MCP-T get very hot without heatsink..
Southbridge have mouting holles?
MCP-T get very hot without heatsink..
Southbridge have mouting holles?
Anyone having cold boot problems on this board when the Vcore and Vdimm are up? The 12v line dropped on my Antec 412 to 11.04v...So I put a Fortron 400 on it and that stopped some of the black screen problems (now 11.06) but when it's cold I have to clear the CMOS and save the optimized defaults and slowly up the vcore a couple of quarters of a tenths a few times from 1.6 (default) 1.8v and then I can do anything I want in the bios, (N24IDC10).
Very Strange...:confused:
Edit: Typo...11.6v for the Fortron...
Upun further tests my max stable vcore is now 1.90v (tested with 4h of prime95). So cooling better SB made me gain 0.05v... I'm gonna try mosfet cooling now.
Ok,
I'll mess with the SB and take the pad off, lap and see if that helps. What type of voltage are you getting on the 12v and 5v line at 1.90v?
Remember, use a multimeter, don't go by the daft readings the motherboard gives you ;)
Yeah, I know the boards readings can have a tendency to lie…:)
~12.25v ~5.05v ~3.35vQuote:
Originally posted by vector7
Ok,
I'll mess with the SB and take the pad off, lap and see if that helps. What type of voltage are you getting on the 12v and 5v line at 1.90v?
Read from mosfets with DMM with prime95 running and vcore set to 1.95v.
What PSU are you using?
Antec PP-412XFQuote:
Originally posted by EnJoY
What PSU are you using?
Good news from my last tests. Cooling down the mosfets HAS indeed effect, as I'm now no longer experiencing vcore issues (tried usual prime under 1.95v and it's fine for two hours then I stopped it, I'm gonna check 2v now) and above all my board seems now to handle vdd higher than 1.7v, which is a great point for my future plans :) This board definitely needs vmodding, I need vcore up to 2.1v, higher vdimm (reading from mosfets says 3.20v when set 3.30v in bios) and hopefully vdd of 2v and above.
Was really wondering about that. Thanks.
When I try my new board I'll leave the side of my case off and blow some air at areas I will later heatsink anyways once I decide whether to keep the board. Going to be tempting to put some sort of heatsinks on right away though. Come to think of it, any details on type of cooling you employed?
Very good news iolao :D You just convinced me to get this board ;) Keep up the good work mate.
All the night sandra burnin (memory) at 2v and no problems. It seems at least I solved vcore issue :D
U rock :D what kind of cooling did u use for the mosfets?Heatsinks+Fan blowing above them?
heatsinks and fans everywhere :D It's a bit disappointing as I would expect a board to be ready as it comes, but that's ok, for now the most important thing is to have solved my voltage issues (vcore and vdd).Quote:
Originally posted by LoWRiDeR
U rock :D what kind of cooling did u use for the mosfets?Heatsinks+Fan blowing above them?
Couple n00b questions....
@Iolao... the mosfets on this board are really small, what kind of heatsinks did you use & did you cut them down to size?
@Anybody... Im gonna need better cooling on NB & SB but it also seems Im gonna need to lap these chips... can somebody point me to a LAPPING GUIDE? :D
Thanx!!
I had several little hs and used them, otherwise yes you can cut larger ones to be the dimensions you like. I have to point it out that I'm cooling the BACK of the mosfets as it's there that heat is spreading; to fit them you need thermal pad (be sure it's not elecctrically conductive or you're gonna short the board).Quote:
Originally posted by clockedOut
Couple n00b questions....
@Iolao... the mosfets on this board are really small, what kind of heatsinks did you use & did you cut them down to size?
@Anybody... Im gonna need better cooling on NB & SB but it also seems Im gonna need to lap these chips... can somebody point me to a LAPPING GUIDE? :D
Thanx!!
[LAPPING]
this is for abit nf7-s but obviously it's the same:
http://www.motherboardfaqs.com/article.php?10.255
Thanx Iolao!!!
Got any pics of your cooling mods?
Hi all.
I already wondered before if cooling the tiny mosfets would help. But I am a little frightened when mounting the prom and ripping off one hs 2gether with one of these tinies ;)
But if it resolves my vcore issues I'll take my chances...
All I can conclude is: Iolao, you are the pioneer in the mosfet issue ;)
:toast:
Hey guys, thank you all! :D However being more realistic there's no magical trick, I suppose not everyone is going to gain by cooling the mosfets; since the boards are different one from another as it was for abit nf7-s, cooling mosfets can be ONE way, not THE way to go, it's all about how the mobo reacts, hope it helps. Apart from that i'm still disappointed with a mobo manufacturer that claims "this motherboard is for overclocking" and then you discover how poor is voltage circuitry. Just to make an example: my psu rails are really high measured from molex (that tells you what voltages the psu is giving actually), but reading from mosfets on the board (that tells you instead how the mobo efficiently uses the rails) keeps having a HUGE difference. The final word is that if you have a bad or average psu you're going to sit down at low fsb or low vcore. That's why I'm looking for a 5v mod directly on the mosfets: as power circuitry is holding me back I would juice mosfets directly from psu and that *should* translate in the possibility to run high vcore/high vdimm/ high fsb in the same time. It's all upon hypothetical base, but hey I need to first realize and then act consequently :)
I don't have any camera, sorry. However for all you guys going to put hs on the back, be very careful not to directly touch the back of the mobo, a thermal tap is necessary definitely.Quote:
Originally posted by clockedOut
Thanx Iolao!!!
Got any pics of your cooling mods?
Im guessing heatsinks on the back of the mobo is not gonna work when putting it in a case.
:) ... atleast none of the heatsinks I have seen.
I have all the stuff on a senfu table. ;)Quote:
Originally posted by clockedOut
Im guessing heatsinks on the back of the mobo is not gonna work when putting it in a case.
:) ... atleast none of the heatsinks I have seen.
who has the bloody infinity's in stock!?!?!?!?!?!
WOW! Good thing I ordered yesterday. they jacked the price $4 and they dont have it again. Trying to get as early an Nb as possible. Seems they had some stock or something. Less problems with BH5 than AN7.
edit: they=newegg