Printable View
The only thing I can think is if I am reading you correct that the
resistor you say is < / > is no longer making a link as such no
voltage is being feed back to the sense pin and as such the
IC has gone and maxed out as it see's 0 volts knows it should be
1.6v does not see it and compensates to its max hense 2.xx volts.
think ur right. anyway to fix this?
OndeOlav YOur board is borked! That happened to me too... that's why i used glue the second time. If you even touch that resistor with the iron, it's dust.
You wanna hear something freaky about board frying? Well get this...
I was taking a memory reading, and when touching the ground w/ my multimeter pin I hit a jumper AND the ground, and there was a "POP!" below the 5th PCI slot, there was SMOKE and my screen went garbled.
But geuss what, I reset the CMOS and it worked!!! I will take a picture to show the damage. The 5th PCI may be broken, but like I really care :P
It was the craziest thing. So some advice, BE CAREFUL when you're poking around w/ a multimeter probe!!!!!!!!
Something like that happened to me a while back, I was searching for the VDD with the probe, and bang, the puter sputtered, shut off then restarted... all was ok though.Quote:
Originally posted by sysfailur
You wanna hear something freaky about board frying? Well get this...
I was taking a memory reading, and when touching the ground w/ my multimeter pin I hit a jumper AND the ground, and there was a "POP!" below the 5th PCI slot, there was SMOKE and my screen went garbled.
But geuss what, I reset the CMOS and it worked!!! I will take a picture to show the damage. The 5th PCI may be broken, but like I really care :P
It was the craziest thing. So some advice, BE CAREFUL when you're poking around w/ a multimeter probe!!!!!!!!
Does anyone know if the mod is the same for the Non-Deluxe and the Deluxe version? I have the Non-Deluxe and I'm just wondering if it's still the same.
Finally 200+ !!!
Just got through with the VDD mod and works great now running at 200mhz DC Sync.
used 1.5 Meg and gave a VDD of 1.78v
Thanks guys for all the work !
If you cannot re-align the resistor or if you have overQuote:
Originally posted by OndeOlav
think ur right. anyway to fix this?
heated it that its fried i'd be inclined just to short it
completely then make a link off to ground not sure
how much current is on the other side of that resistor
so shunting a short to ground might have a knock on
effect else where not sure if there are other resistors
further down the chain.
The best option I can see is remove the resistor.....
I take we are talking about the one I said link to?
If so remove and see if you can solder a wire to each
point of the removed resistor then bridge each wire
with a 200Kohm resistor then link off the left side wire
to your 2Mohm or variable mod.
Is the base voltage of the NB 1.7v? So with a 1M pot and 1M resistor, will turning the pot all the way down give me just about stock voltage? I don't want to be stuck with a high voltage forever......gotta turn the fans down once and a while.
I just set up a new cooling system. current temps are: 19 mobo, 28 cpu (stock everything). The smartfan 2 on my heatsink is at 3300rpm, out of a possible 4800. I'm not done yet though, I still have a 120mm fan (115cfm) to put in the side when I get a chance. But its pretty loud.
One more thing: I have the vantec nexus fan controller. Its nice, but I wish I could turn the fans off (namely the tornado that I have as a front intake). Think I could take a little non-conductive paint and put it on the right part of the knob (pot), and it would cut off the voltage when I turn it to low, therefore turning off the fan? I might try it.
PMM, so what u're saying is to do this:
-----------------------1Mohm +1Mohm VR ------|(ground)
|
|
--200k-
| |
X X
(removed resistor)
Maybe I'll try this, cuz there is no need for the board in this state anyway ;) tell me if i'm right, and i'll get right to it.
erm...... yep :)
Code:1M + 1M to ground
|---\/\/\/-----0
|
|
| 200K
|-\/\/\/\-|
| |
| |
[ ] [ ]
erm...... yep :)
Code:1M + 1M to ground
|---\/\/\/-----0
|
|
| 200K
|-\/\/\/\-|
| |
| |
[ ] [ ]
erm...... yep :)
Code:1M + 1M to ground
|---\/\/\/-----0
|
|
| 200K
|-\/\/\/\-|
| |
| |
[ ] [ ]
Hi,
i'm new member and i don't understand very well how much mod are necessary on the board for great results, so can anyone reassume all mod in a unique post with a detailed list of material and a little description :p ?
i think it's helpful for all :=)
Thankz and complimentz for all the work!!
ok, I picked up the stuff I think I'll need. I got a crystal orb, and will put it on my nb soon. here is the stuff I got for the vmod:
1M0hm pot
resistor
ground wire
think this stuff should be good? Just want to check before I mess anything up.
http://forum.oc-forums.com/vb/showth...hreadid=167297Quote:
Originally posted by HÂ¥percUbe
Hi,
i'm new member and i don't understand very well how much mod are necessary on the board for great results, so can anyone reassume all mod in a unique post with a detailed list of material and a little description :p ?
i think it's helpful for all :=)
Thankz and complimentz for all the work!!
