Dell Upgrade PSU

Forum CPU & Components : Power Supplies, PC Cases & Case Mods - Dell Upgrade PSU

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I have just bought a dell XPS 430. It came with a ATI radeon HD 3870 x2 and i have bought another one as a upgrade so i can crossfire them. One problem the PSU is only a 425 watt and ATI recomend at least 550 watt. Dell dont do a bigger PSU. Anyone know a 800 watt PSU that will fit in my pc.

PC Spac::
Chip
PREMIUM - IntelĀ® Core 2 Quad Processor Q9550 (2.83GHz, 1333MHz, 12MB cache)

Memory
8192MB 1067 MHz Dual Channel DDR3 SDRAM [4x2048]

Hard Drive
2TB Dual Hard Drive Raid 0 Stripe (2x1TB - 7200rpm)

Video Card
Graphics 1GB ATI Radeon 3870 X2 graphics card
(Got a second card cant fit it GRRRRRRR)

Optical Devices
16X DVD+/-RW (Read/Write DVD, CD)
19-IN-1 MEDIA CARD READER

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I have 2x TPQ 1000w, can't go wrong with Antec.

http://www.newegg.com/Product/Prod [...] 6817371009


Message edited by starams5 on 05-28-2009 at 03:13:47 PM
Reply to starams5

No need for an 800 watt psu, you can't Crossfire on that machine.

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 & 2x1 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to Delluser1

- 0 +

yeah delluser1 is right. that computer only has one pci-e x16 slot.

------------------------------ ECS A780GM-A, Phenom II x3 710, 4GB Corsair @800Mhz, HIS Radeon 4850, Seagate 7200.11 500GB, Auzentech X-Plosion 7.1 Cinema, LiteOn DL-DVD w/Lightscribe, ASUS TA-863, OCZ StealthXStream 500W, Samsung Syncmaster T240, Windows 7 Ultimate x64
Reply to Nik_I
- 0 +

Definitely can't CF on that Dell, and you can upgrade to a standard ATX PSU, but you certainly won't need 800W.

Reply to AKM880

I have a question for you guys and it's just question, I'm not suggesting anything since I'm not sure of the answer in this case. He has a PCI Express x8 slot as well. Could he CF with that? I understand that he will lose his PCI Express x16 bandwidth and be reduced to PCI Express x8 bandwidth in CF. Would this be possible? Or will it still not work if the board lacks CF support?

Note: All of the boards are the same, some have different CPU's.
http://reviews.cnet.com/desktops/d [...] mncol;rnav


Message edited by starams5 on 05-29-2009 at 01:42:35 AM
Reply to starams5

A PCIE x16 video card won't fit in a PCIE x8 slot

------------------------------ q9650 @ 4.050 | Asus Rampage Formula | 2x2 & 2x1 Corsair Dominators | WD Black 640 x2
EVGA GTX260 Core216 @ 686/1479/1103 | Antec TPN 750

 

Reply to Delluser1

Thanks a bunch DellUser1 for straightening my wires back out. If I would have referred to my notes I would't have asked that silly question, you're the man.

PCIe x1 card in a PCIe x16 slot will run at PCIe x1 speeds

PCIe x16 card in a PCIe x16 slot will run at PCIe x16 speed.

PCIe cards are all backwards compatible, as in a x1,x2,x4,x8 cards will all work in a PCIe x16 slot

x1,x2,x4 will all work in a PCIe x8/x16 slot

x1,x2 will all work in a PCIe x4/x8/x16 slot

x1 will all work in a PCIe x2/x4/x8/x16 slot

A PCIe x16 card will not work in a slot smaller then the physical card, some motherboards will state however they have 2 or 3 x PCIe x16 slots, BUT one or more may only run at x8 speeds, but the physical slot is the same size as x16.


Message edited by starams5 on 05-29-2009 at 02:13:46 AM
Reply to starams5

Hi,

I have an XPS 420 too and have a 3870 X2 installed (big mistake! - both going with Dell and AMD).

I was ready to upgrade to a BFG 285 GTX when i noticed this. Aren't Dell breaking some kind of regulation by only putting a 425 Watt PSU in when AMD recommend 550 Watt ( http://www.amd.com/us/products/des [...] ments.aspx ). This seems like a real swinle. I feel like i have been subject to a con

Reply to newyorkdolluk
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