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HP DC7900 SFF as an XP Gaming Box

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First post, by squareguy

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HP DC7900

Product Specifications
http://h10032.www1.hp.com/ctg/Manual/c01549447.pdf
http://www8.hp.com/h20195/v2/GetDocument.aspx … cname=c04287292

FYI THESE THINGS ARE PROPRIETARY, PROCEED WITH THAT IN MIND.

These things are cheap and available and here are a few highlights. There are 3 different models. A Small Form Factor (SFF), a Convertible Minitower (CMT) and an Ultra-slim Form Factor (USFF). Do NOT get an USFF because these things are not upgradable and only have a 135-Watt PSU. The CMT is the most desirable of the 3 models with a 365-Watt PSU, support 75-Watts to PCI-e slot and have the most room inside. I have a couple CMT’s and SFF’s that I use daily and really like them.

I am going to focus on a budget build for a SFF DC7900 with 4GB DDR2, E8400 CPU (Core2 Duo 3.0-GHz), an upgraded video card and Windows XP SP2. Why? Well because they are small, usually cheap and are more of a challenge (which I like) due to one main issue. The PCI-e x16 slot only provides 35-Watts officially. Yes a CMT would be much more flexible, keep that in mind.

These things make easy Hackintoshes and that is how I found out about them a few years ago but we will not be covering that other than to talk about video cards. The best video card I could find that met the three main requirements (<35-Watt, low-profile and supported by Mac OS) was the Nvidia GT635 OEM graphics card which was a slightly faster GT630 Rev 2 (GK208 variant). A newer card from Nvidia is a much better choice now. It is actually the same card, only upgraded. Both use the GK208 GPU but this one has been upgraded to DDR5 for a massive increase in memory bandwidth. Meet the Nvidia GeForce GT730 version 3 (the one with the DDR5) with a maximum TDP of 38-Watts.

So what does the GT730 card offer? 7.22 gigapixels/second, 14.4 gigatextures/second and 40 gigabytes/second bandwidth. This is a serious upgrade from only 16 gigabytes/second memory bandwidth of the GT635 OEM card. GigaFLOPS and newer abilities aside (so just fill rates and bandwidth), that puts it on par with a 7900GT. Basically all Nvidia did with this card was to take a GeForce GT640 Rev 2 (GK208) DDR5 card, lower the core clock by about 150-MHz (reducing the TDP from 49-Watts to 38-Watts) and slap a new label on it.

Nvidia is so bad about confusion. Jim says, “Hey I just got a GT640!” Bill says, “Which one?” Jim says, “I don’t know but it’s a GT640.” Bill says, “It might be good, or it might suck.” Jim says, “F Nvidia, this is confusing.” I agree with Jim.

Now for audio. Either use the onboard sound, the GT730 HDMI audio, or you can install a low-profile PCI-e or PCI sound card. I guess you could even use a USB 2.0 external sound card but I never was a fan of those.

If I were to build a DC7900 CMT, I think I would choose a GTX750. Make sure to get a single slot card though because of the board layout and the fact that it is BTX. I have put a GTX750 in one before and I can say that the ASUS single slot card fits just fine.

Ok, enough rambling. I have an unused DC7900 SFF sitting right here with a GT635 OEM card in it. What benchmarks would you like to see, ones that might be useful? I will try to get a GT730 card soon as an upgrade for this box and then do a comparison of the benchmarks.

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 1 of 64, by PhilsComputerLab

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Interesting project! The newer card might be an issue for old games compatibility because the drivers will only go back so far. Did you check how far back it goes?

And what's up with Nvidia's driver archive, so annoying. I'm working on a project and when you search for the 7800GTX the oldest driver is from 2011. But for a 7800GT it is from 2006 which then does support all the 7 series cards 😵

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Reply 2 of 64, by squareguy

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I am sure it might be an issue for some games. The GK208 GPU is basically a Kepler refresh from 2013. It 'should' work well with most games. I just need a place to start and maybe ideas on a benchmark. Return to Castle Wolfenstein (2001), Far Cry (2004), Oblivion (2006), who knows?

Intel's Driver archive is also annoying 😉

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 3 of 64, by PhilsComputerLab

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Great games, which I use at the moment, for benchmarking are:

- Doom 3 (built in timedemo)
- F.E.A.R. (built in performance test)
- Far Cry (external Far Cry benchmarking suite)

If you do play with Far Cry I'm interested to see if you get land mass reflections in the water (set water quality to Ultra). People on GOG.com say it's OS related, others say it's driver / card related. I'm still benchmarking F.E.A.R. so haven't got around to checking it out yet.

