Very nice. Anyone with a 4870X2 checked whether OVP kicks in above 1,37V (as we know it does), or if the plugin can display that? Unfortunately I am away from my Mainrig right now.
Very nice. Anyone with a 4870X2 checked whether OVP kicks in above 1,37V (as we know it does), or if the plugin can display that? Unfortunately I am away from my Mainrig right now.
DFI LT-X48-T2R UT CDC24 Bios | Q9550 E0 | G.Skill DDR2-1066 PK 2x2GB |
Geforce GTX 280 729/1566/2698 | Corsair HX1000 | Stacker 832 | Dell 3008WFP
Monitoring the current and power draw of the card/computer, we already know that it won't give more than 1,37V to the 4870X2's GPU core by software. So it just doesn't display it right, much like w/o the plugin.
wow man good work
No it does
It's straight reference,hell all GTX260/280/285 and 295 for sale are reference design,and it works with AwardFabrik and that other guy voltage vmod,just not with this plugin but hey I got up from 712/1512/1100 to 734/1566/1100 with 1,08V(0,02V over default)
Last edited by DMH; 02-06-2009 at 06:11 PM.
DFI LT-X48-T2R UT CDC24 Bios | Q9550 E0 | G.Skill DDR2-1066 PK 2x2GB |
Geforce GTX 280 729/1566/2698 | Corsair HX1000 | Stacker 832 | Dell 3008WFP
It doesn't work on my 4870
Dam, prob cause its a non reference PCB
Tested on my BFG GTX 295 in Vista X64, working fine
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CPU Loop: MCP655 > HK 3.0 LT > ST 320 (3x Scythe G's) > ST Res >Pump
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Working great on Windows 7 x64 with EVGA GTX 295, THANKS!!!!
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thank you for this tool
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I wonder if anyone will ever see "1" appear as a OCP -state...
But atleast it is absolutely certain OVP will never, ever trigger and give "1" when using this plugin. Really, OVP monitoring has no purpose at all.
You were not supposed to see this.
i7 920, Evga X58 SLI, CF 4870/ 5870, 3x2GB Crucial
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Intel G2 SSD, WD 640Gb, G5, G15, NEC 2470 WVX, 970P...
mikeyakame
have seen posts here were people are able to use the plugin successfully on w7 x64!
anyway, in your RivaTuner installdirectory, where you copied the plugin into \PlugIns\Monitoring there is a logfile VT1165.log.
close Hardware monitoring window, delete the logfile and restart Hardware monitoring again. try to change the voltage to get some information into the logfile, upload the logfile somewhere and post the link. pls don't post the logfile here directly as this would put a lot of mess in this thread! anyway, would be interesting to figure out whats going on there.
i also added a tread on my forum, you can upload the logfile to this thread so i have all the information in one place.
but as its a forum, you have to register in order to be able to upload ...
Cold Fussion
pls do the same and get me a logfile!
M-XXXX
looks like you are using the wrong plugin! look on the source setup window (the lowest window on your screenshot), you can find the name of the plugin at the top besides Data Provider. you are using the VT1103 plugin!
click on [Setup] in the graph window and then on the [Plugins] button. here you can uncheck VT1103.dll and check VT1165.dll instead!
Last edited by fgw; 02-07-2009 at 04:22 AM.
Processor: Intel Core i7 990X
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Case: Chieftec BH-01B-B-B
regarding the discussion on OVP and OCP:
first of all, i still dont have a datasheet for the vt1165! all my knowledge is based on the information in various forums, mainly the posts from Unwinder and some private conversation with Unwinder.
so my understanding of this is:
OVP is triggered as soon as the output voltage exceeds the programmed voltage plus a certain, via resistors, predefined margin.
if its working this way, we will never see OVP kicking in when using the registers to change output voltage, as output voltage can hardly exceed the voltage we set by registers.
e.g. if the register defines 1.15V and the margin is set to 0.2V then OVP would kick in when output voltage exceeds 1.35V
if we now change the register to a reflect voltage of 1.30V and add our margin of 0.2V we get also a changed value of 1.50V where OVP would kick in! so, no matter what voltage is defined via the register, OVP would always kick in if output voltage exceeds this value by the margin, which simply would not happen.
this is totally different when using a hard mod: here the voltage set by register remains unchanged, thus the base for OVP. a hardmod forces the voltage increase by changing some resistors externally, thus output voltage plus margin is likely to exceed the unchanged predefined voltage in the register.
so using the example above, no matter what output voltage you set via a hardmod, the OVP reference level remains unchanged at 1.35V (1.15V + 0.2V) and thus let OVP kick in as soon as output voltage exceeds 1.35V.
OCP is a different story, as there is no register involved here. OCP will kick in when a certain current draw is exceeded! i have no idea at what point this will be. if my plugin works correctly we probably will see this sooner or later.
implementing OVP and OCP status in the plugin was no big deal and was, the above said in mind, targeted to hard mods mainly, tough OCP might be seen even when soft modding.
