I think it may be adverstised as PCIe 2.0 compliant (to take advantage of the newer bus-specification), but as BenchZowner pointed out, PCIe 2.0 is backward-compatible with PCIe 1.
Printable View
How bad is the V-Drop with the IP35-Pro?
Alex
ace,
why do you run a lower multiplier and higher memory speed what is the benefit vs 424 x9? other than extra bios options what would a bios update do for me?
man,
i can run good on 3.8 but it seems im not entirely stable. when i run bioshock(pc game) i play good but get random reboots not a lot though.it could be because of the game though. When i run 3d mark im good till i get to the cpu load test then i get reboots(using free 3dmark version) but runs fine at 3.6 gigahertz. heres my voltages...
" GO" step
ichio 1.55
cpuvtt 1.31
ich 1.0
ref 0
ddr2 2.1 volt tried up to 2.3
vcore at 1.55 with uguru showing 1.5 fluctuating ive tried up to 1.59 with uguru showing1.55 vcore
my pwn temps depending on volts are anywhere from 41c or lower up to 48c idle
i have done the bolt mod and im using more volts than you fyi
my memory is pc 6400 ddr2 800 g.skill gbhz 2 gig and its set to auto running a 4/5 ratio at 502 freq 5-5-5-15 2t. I did read you said i should be at a 1:1 ratio maybe thats teh problem hmm got any suggestions for an oc newb to find sability anything else i can raise up other than vcore?
i got this mobo and it works great so far....just one issue when I plug in my headphones there is a weird noise kinda disturbing but when i switch back to speakers it goes away? I have the latest drivers installed and using vista home premium 32 bit...For the headphones i am using the front jack of my p182
I've got over 400 hrs of oc'ed gaming time on my set-up so far,nice and stable,trouble free game time in vista,this is a solid mother board
that's the kind of reviewer that he is...very detailed, thorough!...his use of the bar graphs was very good.
ace,
why do you run 8x 480 instead of 424x9? how would a lower multiplier benefit you? thanks for the help btw:)
Bandwidth.
I just got my IP35 pro into a new case, cooler master cm 690, and I've also done a heat pipe mode using MX-2 and about 10Lbs of pressure on the sinks. I'm now ready to raise the voltages but not sure what the max is. here is what I have so far:
cpu: 1.48 bios
mem: 2.175
mch: 1.33
ichio:1.55
cpu vtt: 1.23
ich: 1.12
I'm trying to reach 3.6Ghz ++ I see a lot of people setting the cpu volts in the bios to 1.5+. My cooling can handle that but not sure if its safe for 24/7. Also I think increased MCH will help but not sure whats safe for 24/7. Any help would be appreciated.
well i seem to be using more volts to try and stabilize at 3.8 when i run p95 torture test my temps skyrocket they go from around 39c core temp to above 65c. I think i wanna stabilize at 3.6 with lower temps.
any idea at 3.6 what the mch.ichio,cputvtt,ich base volts i should start with and work my way up to stability?
i would NOT go above 70% on the CPU GTLRef for a quad core cpu...dual cores can handle higher but not quad cores.
Right now I might need to reinstall the os. When I run prime, abit eq, core temp, 2 cpuzs, and open paint to save a screen shot pc crashes. Even at much lower settings that I've primed 12 hours, gamed, and dled many torrents 24/7 without crashes. I'll bump up those setting you mentioned. I'm such a newb I don't know what they do. Are there any pages that explain what all these settings do? It used to be easy to understand. Thanks for the help.
EDIT: Ey yeah something isn't right cuz I primed 6 hours then played graw for 3 and then primed for 7 hours. Then I turned prime off and when I started paint my pc crashed. Beside that are people post there voltages in the bios or the voltage that shows up on abit eq? I have mine set to 1.5 in the bios now but abit eq says its 1.45. I assume this is safe. Also if I bump up my CPUGTL % Do I need to lower my cpu vtt?
Is that what u have it set on in the bios or is that read from abit eq?
mch volts how high is to high? i have been up to 1.48 mch.also whats to high for ichio?
I had a suspicion that it was cpu-z. But I checked and I'm using 1.41. Could still have the bug though. I'll try to take a screen without it.
EDIT: Here it is.
http://www.digitalmediaxtremes.com/ebay/scrn1-3.6.jpg
CPU-z 1.41 hard locks my system randomly also.
cpu-z also locks up my system randomly im on bios that shipped with mobo.
