Official ABIT IP-35 Pro Review/Overclock/Guide Thread

BUFF · 18 Sep 2007 at 01:44

How are you cooling CPU & system?
A quad draws twice as much amperage as a dual so you will get higher PWM temps particularly when overclocked.
55C idle seems high though.

muggs · 18 Sep 2007 at 01:54

starmanwarz said:
I just tried to OC my Q6600.I tried at 3Ghz 1.3050Vcore,and the PWM went up to 80C and the board started beeping!!Is this normal?PWM idle temps are 55C with everything at stock.Can it be a faulty board?

80c ive had 90. were you priming it when it went up 2 80?. we have the same case all i have done is add a 80mm an above it. wedged against the psu and the 120mm exhaust fan. my temps are 70c when priming now.

i think your problem is the pwm heatsink is not flat on the mosfets.

im at 3.6 idling at 45(with fan) but you are at stock with stock volts. seems high. i checked the flatness on my heatsinks before i started working on the board. they seemes ok. here is a link for you

http://forums.anandtech.com/messageview.aspx?catid=29&threadid=2088653

starmanwarz · 18 Sep 2007 at 10:32

BUFF said:
How are you cooling CPU & system?
A quad draws twice as much amperage as a dual so you will get higher PWM temps particularly when overclocked.
55C idle seems high though.

Cpu is watercooled.

starmanwarz · 18 Sep 2007 at 10:37

muggs said:
80c ive had 90. were you priming it when it went up 2 80?. we have the same case all i have done is add a 80mm an above it. wedged against the psu and the 120mm exhaust fan. my temps are 70c when priming now.

i think your problem is the pwm heatsink is not flat on the mosfets.im at 3.6 idling at 45(with fan) but you are at stock with stock volts. seems high. i checked the flatness on my heatsinks before i started working on the board. they seemes ok. here is a link for you

http://forums.anandtech.com/messageview.aspx?catid=29&threadid=2088653

Yeah I was running prime for 2 minutes when the board started beeping.Thanks for the link,looks like Im not the only one with this problem.Where exactly did you place the fan?Do you have a pic?

BUFF · 18 Sep 2007 at 10:41

starmanwarz said:
Cpu is watercooled.

so the PWM doesn't get the air flow that it normally would from an aircooled cpu & hsf.
You need to improve airflow over that section of the board (or get a block for the mosfets too).

starmanwarz · 18 Sep 2007 at 10:44

BUFF said:
so the PWM doesn't get the air flow that it normally would from an aircooled cpu & hsf.
You need to improve airflow over that section of the board (or get a block for the mosfets too).

There are 3 heatsinks in this board,I think that the PWM one is the middle one,right?How can I improve airflow?

starmanwarz · 18 Sep 2007 at 11:18

Im giving it another try,running prime for 15 minutes now 9x 334(3Ghz)at 1.2850V,PWM temps have stopped at 83C.

BUFF · 18 Sep 2007 at 11:38

starmanwarz said:
There are 3 heatsinks in this board,I think that the PWM one is the middle one,right?How can I improve airflow?

The PWM section is in the top left hand corner of the mobo between the socket & the IO plane.

You can put a fan in as muggs said.

starmanwarz · 18 Sep 2007 at 11:46

You mean a small fan,like the ones that come with some boards chipsets?Because I cant understand how I could place a bigger fan.Prime running for 43 minutes now,PWM is at 82C and cpu temps at 52 52 49 46,what do you think?

fornowagain · 18 Sep 2007 at 12:09

Scoobie Dave said:
Do you know where you can get the 1Kohm resister from to do this mod? The vdroop is terrible on this board with quad.

I do, but I can't give you a link, they're a competitor. Best I can do is give you a part number to google. UH23A

muggs said:
i think your problem is the pwm heatsink is not flat on the mosfets.