Last edited by fgw; 02-07-2009 at 04:18 AM.
Processor: Intel Core i7 990X
Motherboard: ASUS Rampage III Extreme
Memory: Corsair CMT6GX3M3A2000C8
Video Card: MSI N680GTX Lightning
Power Supply: Seasonic S12 650W
Case: Chieftec BH-01B-B-B
my vrm's die at anythign over stock on 4870 lols they go like 114 degrees then CRASH BANG WALLOP
"Cast off your fear. Look forward. Never stand still, retreat and you will age. Hesitate and you will die. SHOUT! My name is…"
//James
Tnx, its workingM-XXXX
looks like you are using the wrong plugin! look on the source setup window (the lowest window on your screenshot), you can find the name of the plugin at the top besides Data Provider. you are using the VT1103 plugin!
click on [Setup] in the graph window and then on the [Plugins] button. here you can uncheck VT1103.dll and check VT1165.dll instead!
Botton line:
Sapphire 4870 (one RED and one BLUE pcb) on vista 64bit, works like a charm
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Water cooling, Single stage cooling, Bench table
Intel G2 SSD, WD 640Gb, G5, G15, NEC 2470 WVX, 970P...
fgw,
Shall do that mate and get back to you.
I just finished reading and re-reading the Intersil ISL6327CRZ multiphase closed-loop feedback and compensation PWM Voltage Reg datasheet, the VR used by NV in the die shrink G200 reference cards, GTX 260 55nm and GTX 285 55nm.
Seems NV screwed you guys over with VR cost cutting this time around, mind you the IC itself only costs $5usd or so.
It's a VR designed with cost savings and affordability in mind so it lacks any kind of external low-pin count bus interface accessibility and relies on the pcb designer to set up all the necessary operational values in design and testing phase. There are 8 VID pins which when pulled up the base VID is read by which pins are 0 or 1 and converted to digital signal by DAC. '
Voltage adjustment is done through current offset via the OFS pin, which is polarity dependant for negative or positive offset, switch to Vss (gnd) for neg, switch to Vcc (vin) for pos. Offset is configured through external resistors connected between the DAC and REF pins, the impedance dynamically controls the current which in turn determines the Vout (voltage out).
Long story short, unless NV have some kind of low pin count programmable interface to adjust a pull up or pull down resistor connected between DAC digital VID signal pin and REF voltage reference pin there is absolutely NO CHANCE AT ALL to control Voltage Adjustments via software on either the GTX 260 55nm or GTX 285 55nm. The only way would be to change the resistor between DAC and REF pins, to give a greater current offset to drive Voltage out higher.
If EVGA is saying it is possible on their cards, short of physical changes to the NV reference cards to add this basic functionality I can't see how it is possible at all. I read over the datasheet a good 4 or 5 times just to make sure I completely understood the electrical design and don't see any way to do it.
Last edited by mikeyakame; 02-07-2009 at 04:53 AM.
DFI LT-X48-T2R UT CDC24 Bios | Q9550 E0 | G.Skill DDR2-1066 PK 2x2GB |
Geforce GTX 280 729/1566/2698 | Corsair HX1000 | Stacker 832 | Dell 3008WFP
fgw,
My point about OCP was that if it triggers, Rivatuner will not catch it because once OCP activates, the PWM is immediately clamped or reversed to a safe mode -> crash -> soft reset.
You were not supposed to see this.
OVP should have 2 scenarios for taking place.
1) If Vout reaches OVP Cut Off VID, which is probably between 1.5-2.0v.
2) If Vout - VID > Vout_overshoot offset.
If only controlling VID through I2C bus registers then scenario 1 OVP is the only case one will encounter.
If controlling VID through resistor impedance for hardward mod, scenario 2 OVP is likely if the resistance pushes Vout past overshoot offset from programmed VID.
If using combination of hardware trickery mod and software programmed VID, then scenario 2 should be avoidable if you can determine the offset allowed for Vovershoot.
DFI LT-X48-T2R UT CDC24 Bios | Q9550 E0 | G.Skill DDR2-1066 PK 2x2GB |
Geforce GTX 280 729/1566/2698 | Corsair HX1000 | Stacker 832 | Dell 3008WFP
How do you know an OVP of this type exists?Originally Posted by mikeyakame
You were not supposed to see this.
Well I've seen similar in other VR datasheets, and like anything that regulates voltage and current there is always a safety cut off point incase of malfunction. It would be in this case either an OCP or OVP hard set value just incase something goes terribly wrong and Vout overshoots uncontrollably, a hard OVP limit controlled by something like a closed loop slew rate feedback circuit would catch this hopefully before electricals get fried.
DFI LT-X48-T2R UT CDC24 Bios | Q9550 E0 | G.Skill DDR2-1066 PK 2x2GB |
Geforce GTX 280 729/1566/2698 | Corsair HX1000 | Stacker 832 | Dell 3008WFP
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