In the cpuz config file set sensor to OFF. It won't read the vcore correctly anymore but wont lock your system up.;)
Their working on fixing the problem.
http://forum.x86-secret.com/showthre...285#post108285
when i open the older version cpuz in idle conditions, i would get random lockups...when i upgraded to cpuz 1.41, i was ok opening it in idle conditions...the only problem was when i was P95 and then trying to open it while P95...in that particular condition, it froze on me...the way around for me was to leave it open and minimize it to the taskbar...then, i would open and run P95...doing that didn't freeze my puter.
look how Memset is not working any longer on this board...with the Uguru chipset and software, it is different in how the Pro board operates with 3rd party software like cpuz and memset.
so.....I am looking into buying this board , cause I like the layout and overall it seems like a nice board, but im lacking confidence, i am looking for a 24/7 great overclock not just once in a day for benchmark, im thinking maybe 3.5 to 4 Ghz maybe?? btw my cpu is a C2D E6600 so is this mobo gonna perform well for me???
The IP35 Pro is an excellent 24/7 rock solid board I am 100% sure you will love it.
Here is my E6600 with the pedal to the metal :D
CN.
====================
ABIT IP35 PRO (BIOS M629B11)
INTEL CORE 2 DUO E6600 CONROE 2.4GHZ 4M L2 CACHE
OCZ PC2-8500 SLI 2GB (2 x 1GB) PN:OCZN1066SR2GK
INNO3D 8800GTS 320MB (162.18 DRIVERS) (OVERCLOCK 617 X 955)
2 X MAXTOR MAXLINE 3 250GB HD'S RAID 0 (7V250F0)
SONY DUAL LAYER DVD RW (DRU-820A)
OCZ GAMEXTREAM 700W PSU
WINDOWS XP PRO SP2
CPU COOLING: THERMALRIGHT ULTRA-120 EXTREME
ORTHOS (SP2004) + 3DMARK2001SE + 3x CPU-ZCode:OC GURU:
CPU OPERATING SPEED................ - USER DEFINE
EXTERNAL CLOCK..................... - 470MHz
MULTIPLIER FACTOR.................. - x 8
# ESTIMATED NEW CPU CLOCK.......... - 3760MHz
DRAM SPEED (CPU:DRAM) 1:1.20....... - DDR2-1128
PCI EXPRESS CLOCK.................. - 100MHz
VOLTAGE CONTROL:
CPU CORE VOLTAGE................... - 1.5800V
DDR2 VOLTAGE....................... - 2.150V
CPU VTT 1.2V VOLTAGE............... - 1.20V
MCH 1.25V VOLTAGE.................. - 1.37V
ICH 1.05V VOLTAGE.................. - 1.12V
ICHIO 1.5V VOLTAGE................. - 1.50V
DDR2 REFERENCE VOLTAGE............. - 0%
CPU GTLREF 0+2..................... - 67%
CPU GTLREF 1+4..................... - 67%
ADVANCED CHIPSET FEATURES:
DRAM TIMING SELECTABLE............. - MANUAL
CAS LATENCY TIME (TCL)............. - 5
RAS# TO CAS# DELAY (TRCD).......... - 5
RAS# PRECHARGE (TRP)............... - 5
PRECHARGE DELAY (TRAS)............. - 15
REFRESH CYCLE TIME (TRFC).......... - 30
WRITE RECOVERY TIME (TWR).......... - 3
WRITE TO READ DELAY (TWTR)......... - 3
ACT TO ACT TIME (TRRD)............. - 3
READ TO PRECHARGE (TRTP)........... - 3
COMMAND RATE....................... - 2T
PCIE COMPLIANCE MODE............... - V1.0A
PEG FORCE X1....................... - DISABLED
INIT DISPLAY FIRST................. - PCIEX
ADVANCED BIOS FEATURES / CPU FEATURES:
THERMAL CONTROL.................... - DISABLED
LIMIT CPUID MAXVAL................. - DISABLED
C1E FUNCTION....................... - DISABLED
EXECUTE DISABLE BIT................ - ENABLED
VIRTUALISATION TECHNOLOGY.......... - ENABLED
EIST FUNCTION...................... - DISABLED
http://i106.photobucket.com/albums/m...x83DMARK01.jpg
3DMARK2003:
http://i106.photobucket.com/albums/m...x83DMARK03.jpg
3DMARK2005:
http://i106.photobucket.com/albums/m...x83DMARK05.jpg
3DMARK2006:
http://i106.photobucket.com/albums/m...x83DMARK06.jpg
AQUAMARK 3:
http://i106.photobucket.com/albums/m...z/Aquamark.jpg
SHORT DESCRIPTION:
470 x 8 = 3.760MHZ @ 1.5800v
5-5-5-15 2T @ 2.15V DDR 1128
My last board was a DFI Lanparty 939. It was one of the best boards I've owned. This board easily fill its spot. This board pwns at a good price. This is definitely an over clockers board. Look at how many pages there are for one motherboard.
