GTX465 SLI on HP Z800

serratedauto · Jul 19, 2012

Hi guys,

I'm new here and I'm having a problem getting SLI enabled on my Z800. I have 2 GTX465 cards and they are recognized by the computer, however, when I boot up and open the nvidia control panel the option to enable SLI is not available. The SLI bridge is installed.

Is there anything special I need to do to get SLI working? I've tried removing and reinstalling the drivers and nvidia software and it didn't seem to help.

Thanks!

Crap Daddy · Jul 19, 2012

Are the cards placed in PCIe x16 x16 or at least in x16 x8?

INSTG8R · Jul 19, 2012

Are they "matching" cards. I know another user on another forum had issues getting SLI going on 2 580's with different RAM amounts(1.5 and 3GB) He ended up having to use this to get his SLI working.
Not saying that is the problem but need a little more info.

mastrdrver · Jul 19, 2012

What chipset does that board us?

I find the Z800 on the HP site, but it lists it as a workstation setup. If it has a higher end Intel chipset, then that maybe why SLI is not working.

serratedauto · Jul 19, 2012

Yes, the cards are placed in the two PCIe x16 slots. For the most part they are matching - the cards are from different manufacturers but they have the same RAM amount (and from what I've read on the nvidia SLI FAQ site, running different manufacturers of the same model should be okay...). The Z800 uses the Intel 5520 chipset.

I know this computer supports SLI because they've been advertising this machine running quadros in SLI, so I would think running a pair of geforces in SLI shouldn't be a problem...

mastrdrver · Jul 20, 2012

Just because it can run Quadros in SLI doesn't mean that the driver will support GeForce cards running in SLI. The driver does a check with the bios to see if the board manufacturer paid the SLI premium.

I don't know if it differentiates from Quadro to Geforce cards though.

serratedauto · Jul 20, 2012

are you talking the nvidia driver or a chipset driver?

mastrdrver · Jul 21, 2012

The nVidia driver looks to make sure the board is on the approved SLI list. If it is not, then SLI is not allowed. There is some check that is added in the BIOS and that is what the driver checks for.

Like I said, HP may have paid for SLI on Quadro cards, but that doesn't mean that the same fee pays for Geforce cards. Though that is just speculation on my part.

Your best bet would be to contact HP and ask them is SLI with GeFroce cards are supported on this system.

newtekie1 · Jul 21, 2012

The 5520 doesn't support SLi with desktop card.

You can try it with HyperSLI, but I'm not sure if HyperSLI is still working, I haven't been keeping up on it lately.

Fatal1ty39 · Jul 27, 2012

a while ago i saw a thread not in english showing hp z800 with two msi gpus in sli but i can't seem to find the link but i have found this on ebay the guy showing gtx590 in sli not sure maybe he is showing how the hp z800 can fit long gpus anyways here is the link
http://www.ebay.com/itm/CUSTOM-HP-Z800-WORKSTATION-2-X5690-HEX-HEXA-CORE-96GB-6-SSD-GTX-580-LGA1366-/230708385581#ht_12129wt_1026

NC37 · Jul 27, 2012

Check the SLI bridge? When I upgraded boards I had to use my old bridge because the one I got with the new board wouldn't work. Dunno why, brand new. Maybe it got fried or is a defective part. Not sure if its a common issue or not with the bridges.

System Name	HP Z800
Processor	Intel Xeon X5560 @2.8 GHz (dual processor)
Motherboard	HP
Cooling	OEM
Memory	6x Hynix PC3-10700 4GB ECC Buffered RAM, 24GB total
Video Card(s)	Dual Nvidia GeForce GTX 465 (SLI)
Storage	Dual RAID0 Western Digital 10K RPM SAS drives
Display(s)	1x Samsung 27" LCD, 1x Samsung 24" LED
Case	HP
Audio Device(s)	Creative Sound Blaster Xi-Fi
Power Supply	1.1KW HP Power Supply
Software	Windows 7 Ultimate 64-bit

System Name	Old Fart / Young Dude
Processor	2500K / 6600K
Motherboard	ASRock P67Extreme4 / Gigabyte GA-Z170-HD3 DDR3
Cooling	CM Hyper TX3 / CM Hyper 212 EVO
Memory	16 GB Kingston HyperX / 16 GB G.Skill Ripjaws X
Video Card(s)	Gigabyte GTX 1050 Ti / INNO3D RTX 2060
Storage	SSD, some WD and lots of Samsungs
Display(s)	BenQ GW2470 / LG UHD 43" TV
Case	Cooler Master CM690 II Advanced / Thermaltake Core v31
Audio Device(s)	Asus Xonar D1/Denon PMA500AE/Wharfedale D 10.1/ FiiO D03K/ JBL LSR 305
Power Supply	Corsair TX650 / Corsair TX650M
Mouse	Steelseries Rival 100 / Rival 110
Keyboard	Sidewinder/ Steelseries Apex 150
Software	Windows 10 / Windows 10 Pro

