with -53c evap temps, while my nf7-s with its probe in the socket read -20c in bios. Who knows.
DaGooch
05-14-2003, 12:10 PM
Evaporator temperature sensor reading -44C here and bios readings are +20C on the 8RDA+ here and seems to be the norm for most 8RDA+ users on the Prometeia. :(
Liquid3D
05-15-2003, 12:18 AM
Thank's guys. I don't know? It doesn't make sense to me. My SLK800/Vantec 84CFM run's 16C to 26C normally. I know people find these temps unreal, but since buying the SLK800 w/Vantec Tornado 84CFM, it's been on four different mobo's, three different CPU's and these temps are across the baord using both CPUCool, MBM-5, and Soltek's temp monitoring software. I always leave the side panel off the case, and the PC is near an open window. I live a block away from Newport harbor, and several blocks from the Ocean, it's cool here. In fact I'll include a pic of my current temps on this Soltek mobo (being the 5th mobo this SLK has been on) and these are some of the higher temps, I've experienced because of the JIUHB running warm overclocked.
Point being if the Prometeia isn't going to run the processor well below -10C, what's the point of the microfreezer?
The temps today 16C (+) were on Epox 8K9A default voltages, at 12x166FSB which is basically the same as the default 15x133FSB the 2400+ runs at. Vcore is 1.65V.
CodeRed
05-15-2003, 02:40 AM
Originally posted by Liquid3D
<snip>Point being if the Prometeia isn't going to run the processor well below -10C, what's the point of the microfreezer?
<snip>
Point being is that the prom will run the cpu @ -10 deg C but your temp sensor is telling you BS or you have really really bad contact with the CPU.
Does the evap temp rise significantly with load eg what does it read at say 2500 MHz, Vcore 2V & running prime.
Liquid3D
05-16-2003, 01:33 PM
Thank you CodeRed i totally agree with you. And I contacted Chip-Con, they assured me the Compressor temps are normal, and that most likely my BIOS temps are inaccurate. But I know that if the Microfreezer can hold -45C, it's a contact issue i need to resolve.What do you think the maximum number of washers can be placed under each mounting screw? If the the screw heads are begining to protrude from the back of the Microfreezer, their no longer flush, there's obviosly a contact problem. Does your microfreezer seem to be under any tension when you mounted it? I mean the hose is stiff, when "twisted" and I know the bracket, and mounts are correct. so I think it's actually mounted perpendicularlly on the core, and this along with something I've missed is contributing to this issue. I don't mean to "bad-rap" Prometeia, I love it, and I know it'll work. It's just a frustrating start for me.
BTW I haven't overclocked the CPU, to test Load, so I don't know the answer to your question. I'm going to check the conatct again, ensuring i haven't done something wrong, or possibly even remove a few washers as six per side hasn't ameliorated the problem. There MUST be something I'm missing.
The Prommie LED isn't misreading either, because I originally tested it, by grounding 13/14 famle pins on a PSU, as instructed on pg.7 of manual. It was Freezing to the touch, once the temp started dropping. And I cut the PSU power at -25C.
CodeRed
05-16-2003, 05:48 PM
Well if you are running at stock speeds then -44 deg C on the evap is totally normal. Just try and up the voltage to say 2V and the evap temp should come up signficantly under load. eg 2600 MHz @ 2V I would expect -30 deg C on the evap @ full load. If it doesnt come up then examine the head contact.
5 washers is probably excessive, I run two extra and have never had a contact problem. Are your bolts tightened all the way down until then cant go any further?
Liquid3D
05-17-2003, 02:38 PM
Originally posted by CodeRed
...Just try and up the voltage to say 2V and the evap temp should come up signficantly...5 washers is probably excessive, I run two extra and have never had a contact problem. Are your bolts tightened all the way down until then cant go any further? Yes the bolts are definately tight, and since I haven't taken it apart to check contact since the post, I'm going to verify contact per your suggestion. Astute advice, that seems like a fool-proof method for determining contact integrity. Thank you!
I'll let you know the results.
Holst
05-17-2003, 02:53 PM
Just to clarify the insocket sensor on the 8rda+ is HIGHLY INACURATE when using phase change, your temps may easily be 30*c off.
just uninstall MM5 and take codereds advice and use evap temp to guage your contact.
Liquid3D
05-18-2003, 08:27 AM
Thank you, I'm doing that in a few minutes.
JCviggen
05-19-2003, 02:27 PM
One more thing to add
the mosfets and voltage controller get really hot on the 8RDA boards and the heat gets into the socket, also because there is little or no airflow around them. When using air cooling, this automatically generates airflow making the problem less bad.
With aircooling, and 8RDA will show the temps as too low. With sub-zero cooling, it will read them too high.
Bottom line, the socket thermistor's temperature never really changes that much, hence the f*cked up reading
Liquid3D
05-20-2003, 01:02 PM
Thank's Guys She's about to start running/testing.
I agree with JC on the RDA airflow issue.... I have tested it myself, and with no airflow above the area the temps read much higher because of the ambient heat surrounding those fets.
Holst
05-30-2003, 08:22 AM
On my 8rda my CPU temp in the bios is 30*c with my evap at -30 odd
I think JC is right that the mosfets are putting out so much heat that they warm up the bottom of the socket (plus I filled the socket with neoprene as im a bit paranoid)
I dont have any heatsinks on mine (not needed IMHO) and they are about 80*c even with a fan on them..
Not that 80*c is out of spec...
I see that heat as free condensation protection :P
Ive found the evap temp very handy, but I no londer look at motherboard reported temps at all..