What is PWM Phase4?

geordie56 · 15 Feb 2009 at 13:19

Hi, i have run more tests on my pc and found that on shutdown it is beep enabled on my mboard. I have eliminated each beep one by one before it crashes and this is the problem. The temps on phase 1-5 are all set to maximum 125 degrees C and 4 carrys on past this into the 130s then shuts down. What is this and can it be fixed? thanks guys in advance.

Abit IN932X-MAX Mboard, Intel 6850 Quad Core Extreme
OCZ PC2-6400C5 Dual Channel Vista Gold Series Ram 8Gb
2 300gb sata Hard Drives, 2 NEC DVD re-writer drives
1 Samsung 1TB spinpoint hard drive
Coolermaster 1000W PSU, x2 BFG 8800GTX Overclocked and Watercooled
Thermochill 3 Fan Rad + Laing Pump with XSPC clear top + XSPC Drive Bay and 1/2" Tygon Hose running 2 GPUs
Thermochill 1 Fan Rad + Aquaero Pump + Aquatube Res + 10mm Hose running CPU
All controlled via Aquaero monitoring system running Vista 64bit

Cob · 15 Feb 2009 at 14:55

PWM's would be the MOSFETS under the heatsink to the left of the CPU socket.

I've no personal experience with the 680i boards, so I'm not sure if they give a temp reading for each of the MOSFETS. You may try to find out the max temp for the boards MOSFETS (they're designed to run at well over 100c, but 130c certainly sounds a tad too toasty.

If necessary you may need to remove the heatsink from the motherboard and ensure that it is making contact with each of the MOSFETS.

setter · 15 Feb 2009 at 15:13

The abit in932 max is a reference design like the evga and bfg 680i boards, so the pwm does run a bit toasty on them. Perhaps consider removing the heatpipe assembly and redoing the thermal paste on them with arctic silver ceramique, i had a very hot running evga 680i and redone the nb, sb and mosfetts on it, and it dropped the temps a fair bit. See this link for an example of the shoddy paste job on theese boards.

http://images.google.com/imgres?img...s?q=abit+IN932X-MAX&gbv=2&hl=en&safe=off&sa=G

geordie56 · 15 Feb 2009 at 15:59

Thanks guys i am just in the middle of trying to find a waterblock and just add it to my loop. You dont know of any that fit do you? Cob yes mate they do have seperate readings and its 4 that is hot enough to fry an egg the others are still around 100-110 under full 100 percent load though with prime.

Guardsmon · 15 Feb 2009 at 16:15

thermalright make mosfet coolers that work pretty damn well. Not so sure about watercooling though.

BUFF · 15 Feb 2009 at 20:17

setter said:
The abit in932 max is a reference design like the evga and bfg 680i boards,

it most certainly isn't a reference design.

MIPS did a PWM block that fits the IN9 32X.

setter · 16 Feb 2009 at 00:20

BUFF said:
it most certainly isn't a reference design.

MIPS did a PWM block that fits the IN9 32X.

Buff, the abit board is extremely similair to the evga and bfg 680i boards, asus departed from the original spec, i had a 680i a1, clocked my e6600 to 3.7ghz on air, was a crap board with my q6600, bought a p5q deluxe, knocked the quad to 3.8ghz on air very easily