Thank you very much :=))))Quote:
Can someone give me a link with specific trimmers for Vcore & Vdimm mod? (like this http://www.radioshack.com/product.as...5Fid=271%2D211 )
Hi guys,
well this is the 2nd A7n8x/dl i'm having as i RMAed the 1st one cause i f...ed up with VDD.I took the board today and i started all over again and this time was a success!!!The problem is that with the 1st board and without the VDD mod i was 195 bus with no problems and i could boot to windows up to 211.I had measured the VDD 1.58v.
With the new board and without VDD mod i was stable at 183mhz and could boot to windows up to 188.I measured VDD 1.58v.Well i think this is very strange!!!
After doing VDD mod iam stable at 195 but at 200+ i have problems in 3dmark.VDD 1.74-1.85v.For cooling i have Titan cooper heatsink on NB and the board's heatsink on SB.
I think maybe i need to burn in the board for a few days but i would like to know if you have any suggestions for hitting200+.
THANKS.
MY SPECS:
Asus A7N8X Deluxe Rev 1.04 (Bios 1002)
Athlon 2400+
Thermalright SLK800 with Artic Silver 3
80mm Delta 68.5CFM Fan with Thermaltake Fan Speed Controller
2 x 256MB Samsung CC4 PC3200
Chieftec Dragon DA-01W Full Tower with 5 Sunon 80mm (42CFM) Fans
Chieftec 420W PSU
Win XP Professional + SP1 + ASUS 1.16 Driver Pack
Varsos, change your FSB jumper from 133/166 to 100. It's helped many!
i finally completed the vdd mod, having the voltage set at 1.801. i am able to run at 10.5x215, running seti fine, prime95 and pifast will not run but the fast pi is 44 sec.
my hard drive is actually fun as well as windows. i am running w2k pro with 2 wd se 80 g hdd. doing hd tach i get a max of 47k and min 188, with avg of 40k.
my system seems to be horribly less responsive than it used to be at 200 fsb, even at 205-206 it seems less responsive.
anyone know anything? :( :confused:
Utherwun, I think you have a severe stability problem due to either memory (speed, timings or simply not enough voltage) and/or chipset vdd mod itself (heve you properly measured the voltage ?? otherwise crank it up ! :D) Mine had similar behaviour when pushed too far and usually crashed the disk/OS pretty quickly. Try swapping memory modules as well.
FYI: I'm able to run the following (stable in 3DMark03) speeds with the VR turned to max (ie: 1MOhm + 0MOhm on VR):
215Mhz 7-3-3-2 (1xCMX256A-3200C2) in slots MM-o @ 3.1v Vddr(o is empty DIMM socket, leftmost is next to Northbridge)
218Mhz 7-3-3-2 (2xCMX256A-3500C2) in slots MM-o
220Mhz 6-3-3-2 (1xCMX256A-3200C2) in slot Mo-o
223Mhz 6-3-3-2 (1xCMX256A-3500C2) in slot Mo-o
Misc notes:
Tried with 512Mb - PC3500 stick and got no better than 215, two sticks is always more difficult to keep stable but still worth a try. Dual DDR means havoc on my board so, I've gone without....
FSB 233 is the maximum I can boot into windows with this setup.
Keep trying !!!! :p
the thing is, isnt doesnt crash windows. just seems horribly unresponsive.
i know i probably got my memory timings too tight @ 5-2-2-2. would loosing the timings cut drastically into the performance. right now i have about 3350 bandwidth in sandra and im happy with that, i love it actually, that is what ive been looking for. now my problem is keeping it stable.
my mem is at 2.8, core at 1.80, and agp at 1.6.
water cooling is my next option... i think.
any other information you would need for dianosis?? :stick:
HI :)Quote:
Originally posted by utherwun
the thing is, isnt doesnt crash windows. just seems horribly unresponsive.
i know i probably got my memory timings too tight @ 5-2-2-2. would loosing the timings cut drastically into the performance. right now i have about 3350 bandwidth in sandra and im happy with that, i love it actually, that is what ive been looking for. now my problem is keeping it stable.
my mem is at 2.8, core at 1.80, and agp at 1.6.
water cooling is my next option... i think.
any other information you would need for dianosis?? :stick:
the system is stable @215Mhz?
What do you intend with: "just seems horribly unresponsive"?
when i have multiple windows open and try to minize one or open up multiple windows at once, the system struggles to open them up and it can take 30 seconds or so. may seem a lil anal but it didnt do this before.
one thing i was thinking about, and someone tell me if this could be, but i put my pelt on the system with only three screws since one was stripped to see if it would work. well it was a far cry from working as it did a thermal shutdown at 90C!!!! could this have damaged the processor to make it run like this or would it be more of the overclock causing this. i looked at the processor and there is not visible damage to the outside but who knows about the inside....
Utherwun,
regarding your unresponsiveness issue, maybe you should try to lower your timings: start with 7-4-4-2 and go up while testing... you *will* loose some speed by doing this but not that much.
Try cranking up your chipset voltage to see if it helps. If you don't have the DDR vmod: do it ! :D This might also help.
Now regarding your pelt issue: you really should tighten your cooling system properly, otherwise it's not going to make contact (I'm of course assuming thermal interface is properly applier using a good compound)
Also, I assume your TEC is powerful enough for the CPU... ;)