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Venkat_Raman
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April 30th, 2018 00:00
XPS 8700, Compatible PSU?
Hello All,
Can someone please help me with the all compatible PSU's for my Dell XPS 8700.
Appreciate it.
Regards,
Venkat.
7083
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Posted July 29th, 2019 03:00
Hi Speedstep,
My AC460EM-00 PSU is history, and they are almost impossible to find so I'm looking for a replacement. The EVGA 700B you mention is also getting obsolete it seems, so I wonder if a newer EVGA 700BR also does the trick?
Cheers
Max
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Posted July 29th, 2019 03:00
he told you it was light on the 2 low voltage rails why not just buy the correct supply https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=AC460EM-00+&_sacat=0 impossible is NOT true nor almost not true at all, but is true at BestBuy. https://www.ebay.com/sch/i.html?_from=R40&_trksid=m570.l1313&_nkw=xps+8700+psu&_sacat=0&LH_TitleDesc=0&_osacat=0&_odkw=AC460EM-00+7073
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Posted July 29th, 2019 05:00
AC460EM-00 PSU is history ,460watt fitted out and Dell actual PSU, not 3rd party PSU now.
you now have 3 links to 3 sources of PSU. both dell and not dell.
there is no lack of PSU, not in this world
but sure needs to fit and have the spec on the lower end voltage rails.
the length can be hard to fit, here is nice 160mm long PSU
7075
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Posted July 29th, 2019 05:00
this has the chops if fits, use a ruler first, I can't and dell don't spec that space or extra space. ok?
3.39" x 5.91" x 7.09" (fit)
https://www.newegg.com/thermaltake-toughpower-ps-tpd-0850mpcgus-1-850w/p/N82E16817153205
7067
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Posted July 29th, 2019 07:00
That psu looks too long
PS-TPD-0850MPCGUS-1
Beyond that However its only 130W max combined on 3.3v/5v rails which is a bad sign. 5v @ 25A = 100W 3.3v @ 25A = 82.5 W
Does not say 182.5 W combined on those rails so something is wrong.
Combined power does not match amps listed.
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Posted July 29th, 2019 07:00
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Posted June 4th, 2021 14:00
The power supply in my Dell XPS 8700 went bad ("page fault in nonpaged area" after startup), and I just replaced it with a Corsair RM750x power supply. The RM750x is 160mm in length, whereas the original PSU was 140mm in length. The RM750x fits pretty snugly (be careful not to break the CPU fan connector pins when sliding the PSU in) and has a little more room than in the picture the other user posted of the EVGA Supernova, but I wouldn't go any longer than 160mm. The RM750x is running great so far (super quiet, the fan hasn't even come on yet).
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Posted February 14th, 2024 19:08
@speedstep Thanks for the advice. I agree it was quite a tight fit but not as tight as the ASUS 2080ti that I squeezed in on the other side of the m/b. Still haven't got the case on but the EVGA 750W 80+ Bronze Semi Modular PSU that I got off ebay for £40 does fit and does work.
Sweet :-)
speedstep
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46969 Posts
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Posted April 30th, 2018 04:00
XPS 8300 8500 8700 have specific DIMENSIONS that must be adhered to as well as SPECIFIC power requirements on the 3.3v/5v rails combined being 25Amps on each of those as well as 146+ Watts combined.
That means that specific models even from the same vendor work and others DO NOT WORK AT ALL.
EVGA 750 B1 110-B1-0750-VR works fine BT B2 BQ G2 etc DOES NOT. BQ is made by Andyson while no-one knows who made BT unit, it's probably made by HEC. BT is such a bad unit that EVGA doesn't even list it on their site. There is no point in something Bigger Due to the fact that you CANNOT USE more than 1 card.
So Both Physical Dimensions as well as Power Output combined on the 3.3v/5v Rails works for the B1
https://www.amazon.com/EVGA-SuperNOVA-Modular-Warranty-110-B1-0750-VR/dp/B00K85X23O/
This is what it looks like Fitted into the case. NOTE The TIGHT FIT.
On many other vendors as the 12v power goes up the power on the 3.3V/5V rails max power GOES DOWN to 20A/100W max. However in the case of dell 875w unit the power goes UP to 225w on the 3.3V/5V rails to 30Amps and 225W Combined .