Prometeia Mach 1 Temps :(

[EnJoY]

Hi, I'm kinda new to this phase change stuff, but I recently purchased a Prometeia Mach 1 for my 1700+ JIUHB 0310UMPW. I have ddr 500 memory and a great motherboard(the new Leadtek Deluxe whatever). My problem is that my prommie says -41C on the front panel, but in the bios, it tells me it's 3C and such and at 2.4ghz it gets to 8C and is as high as 11C at 2.6Ghz. And because of this, I can't go any higher than 2.68. Can you tell me what I am doing wrong? Or are these temps normal?

I have removed two washers from each screw to get the die closer and performance hasn't changed. Does anyone know how to get my temps better? What am I doing wrong? Thanks.

[Ragnarok]

removing washers only reduces mounting pressure..

[TheDude]

Go by the bios temps, they look pretty normal for a Mach1 with that kind of heat load on it. I'd say 2.6 out of a 1700 aint too shabby...not every 1700 will give you 2.9 to 3.0 ;) Your prommie display on front panel looks off...I would think it would be reading more like -27c

[EnJoY]

damn, I knew it. My temps actually increased a few C when I did that. Also, I just read that having too much seal string can be bad? If that's correct, I have quite a lot so that could be my problem. I'll play around with both these things.

Please keep replying if you have any other ideas.

[lallend]

Hi EnJoY, and welcome to the forums!

Ragnarok is correct, you need to be adding washers! That plus give you TIM a couple of days to settle down.

Something else that is a BIG factor (for the NF7-S anyway) is the BIOS version. I have seen reported BIOS temps vary as much as 10-15 degrees depending on the BIOS used

hth

[Svenn]

-41C on the evap? Hrm... mine is only -32C idle... Only thing I can think is bad contact if the evap isn't getting any hotter. My evap temp is only -41C without my system on.

Also, adding to what lallend said. It depends if it's reading on-die or in-socket... and if/how much the bios adjusts temps for reading in-socket....

[EnJoY]

I had an NF7-S 2.0 before, and my temps were quite similar. And I had the latest BIOS, version 18, and supposedly that one reported rather accurate temps. So I feel they are accurate.

[Tingle]

I have a 1700+ running at 2.85GHz currently

Evap sits around -39C and the BIOS reports around 10C using BIOS 16

If you are using any other BIOS then expect anything between 5 to 10 degrees difference (higher)

I have always been worried about my high temps but i have checked and rechecked the contact, used as little seal string as possible to ensure the contact is correct, and it still stays around this temperature.

This is a mach2, but the temps are pretty much the same so I have been told

Tingle

[TheDude]

I agree that you shouldn't be too concerned about your bios reported temps, but would not dismiss what Svenn said about evap seating. It could be that by removing the washers, you decreased core contact resulting in lower temp (-41) being reported on display panel. When you crank that back down, I bet you see your temps go up to -27 to -32 range...which is a good thing;) ....means you are getting good core contact.

[DarKcyde]

My Abit read 25-32C in the bios, but the evap temp under load was around -23C. Nforce boards dont read the cpu diode directly, they only read the temp probe in the bottom of the socket. That doesnt always get the best contact, or read that accurately in the first place. You're prolly also running the heater element on the back of the mobo, which will heat up the socket alot. I'm sure that has a lot to do w/ the temps it shows.

We all realize its hard to do, but running phase change u gotta learn to just ignore BIOS cpu temps, and concentrate on other things you know are accurate. Like evap temp, and whether the cpu can handle the clocks you're pushing.

Add more washers. Put as little seal-string as possible while maintaining air tight seal. Give the TIM a bit to cure. You wanna get your evap temps HIGHER, cuz that means you're putting more load on it, thus removing that heat from the cpu.

BTW, what kinna vcore are u running thru it?

[EnJoY]

Thanks for all the replies, you guys are by far some of the most knowledgable people I've met. I appreciate all your input.

So what did I do?