Combo deal at Fry's B&M, thru Oct. 30:
Intel Q6600 CPU & ECS 671T-M motherboard for $268.99
Unknown stepping version on the CPU.
SiS 671 chipset motherboard is designed only for DDR2 667/533/400; includes onboard video and PCIe video slot.
Ace,
about the bolt mod it has worked great for me but my pwn temp is still a little higher than id like so i took off the heatpipes to take alook and im making contact on alll the mosfets. i am wondering if i would be better off applying some as5 on the bottom of the heatpipe WITHOUT the little rubber pad that comes on the heatpipe? is this a bad idea removing the rubber pieces on the heatpipe?
No!!! Use MX-2 I'm their new fan boy. It is neither capacitive or conductive. Don't ask me how, but it is. Trust me non issue if its on the contacts mine is and I used it on my cpu and my temps are lower than as5. I used artic silver for years. There are products out now that beat it. That relates to a question I have. after applying the MX-2 and some 10Lbs springs on the heat pipes my NB only gets warm with two high powered 40mm fans on it. Should I bump my ichio up to 1.65 to attempt getting my memory stable at ddr2 1200.
Well 4 cores are harder to mantain stable so im guessing my E6600 will be ok! and what do u mean by the cpu and ram, im used to only nvidia boards since my first build so i dont know exactly the relation between cpu and ram on intel i know its dif but not exactly how :S:P
I will definetively buy this mobo!, newegg has some open box mobo's for 134.99 its a great deal :D!
I've had this board for about 1 month and have found a stable OC of 3.4ghz with a Q6600.
I'm now having some problems with my WD Raptor 150gb hard drive. I would say that 50% of the time when booting up the computer, this hard drive is not detected. Also, while in Vista 64-bit and doing my usual work for a few hours, the hard drive will just disappear. Sometimes it causes Vista to crash. When the hard drive is not detected on boot-up, everything operates extremely slow. I'd say it takes almost 5x longer for Vista to boot up. This hard drive only has some games and other program files. My other hard drive has Vista on it. I still have the same problems with NO OC and with add voltage to both CPU and RAM. I use Optomized Defaults.
Is there anyway to check if the hard drive itself is faulty? I'm not sure if it's the hard drive or the motherboard.
I'm using the 11 BIOS which brings me to my next problem. I have the Razer Tarantula USB keyboard and I cannot type anything while booting up. I can use it while within the BIOS but say when I want to type "runme.bat" in order to upgrade the BIOS from a bootable USB drive, I get nothing. This has essentially stopped me from flashing a new BIOS. I'm afraid to try and flash the BIOS while within Vista.
The hard drive was working fine for about 3 weeks (the entire time from initial new purchase) but has just recently given me troubles.
Thanks guys!
What exactly does ICH and ICHIO control? What are some recommended voltage choices for both of these?
So why don't I need any ICHIO? Even 500x8 I didn't need any although that was only 32M tested. Needed more cpu vvt though. Maybe it's a quad thing???:shrug:
http://i76.photobucket.com/albums/j7...0Pro/39Ghz.jpg
probably...that is why i am hesitant to give anyone my voltage settings.
What DDR2 REFERENCE VOLTAGE does? Does it help at high fsb benches?
I have officially given up on my qwest for a stable 3.6 with my Quad. It is on of the low vid (1.2125) models and I have decided that it just does not like the voltage required for the 50% overclock. I can keep Prime or Orthos stable at anything under 1.4825 and any MCH below 1.5 or so but that will only get just a 3.4 speed. Those settings will last up to 3 hours in Prime before it just shuts off. Trying any higher voltages and it just crashes faster. I have decided that ONCE AGAIN, I have gotten one of the runts of the litter when it comes to chips. I will now sit back and wait on January.
i presume you did my mod and applied some fans to the PWM and NB?...AND...did you remove the TIM pad?...i do not recommend using that pad since it is probably not the best transfer medium for heat...use MX2, Ceramique with last choice being AS5.
