Does anybody know what the current draw distribution is for a Geforce FX 5900 (or an FX 5800) accross the 3.3v , 12v and 5v ( if used) rails when under load ? I seem to recall somebody testing that and comparing it with an ATI card back in the day, but I cannot find that reference anymore .
darry wrote on 2020-05-02, 22:26:Does anybody know what the current draw distribution is for a Geforce FX 5900 (or an FX 5800) accross the 3.3v , 12v and 5v ( if used) rails when under load ? I seem to recall somebody testing that and comparing it with an ATI card back in the day, but I cannot find that reference anymore .
The 5900 AGP card uses a Molex power connector (same as a IDE HD power connector) with 5 and 12v. According to www.techpowerup.com it draws a max of 59watts. If all is off the 5v rail that would be ~12amps, if off the 12v rail that would be ~5amps.
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
Horun wrote on 2020-05-03, 00:41:darry wrote on 2020-05-02, 22:26:Does anybody know what the current draw distribution is for a Geforce FX 5900 (or an FX 5800) accross the 3.3v , 12v and 5v ( if used) rails when under load ? I seem to recall somebody testing that and comparing it with an ATI card back in the day, but I cannot find that reference anymore .
The 5900 AGP card uses a Molex power connector (same as a IDE HD power connector) with 5 and 12v. According to www.techpowerup.com it draws a max of 59watts. If all is off the 5v rail that would be ~12amps, if off the 12v rail that would be ~5amps.
Thank you. I know the card draws a max of 59 watts . I was hoping for more detailed info about power draw per rail . I found the site that I remembered from 15 years ago. Sadly, it is now offline and Internet archive does note have a legible copy of the graph I was hoping to see . I know that this not for the plain FX 5900, but it would still give an idea . Maybe someone has saved a copy .
https://web.archive.org/web/20110129051517/ht … nv-power_6.html
EDIT: Found a russian translation .
5900U :
https://st.overclockers.ru/images/lab/2004/08 … 00u_table-b.gif
5950:
https://st.overclockers.ru/images/lab/2004/08 … 50u_table-b.gif
darry wrote on 2020-05-03, 02:10:https://web.archive.org/web/20110129051517/ht … nv-power_6.html […]
https://web.archive.org/web/20110129051517/ht … nv-power_6.html
EDIT: Found a russian translation .
5900U :
https://st.overclockers.ru/images/lab/2004/08 … 00u_table-b.gif5950:
https://st.overclockers.ru/images/lab/2004/08 … 50u_table-b.gif
Ahh Ok my russian is not the best but looks like it closely splits the Amps draw off both 5v and 12v Molex rails, 2.5A and 3.5A plus a minimal off the AGP slot supplies. That is actually a Good thing. Most PSU made back then had good balanced 3.3v 5v and 12v rails. Would think any that had a combined 130watt+ on the 3.3/5v plus 150w on the 12v would work OK as long as you were not pushing other things like a bad-ass socket A.
Edit +added: can you find one for the GF 7800 AGP cards ? Have a BFG 7800 GS OC and always wondered what power it really takes
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
Horun wrote on 2020-05-03, 02:40:darry wrote on 2020-05-03, 02:10:https://web.archive.org/web/20110129051517/ht … nv-power_6.html […]
https://web.archive.org/web/20110129051517/ht … nv-power_6.html
EDIT: Found a russian translation .
5900U :
https://st.overclockers.ru/images/lab/2004/08 … 00u_table-b.gif5950:
https://st.overclockers.ru/images/lab/2004/08 … 50u_table-b.gifAhh Ok my russian is not the best but looks like it closely splits the Amps draw off both 5v and 12v Molex rails, 2.5A and 3.5A plus a minimal off the AGP slot supplies. That is actually a Good thing. Most PSU made back then had good 5v and 12v rails. Would think any that had a combined 130watt+ would work OK as long as you were not pushing other things like a bad-ass socket A.
The card I have is an MSI FX 5900 (non ultra) with 128MB . I can only imagine its power delivery system is similar to that of the ultra .
The reason I was looking for this info is because I plan on changing PSUs from a 15-year old Enermax EG465P-VE with 35A each on 3.3v and 5v rails and 200W max combined to a new Corsair RM850x with 25A each on the 3.3v and 5v rails and 150W max combined . I do not believe I will have any issues as the FX 5900 (at load) is the heaviest power drain on the system . CPU TDP should be about 32.2 W according to Intel , Voodoo 3 should be about 15W . The rest should not be very demanding .
