Sure hope those are good caps, would be a nice job else replacing them 
Mobo is upcoming P55 based Asus Maximus III
Mobo is upcoming P55 based Asus Maximus III
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"The one who says it cannot be done should never interrupt the one who is doing it." -
Re: Got VCore?
what a massive array of solid caps!days are so short when you actually do something.. -
Re: Got VCore?
Very Nice.
Per Hansson what are those black components between caps and SO8 devices?
Ciao
Gianni"In the confrontation between the stream and the rock, the stream always wins...Not through strength, but through persistence."
H. J. BrownComment
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Re: Got VCore?
those are shielded inductors.
16 phase? wtf? isn't that really inefficient?
although i heard gigabyte has introduced a 24 phase VRM.."Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. MenckenComment
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Re: Got VCore?
Break out the liquid nitrogen and liquid helium...
because that's what this board is for.A man convinced against his will is of the same opinion still.Comment
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Re: Got VCore?
More than 8 phases makes the V-core much quieter this is the main reason for smoothest Vcc using 3 phase mains on many large computer mainframes.
Same with 3 phase star toplogy using diode arrays in the vehicle alternators, primarily to keep whine to a minimum on radio and improve ignition quality and easy on battery.
Cheers, WizardLast edited by Wizard; 06-16-2009, 04:59 PM.Comment
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Re: Got VCore?
Thanks kikkoman.
Gianni"In the confrontation between the stream and the rock, the stream always wins...Not through strength, but through persistence."
H. J. BrownComment
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Hi, Would appreciate some help.
I have an Apple Late 2013 15" A1398 MacBook Pro with Logic Board 820-3662.
Get charger light but no fan spin or chime. No liquid damage.
Found PPBUS and VCORE both shorted to ground. Other rails were ok.
Removed VCORE MOSFETS U7310, U7320 and U7330. Found U7330 was in fact shorted.
With the 3 MOSFETS removed, get PPBUS and fan spin. VCORE is still hard shorted to ground (0 ohms).
Attempted voltage insertion on VCORE to locate short using bench supply set at 1.0 VDC and 4.95 Amps (max current for my... -
Hi, have a HP workstation Z2 Mini 4G for repair with CPU vcore missing.
The resistance at the output of CPU vcore coils, is less than one ohm so I think CPU could be damaged, but no mosfet are damaged.
It mounts an i7 8th gen, and have only i5 7th gen for test, but I think it is not compatible.
Without CPU in the socket there is no short, but there is no vcore voltag, and it emits a beep like no detecting ram.
The controller chip for cpu vcore is a MP2949A, and has no enable voltage at pin 37.
I wonder which circuit generates this enable... -
Hello, this is my first post, English is not my native language but I hope you understand me. I recently got a 580 that didn't turn on the typical short mosfet, as I didn't know exactly which one was short, I unsoldered them until I got the bad one out, I was able to remove the short and identify the bad mosfet, the gpu gives video again! but it has a problem that completely turns off vcore at random times or if I try to put a load on the gpu vcore drops to 0 I don't have much idea why because I don't know much about sapphire, any advice on where I could start looking or what problem it could... -
Hi,
My laptop went dead and after checking ,the main 19 volt power rail was shorted. After some checks i could identify that a high side vcore mosfet was shorted.
I replaced the mosfet and now the white powerled is present , fans start spinning but capslock shows the famous 5 long and 3 short code.
I checked the vcore voltages after replacement and i get for all 1.01 V so means for me that the driver is still working of the replaced shorted mosfet. On the Nvidia i measure around 0.8 V after the mosfets.
I did voltage injection on the cpu with 0.7V and i have a current... -
Hi,
Recently I got an Epox EP-85 MVP3C-M board from scrap. After fixing the broken caps I powered it on without CPU and the jumpers set to 60Mhz FSB and 2x multiplier.
Sadly, Vcc3 was stuck at 3.54v regardless of jumpers. Vcc2 (Vi/o I think) was also the same voltage.
So, I've returned to the original configuration I got the board in - 100Mhz FSB and 4x multiplier. Voltages haven't changed at all.
What I've tried so far:
replace the original N-MOSFETs with beefier 60V ones for testing
Resolder the resistors near the Vcore Jumper block
Short Vcore...05-25-2025, 01:46 AM
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