I added 3 more washers, took off the shim, added more ceramique after cleaning off the copper. Then I took off most of the seal string, because I had used waaaaay too much. I left only a sinlge line under the black socket thing that goes on the mobo and a single line between the evap head and that. I reattached it and my temps were slightly higher, about 3-4C at 2.2Ghz, and my evap read -43C. I let it settle, did some benchmarks, oced a bit and right now I'm at 2.59Ghz with 470FSB. My evap reads around -36/-35C and my temps in the BIOS read 10C or so. My voltages are 1.7 for the chipset, 1.7 for vcore, and 2.8 for memory which is at 2.5-4-4-11.

I've hit a wall this time at 480FSB/2.6??Ghz. I was at 1.8volts for vcore, 1.8 for chipset, and 3-5-5-11 and still could not hit it stabely. So I'm thinking I may be able to at 1.9 vcore, 1.7chipset, with 3-4-4-11 timings. My goal is to reach 500fsb at atleast 2.7Ghz. If I still can't do it with my current setup, I'm going to remove the heater and just use some dialetic and neoprene on the back held down with seal string.

How does this all sound?

[TheDude]

Sounds to me like you are on the right track! I don't use my heaters anyway...just watch for condensation and you should be fine..good luck! ;)

[Ragnarok]

sounds great dude, I also found the shim to be a complete piece of trash and useless! (it's is damn hard to chip a cpu with the prom as it is!)

[TheDude]

I never even chipped an AMD with my old Vapo Classic. Now my Mach1 has a four post mount and a Baker evap so you couldn't chip one if you tried.;)

[Marci]

You've hit a wall cos your only giving it 1.8vcore... I myself run at 2.05v... most others here are running 2v+ too... at 1.95v you should be able to get 200x13.5 (2.7Ghz) outta that chip on a MkI no probs... should top out at around 2.76Ghz...

11x250 is what you're aiming for but you're gonna need 3v and upwards for your memory, timings at around 11,4,4,3, and a vcore of around 2.3v to get it to sit steady at it at a guess... and then your evap temps will be at around -15 to -20...

[TheDude]

Marci is right on as usual...I didn't even notice your low voltages until just now rereading your post...you still have lots of room with prommie cooling.:D

[EnJoY]

http://www.xtremesystems.org/forums/showthread.php?s=&postid=246911#post246911

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I wish my voltages wanted to work... :(

[TheDude]

I have heard of others having that problem with that chip not liking high vcore. I have run several 1700s in my prommie and never had any trouble with high voltages. My last one was solid as a rock at 2.8 and booted at 2.9 but would random reboot on me once in a while at 2.9 I'm kind of at a loss here as what to tell you. Anyone else have this problem and find a fix? Hopefully someone will suggest something. Saaya said in the other post of yours that there is a thread with a solution?

[Walrusbonzo]

I thought I was doing quite bad, but having seen this thread I don't think so. I'm more or less stable at 2.8GHz with my 1700+. Using 1.9v.

Evap Head temps are about -27C while my BIOS/MBProbe temps are between 12/14C, this is with the latest NF7-S V1.x BIOS, BETA 2.2. I have got my front fan at 12v though while the rear one is at about 6-7v.

[Liquide]

It could be also that your mosfets are overheating.

I could barely do 2.5GHz on my old 8RDA3+ and I thought I had a crappy CPU, but I added two small heatsinks on the mosfets and put a fan to blow on them. Bam, all of a sudden 2.85GHz with the same CPU :)

[TheDude]

Originally posted by Liquide
It could be also that your mosfets are overheating.

I could barely do 2.5GHz on my old 8RDA3+ and I thought I had a crappy CPU, but I added two small heatsinks on the mosfets and put a fan to blow on them. Bam, all of a sudden 2.85GHz with the same CPU :)

Good point....I remember adding several to my Epox mobo helped me with my OC also. How is your North Bridge cooled? :thumbsup:

Walrusbonzo,

I'd say you are doing quite well! I had to go to 2v just to boot at 2.9...sweet chip!