The machine specs are as follows :
- Pentium 3 Tualatin-S @1400MHz with 512K L2 cache
- Ipox 3ETI23 industrial motherboard (815EP-based with 3 ISA slots and onboard Fast Ethernet)
- 512 MB (2x256) of PC133 SDRAM
- MSI AGP Nvidia FX 5900 128MB
- 3Dfx Voodoo 3 3000 (PCI)
- generic SIL3114 SATA controller
- 1TB Seagate 7200RPM SATA drive (with 4 partitions, each smaller than 127GB and rest unpartionned)
- 500MB Samsung 860EVO SSD (soon)
- 5 and 1/4" floppy drive
- 3 and 1/2" floppy drive
- LG GSA-4167 DVD-ROM drive
- Gravis Ultrasound Ultralsound 3.73 with 1 MB RAM
- Creative AWE64 Value with 28MB RAM (thanks to SIMMCONN revival)
- Mediatrix Audiotrix 3DXG (OPL3SA) with Monster Midi 4MB GS rev. B daughterboard (for SB Pro compatibility and authentic embedded OPL3)
- 3 x 120MM fans
I remember those pages! Sorry to see that the images seem to have been lost though I may have downloaded them at some point.
If I remember, I will see if I dan dig them up and upload them somewhere. I don't have good access to my backup files right now though and I have other things that need to be dealt with before.
Horun wrote on 2020-05-03, 02:40:darry wrote on 2020-05-03, 02:10:https://web.archive.org/web/20110129051517/ht … nv-power_6.html […]
https://web.archive.org/web/20110129051517/ht … nv-power_6.html
EDIT: Found a russian translation .
5900U :
https://st.overclockers.ru/images/lab/2004/08 … 00u_table-b.gif5950:
https://st.overclockers.ru/images/lab/2004/08 … 50u_table-b.gifAhh Ok my russian is not the best but looks like it closely splits the Amps draw off both 5v and 12v Molex rails, 2.5A and 3.5A plus a minimal off the AGP slot supplies. That is actually a Good thing. Most PSU made back then had good balanced 3.3v 5v and 12v rails. Would think any that had a combined 130watt+ on the 3.3/5v plus 150w on the 12v would work OK as long as you were not pushing other things like a bad-ass socket A.
Edit +added: can you find one for the GF 7800 AGP cards ? Have a BFG 7800 GS OC and always wondered what power it really takes
Iirc GF FX was mostly 5v heavy and GF6 (don't quote me on this though) and GF7 were mostly 12v.
I don't remember as well about Ati but I think the X800 was mostly 12v but not sure about Radeon 9x00 series.
It's been years since I last saw those images. I did try to google them and I did write about them earlier but at first glance I never seem to have uploaded these images to somewhere else.
I don't remember the power rails but these should be reasonably re-calculated once the total power draw and 5v/12v rail preferences are known (course better if those pics get dug up).
Hey look at what I found! 😁
Re: I need advice for a 3DFX Config
Apparently I may have uploaded ALL of those images a couple years ago!
I'll reupload them here for everyones convenience 😀
Great ! Thank you. Appears a 7800GS OC would draw about same as a 7600GT or less than a standard 7900GT but more than a 7600GS and mostly all off the 12v. Good to know.
Hate posting a reply and then have to edit it because it made no sense 😁 First computer was an IBM 3270 workstation with CGA monitor. Stuff: https://archive.org/details/@horun
If we could get permission from whoever owned Xbit Labs at the time, maybe that data could find a nice home on the vogons wiki .
darry wrote on 2020-07-10, 23:54:If we could get permission from whoever owned Xbit Labs at the time, maybe that data could find a nice home on the vogons wiki .
Would be cool, but can you also find the firing squad and vrzone stuff
darry wrote on 2020-07-10, 23:54:If we could get permission from whoever owned Xbit Labs at the time, maybe that data could find a nice home on the vogons wiki .
This is what I ended up doing with the VIA C3 compatibility list which I had pulled from the VIA website before VIA removed the list from there, but I'm unsure how this would work.
Personally I think it would be fine as it would at least make the data available for the masses again, for the greater good 😜
candle_86 wrote on 2020-07-11, 00:19:darry wrote on 2020-07-10, 23:54:If we could get permission from whoever owned Xbit Labs at the time, maybe that data could find a nice home on the vogons wiki .
Would be cool, but can you also find the firing squad and vrzone stuff
What did these 2 produce exactly?
Tetrium wrote on 2020-07-11, 19:51:candle_86 wrote on 2020-07-11, 00:19:darry wrote on 2020-07-10, 23:54:If we could get permission from whoever owned Xbit Labs at the time, maybe that data could find a nice home on the vogons wiki .
Would be cool, but can you also find the firing squad and vrzone stuff
What did these 2 produce exactly?
both did alot of work with PLL's and voltage mod information, very indepth information that is sadly all gone now