First thing I did was bolt down the PWM heatsink, do away with the plastic pins. They don't apply enough pressure.

starmanwarz said:
You mean a small fan,like the ones that come with some boards chipsets?Because I cant understand how I could place a bigger fan.Prime running for 43 minutes now,PWM is at 82C and cpu temps at 52 52 49 46,what do you think?

Yeah, I have 3 40x10mm fans all controlled by the board, assisting the cooling. I wouldn't worry to much what the sensor is reading, as its very close to the hot areas. I'd concentrate on getting some air over the hottest components. There are two rows of capacitors that get impressively hot. The one's tucked in behind the PWM heatsink get no air flow at all, be careful they're hot enough to burn, ouch.

starmanwarz · 18 Sep 2007 at 12:15

Do you think that 82C after more than an hour of prime testing is dangerous?I know that 3Ghz is not enough and I will need more,but is it dangerous for the capacitors?What temps do you get fornowagain?Oh and Im running prime 25.2(using XP SP2)is this ok?

fornowagain · 18 Sep 2007 at 13:16

As I said, don't worry to much about the sensor temp, mine is mid 60s. I can place a fan to drop it way down and still have 100C capacitors. If you get some air over the caps they should be cool enough to touch without burning.

starmanwarz · 18 Sep 2007 at 13:24

Alright,Ill buy a 80mm or a 60mm then.I had prime running for almost 2 hours,everything seemed ok,I stopped it and increased fsb to 355(3.2Ghz) and voltage to 1.3550 was monitoring for PWM temps,went up to 86 and then I closed it again.I will try again when I get my fan.

Teaf · 18 Sep 2007 at 13:53

Can you get a custom MOSFET cooler for this board? I heard the HR-09's dont fit (U or S type).

Scoobie Dave · 18 Sep 2007 at 14:02

fornowagain said:
I do, but I can't give you a link, they're a competitor. Best I can do is give you a part number to google. UH23A

Found it.

I dont suppose you could tell me which bits you wire up to where?

starmanwarz · 18 Sep 2007 at 14:04

flibby said:
Can you get a custom MOSFET cooler for this board? I heard the HR-09's dont fit (U or S type).

A fan will do the job,right?Im not very good at modding and these coolers are a bit pricey.If I want to remove the PWM heatsink to place it correctly(if it isnt already),will I have to remove the whole heatsinks/heatpipes thingy?Is it difficult?

fornowagain · 18 Sep 2007 at 18:39

Scoobie Dave said:
I dont suppose you could tell me which bits you wire up to where?

Then to the middle leg and either one of the outers of the vr. I arrange mine so clockwise increases the resistance. Set it to about 700ohms first, then wind the resistance down with it under load, the vcore will increase. Keep going until the bios selected value reads the same as the vcore (actual from DMM).

starmanwarz said:
A fan will do the job,right?Im not very good at modding and these coolers are a bit pricey.If I want to remove the PWM heatsink to place it correctly(if it isnt already),will I have to remove the whole heatsinks/heatpipes thingy?Is it difficult?

Yes the whole assembly has to come off, not hard. Just use a pair of thin nose pliers and have some replacement TIM, Céramique is the best bet for this job.

wuyanxu · 18 Sep 2007 at 18:59

a quick and simple question:
is the 4-pin Molex connector between PCI-e and PCI (in the most unusual place) needed for single 8800GTS configuration?

it messes up my carefully planned cable management

starmanwarz · 18 Sep 2007 at 19:08

I just placed a 80mm 1500rpm fan above the PWM and below my PSU,its not very stable but it does the job.The distance is about 6 cm.Before the fan I was getting 82C at 3Ghz after an hour of prime testing and now at 3.2 1.3650v I get 73!Thats not too bad is it?I havent re-assigned the heatsinks because im too lazy too do it

.What temps do you guys get?

Teaf · 18 Sep 2007 at 19:17

wuyanxu said:
a quick and simple question:
is the 4-pin Molex connector between PCI-e and PCI (in the most unusual place) needed for single 8800GTS configuration?

it messes up my carefully planned cable management

I'm pretty sure that molex connection is only when running Crossfire.

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