Hey Man,
I am at 3.6 and 3.8 but am not prime stable but i can play my games and do everything without crashing thats all i care about. do aces bolt mod if you havent it works wonders for temps. my comp reboots in prime as well and i have a go version which i know will go to 4 gigahertz with ease i just need better cooling:)
Does anyone know if it is at all possible to use the motherboard on-board optical SPDIF input to pass the signal over to a PCI X-Fi sound card?
I want to route an optical out sound signal via the on board Soundcard for 5.1 surround sound
Any ideas or advice would be appreciated.
You should benchmark your computer to see the difference between 3.4-5 stable and 3.6-8 unstable. You'll be surprised to see that an unstable computer won't do much better than the lower clocked cpu that is stable. That has been my experience.
I'm building a new Intel core 2 duo IP35 Pro system. I have booted from a Flash Drive and flashed to the latest BIOS.
It worked great.
I installed an unformated SATA HDD
in SATA port 1. I installed a Samsung SH-SH182D CD/DVD burner
in the IDE Port. When I start the system, it gets to the "detecting IDE drives" then it lists my HDD drive model in SATA 1 and the other 5 SATA ports blank, which is correct. It then goes to the next page
and lists (in a green color) "0DD0 TSST CD/DVD SH182". I'm not sure why the green color and what the 00D0 means. When I go into
BIOS I can't find any reference to any IDE drives at all. I'm trying
to change the boot order to my Samsung CD/DVD so I can install windows. In the boot order part of BIOS the only CD ROM that is possible to choose is USB CD ROM. What do I need to do to get this done? Thanks for any help
Hi there.
I have had my Abit IP35-pro for about a month now with an Ubuntu 7.10 setup and sometimes programs suddenly close (firefox in particular) and today I had a hard lock (freeze) on the system. Here are the specs
Mobo : Abit IP35-Pro with bios 11
Cpu core voltage Bios : 1.4850 gives 1.45 reading in the voltage monitoring. Is this correct or is it way off?
DDR2 Voltage = 2.150 (Running 4X1gb Crucial Ballistix 6400 sticks)
CPU VTT 1.2V = 1.23
MCH 1.25V = 1.37
ICH 1.05V = 1.09
ICHIO 1.5v = 1.55V
Memory timmings are : 5-5-5-12, auto, auto, auto, auto, auto, 1T, V.1.0a, Disabled, PCI Slot
All "Cpu features" are disabled
The cpu is a c2d 6300 running at 500X7. Memtest runs fine for 24 hours with no errors and i have tested with cpu burn-in program from ubuntu for at least 3 hours and had running also some high definition movies.
Cooling is done by a TR Ultra 120 lapped. The c2d6300 is also lapped. Idle temps in bios are 38-39 celcius
System runs on a hyper typer-R 580watt and a Fortron 300w only for the GPU (8800gts)
Anyone got any recommendations as to what could be the fault here?
Thanks for any replies
P.S : Ace, glad to see you again in the forums :)
Ace if this was for me, yes I did the mod on the second board. Although I did re-use the TM pad on the PMW area. Unlike the first board I had 12 indentions in this pad. The temps are only a few decrees hotter than the first board that had Ceramique there. But my overclock results are exactly the same as the first board. Try to use higher voltages to get above 3.4 or so and things just shut down. I can run up to 3.0 at 1.2125. 3.2 takes 1.3125. 3.4 takes 1.4125 for Prime. Up to 1.4825 will hold Prime until the 32k tests, usually. Any higher vCore and the shut downs come much quicker. That is why I think it is the chip itself, 3.4 is just the limit for this one. different motherboards, 2 sets of Crucial, and 3 different psu's, all with the same results, 3.4 ghz. Now if someone wants to send me a different Quad to test my theory :shrug:
Hi "DD"!...glad to see you again...AND...very glad to see that you have the Pro board...you made a great pick!:up:
as for your problem, i would recommend raising your MCH to about 1.48 since you are using four sticks of memory.
the other two voltages to raise are your CU VTT to 1.35 and your ICHIO 1.5 to around 1.65.
you need to be aware that this board has given users some headaches when using four sticks of memory...other boards do the same.