System Name	Hellbox 5.1(same case new guts)
Processor	Ryzen 7 5800X3D
Motherboard	MSI X570S MAG Torpedo Max
Cooling	TT Kandalf L.C.S.(Water/Air)EK Velocity CPU Block/Noctua EK Quantum DDC Pump/Res
Memory	2x16GB Gskill Trident Neo Z 3600 CL16
Video Card(s)	Powercolor Hellhound 7900XTX
Storage	970 Evo Plus 500GB 2xSamsung 850 Evo 500GB RAID 0 1TB WD Blue Corsair MP600 Core 2TB
Display(s)	Alienware QD-OLED 34” 3440x1440 144hz 10Bit VESA HDR 400
Case	TT Kandalf L.C.S.
Audio Device(s)	Soundblaster ZX/Logitech Z906 5.1
Power Supply	Seasonic TX~’850 Platinum
Mouse	G502 Hero
Keyboard	G19s
VR HMD	Oculus Quest 2
Software	Win 10 Pro x64

System Name	Money Hole
Processor	Core i7 970
Motherboard	Asus P6T6 WS Revolution
Cooling	Noctua UH-D14
Memory	2133Mhz 12GB (3x4GB) Mushkin 998991
Video Card(s)	Sapphire Tri-X OC R9 290X
Storage	Samsung 1TB 850 Evo
Display(s)	3x Acer KG240A 144hz
Case	CM HAF 932
Audio Device(s)	ADI (onboard)
Power Supply	Enermax Revolution 85+ 1050w
Mouse	Logitech G602
Keyboard	Logitech G710+
Software	Windows 10 Professional x64

System Name	HP Z800
Processor	Intel Xeon X5560 @2.8 GHz (dual processor)
Motherboard	HP
Cooling	OEM
Memory	6x Hynix PC3-10700 4GB ECC Buffered RAM, 24GB total
Video Card(s)	Dual Nvidia GeForce GTX 465 (SLI)
Storage	Dual RAID0 Western Digital 10K RPM SAS drives
Display(s)	1x Samsung 27" LCD, 1x Samsung 24" LED
Case	HP
Audio Device(s)	Creative Sound Blaster Xi-Fi
Power Supply	1.1KW HP Power Supply
Software	Windows 7 Ultimate 64-bit

GTX465 SLI on HP Z800

serratedauto

Crap Daddy

INSTG8R

Vanguard Beta Tester

mastrdrver

serratedauto

mastrdrver

serratedauto

mastrdrver

newtekie1

Semi-Retired Folder

Fatal1ty39

Attachments

NC37

Processor	Intel Core i7 10850K@5.2GHz
Motherboard	AsRock Z470 Taichi
Cooling	Corsair H115i Pro w/ Noctua NF-A14 Fans
Memory	32GB DDR4-3600
Video Card(s)	RTX 2070 Super
Storage	500GB SX8200 Pro + 8TB with 1TB SSD Cache
Display(s)	Acer Nitro VG280K 4K 28"
Case	Fractal Design Define S
Audio Device(s)	Onboard is good enough for me
Power Supply	eVGA SuperNOVA 1000w G3
Software	Windows 10 Pro x64

System Name	AMD
Processor	AMD FX-8350 stock
Motherboard	Asus M5A99FX R2.0
Cooling	Noctua u12p se2
Memory	Kingston HyperX 8Gb 1600mhz
Video Card(s)	MSI GTX 760 4GB
Storage	Seagate 1TB
Display(s)	Packard Bell 22
Case	Coolermaster CM690 III
Audio Device(s)	Realtek® ALC892
Power Supply	OCZ ZS550W

System Name	Lailalo
Processor	Ryzen 9 5900X Boosts to 4.95Ghz
Motherboard	Asus TUF Gaming X570-Plus (WIFI
Cooling	Noctua
Memory	32GB DDR4 3200 Corsair Vengeance
Video Card(s)	XFX 7900XT 20GB
Storage	Samsung 970 Pro Plus 1TB, Crucial 1TB MX500 SSD, Segate 3TB
Display(s)	LG Ultrawide 29in @ 2560x1080
Case	Coolermaster Storm Sniper
Power Supply	XPG 1000W
Mouse	G602
Keyboard	G510s
Software	Windows 10 Pro / Windows 10 Home