Thanks Ace!!! I'm at work now. I will try those settings and report back.
Forgot to add that the PW area temp stays around 52 Celcius with the settings I have posted.
4gb's of ram are picky i know :mad: I'll try to stabilize the board by doing your mod and sinking some parts of the board
Again thanks :up:
I should get my IP35 Pro tomorrow! Been holding off for a while now but seems like the right board to get. (I haven't had an Abit mob since SlotA lol)
Plan on oc a Q6600 w/ 4GB (4x1GB) on water. Will post my clock when I get it setup.
Cheers,
emu
Will do!
Just have to wait for all my kit to arrive!
Hello. I have this problem with ABIT IP35pro. I can install WIN XP PROFI SP2 from INSTALL CD. In BIOS I see my 2x250Gb MAXTOR SATA1 HDDs. ACHI is disabled (IDE mode enabled). Install starting OK, but when I choose HDD for instalation and press ENTER PC show this problem: THIS HDD does not contain partion compatibile with WINDOWS XP.
What is mean? THX Neller
BIOS last: ver.14, HDD 250GB SATA1 MAXTOR, WIN XP SP2
Intel Chipset Software Installation Utility 8.5.0.1008 PC Version
Windows 2000/XP/Vista 32/64bits/2003Server Multi Langues & non officiel
Version 8.5.0.1008 WHQL
http://www.station-drivers.com/telec...8.5.0.1008.htm
Download:
http://www.station-drivers.com/telec...ivers.com).exe
you need to partiton the drives...formatting is not required, just make them into a primary partition and make sure one of them is set to "active".
if you do not have a windows OS installed to do the partitioning then i presume Maxtor has a utility to make the drive ready for windows install.
Yes, it is lapped. Big rubber washer used in the mount and it is solid as if bolted directly. When I get MCH above 1.5 and ICHIO above the corresponding step, forget actual voltage, it is just like getting vCore above 1.4925. It just makes the shutdowns come faster. The Quad just doesn't seem to like higher voltages. One thing I found while trying Orthos instead of Prime is when using only 2 cores 3.6 is no problem. Change to the other 2 and 3.6 is still no problem. Just cannot get it to use all 4 at that speed. I am open for suggestions.
let me understand this in my mind...you are still using the TIM pads on the PWM that came with the board or did you move on to ceramique, mx2 or as5.
Hy,
Is your drive recognize as CHS or LBA mode? You need to be in LBA mode to boot an Windows OS. It might be not that, but it happened to me with a brand new SATA hard drive. Check the internet and the maxtor's tools on there web site if you need to change the mode.
Good Luck.
neller's problem is the drive...it is not partitioned and set to be active...this has happened to several guys in this forum including myself...the bios is set to 'auto' and as long as he does not fool with that setting, the board will recognize the drive in the proper format.
I left the pad on the PMW area but used Ceramique on the NB and SB. It was an experiment to see any difference between the pad and Ceramique, which I used on the first IP35-Pro I had. I will probably change it out as the temps are not as low. I had read in this thread how some were doing the bolt mod but using the pad so I tried it to see the results.
On a side note, I decided to do a test last night to test 3.6ghz, but not with Prime or Orthos, but more along the "Ace" theory of will it work with what I do with the computer. Voltages were set to 1.4825 vCore (1.37 actual), 1.47 MCH, and 1.65 ICHIO. Speed was 8x450 with ram at 1:1.2 for DDR 1080@2.2v, 5.5.5.18. I then encoded a movie using CCE using multi-pass VBR. I have seen this scenario crash a Prime stable AMD system before. Encoding went off without a hitch. I then ran 30+ minutes of rFactor without a hickup. Maybe I am putting too much emphasis on Prime for my situation.
i would recommend removing the pad from the PWM and use a good thermal paste...my 1st choice would be ceramique but you do what you think is the best for your system.
as for prime 95 or orthos...i just read a post where this guy built this overclock system for another person and before he sent to him, he ran it for 24 hours on orthos without a hiccup...but...after the guy used it and went to move it to another location, it would not post at all....he thought he had built a solid system that was fool proof...my point is, and i think you understand now, that prime 95 or orthos guarantees you nothing....SO...why bother unless you are going to fold 24/7...there i see prime 95 or orthos might prove to be a valuable tool...but...that is the only one that comes to my mind.
Just got the ip-35 pro today and i got the damn C1 error, reseated the memory and moved it around for a good hour and still cant get it to boot.
i dont have another stick so im screwed.
ive tried everything and i still get the C1 error, i already started a rma so we'll see how that goes when i get the new memory back.
thats if the memory really is the problem.
My IP35 Pro is on its way from Clubit! Should i be using BIOS 11 or 14. Im planning on doing the bolt mod leaving the TIM pads in place. I have a Thermaltake Armor Case with a 25CM side intake fan. Do you think I still need the the 40mm fans for the NB and Mosfet area
Hello,
I just got my board and am trying to overclock my Q6600.
But How come the the lowest Vcore voltage I could go is 1.3125 ?
Aren't that too high ? Even or 3.2GHz ?
How do you adjust it lower ?
Thanks in advance ! :up:
http://www.canadacomputers.com/main....80&cid=RAM.812
Does anyone know if that ram is compatible with the IP35-Pro board or should I just get some of these?
http://www.canadacomputers.com/main....08&cid=RAM.812
Basically, I'm looking for memory that I don't need to screw around with. Just plug it in and go. No C1 errors or fiddling with a cheap stick to get the system up and running. Thanks for the help...
i thought that was code for a sledge hammer mod...LOL:D
the better it is for what?
there was/is a legend that if you have a low vid, that its a good overclocker. the only rhing that a low vid means is exactly what it is meant to be - it will run the default speed stable, at that vcore. the only other correlation i know of is that quads with low vid generally run much hotter at higher than default vcore than quads with higher vid, ie my 1.2v vid chip runs hotter at 1.3v vcore than some other guy's 1.275 vid chip does at 1.3v vcore.
Intel have revised the voltage specs for all C2D processors, the spec is now 0.85 - 1.5v :D
Link to Intel processor finder : http://processorfinder.intel.com
Link to the Q6600 SLACR spec : http://processorfinder.intel.com/det...px?sSpec=SLACR
CN :)
Ahhh, so the Vid doesn't really matter.
I have another question.
I am running Prime95 stress test on my Q6600.
It runs 100% stress on all 4 core at first.
But on the 2nd hour, it lowered to 75% stress, with the 2nd core at 10%.
Is there anything wrong ? :confused:
Though No error is shown on Prime (I checked Round off checking)
NOTE: I clocked CPU at 3.2 (356x9), with 1.3325 Vcore.
Is there any talk of Xtreme front side bus OCing in this thread I'd like to hit 500Mhz. right now I'm at 465. Definitely can feel the difference between. 395 x 9 and 465 x 7. What should I up to go further.
MCH @ 1.41
ICHIO @ 1.6
EDIT: thats funny now in windows it says I'm doing 465 x 9. What a glitch.
EDIT #2: and coretemp says I'm doing 597 x 7. I'm just an amazing OCer.
Your CPU volts are extremely low for an OC of 3.2ghz. I would put it to at least 1.40V. I know most Q6600 owners with this board will go to 1.50V because the vdroop on this board is pretty big. For example, my Q6600 has almost a .06V vdroop during load which makes an effect 1.44V if I select 1.50V in BIOS.
You can safely start at 1.40V and work your way up from there. You may need to increase other voltages as well as you increase your OC.
I would definitely use the 14 BIOS since the 11 BIOS that ships with most boards (I still believe that's the case) is almost 4 months old. I think most agree that the 14 BIOS is more stable than the 11 and provides better chance for greater OC.
As for your cooling, it all depends on where the 25CM fan is blowing. The PWM heatsink will get the hottest so if you put a 40mm fan on anything, I would put it there. I have the bolt mod installed and 2 40mm fans, one on the NB and the other on the PWM. Honestly, the 40mm fans push so little air that I'm not even sure it's doing anything. I know my CPU tuniq tower 120 heatsink is doing the majority of cooling on the PWM and not the silly 40mm. It's your choice. Your 25CM likely puts out a lot of air flow so if it's directly over the PWM or NB heatsinks, then I don't believe you will need any additional fans.
As for my PWM, it gets bloody hot even with a 40mm fan and the bolt mod installed. After 1 hour of Prime95, my PWM will be over 80C!! It's unreal.