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Reply 4 of 64, by squareguy

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ok starting with Far Cry

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 5 of 64, by fyy

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Going with 4GB ram on XP 32 bit is going to have issues. The complete max addressable space on 32 bit is 4GB, that's counting not just ram but motherboard devices and the video card itself. Basically it's going to go like this: 4GB - 256MB (motherboard stuff) - VRAM = Available RAM

So with 4GB ram and a 1GB video card you're looking at around 2.75GB of usable ram.

How much available memory is the system showing, and how much vram?

Reply 6 of 64, by PhilsComputerLab

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I don't see this as an issue. You are still better off compared to going with 2 GB memory.

Link to the Far Cry Benchmarking tool: http://downloads.guru3d.com/download.php?det=830

EDIT:

Displays correctly on a 7800GTX! More details in the Far Cry thread:

Far Cry

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Reply 7 of 64, by squareguy

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1GB VRAM
3.49GB System RAM

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 8 of 64, by squareguy

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Landmass and cloud reflections in water

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 9 of 64, by PhilsComputerLab

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squareguy wrote:

Landmass and cloud reflections in water

Nice! So that seems to confirm that the OS is the cause for this bug 😀

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Reply 10 of 64, by squareguy

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HDR really slowed it gown, guessing this is where that extra bandwidth would really help out. Tell me what settings you want to see.

Resolution: 1280×1024
Ultra quality option, Direct3D renderer
Level: Pier, demo: 1.tmd
Pixel shader: default model
Antialising: From System×
Anisotropic filtering: From System×
HDR: level 7
Geometry Instancing: disabled
Normal-maps compression: disabled

Score = 72.99 FPS (Run 1)
Score = 73.58 FPS (Run 2)
Average score = 73.28 FPS

Resolution: 1280×1024
Ultra quality option, Direct3D renderer
Level: Pier, demo: 1.tmd
Pixel shader: default model
Antialising: From System×
Anisotropic filtering: From System×
HDR: disabled
Geometry Instancing: disabled
Normal-maps compression: disabled

Score = 141.34 FPS (Run 1)
Score = 143.29 FPS (Run 2)
Average score = 142.31 FPS

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 11 of 64, by PhilsComputerLab

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These are awesome scores! That game is super playable. I guess you can move onto the next one.

F.E.A.R. is very demanding on the graphics card. A 7800GTX clearly struggles.

I use max settings but disable AA and enable soft shadows (you can't have both).

Doom 3 should also fly on that machine.

What are some other, later, XP and DirectX 9 games? I remember Bioshock being one of the first DX10 games in 2007 or so. Far Cry was 2004 so there must be some decent games in between. Half Life 2? Not sure if that has a good time demo.

Quake 4 maybe?

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Reply 12 of 64, by squareguy

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🤣 OK i downloaded the Quake 3 demo.

Default settings = 798.3FPS
High Quality = 781.2 FPS

High Quality @ 1280x1024 = 614.9 FPS

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 13 of 64, by PhilsComputerLab

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🤣 now those are some serious FPS 😀

Edit: Trying to think of games from 2005, 2006 and 2007.

F.E.A.R. is from 2005 and has a great benchmark built-in. A game I would love to benchmark from 2006 is Oblivion but it doesn't seem to have any benchmark built-in. With games from 2007 they already started to support DX10 or added DX10 support through patches.

Also looking for a DX9 game from 2002 or 2003 with good benchmarking feature built-in.

It's interesting to see how much more demanding F.E.A.R. is compared to Doom 3 and Far Cry.

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Reply 14 of 64, by PhilsComputerLab

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squareguy wrote:

Level: Pier, demo: 1.tmd

Where did you get this demo from? Couldn't find it in my benchmarking utility...

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Reply 15 of 64, by squareguy

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HardwareOC Benchmark Far Cry Benchmark v1.5

First demo under demo list, PC Games Hardware Demo

I installed Far Cry 1.0 then 1.1 patch, 1.3 patch, 1.31 patch and 1.33 patch

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 16 of 64, by PhilsComputerLab

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Of course! I mixed up the level names 😵

I went with Ubisoft - Training because it's a mix of indoor and outdoor. But looks like a GeForce 7 card has enough grunt to run this game. Haven't tested with HDR however 😀

I'm using the GOG.com version which has the 1.4 patch.

I identified a few more games. STALKER SOC from 2007. It should have a timedemo feature built in. Same goes for Half Life 2 series.

What about UT 3? Could have a time demo as well.

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Reply 17 of 64, by squareguy

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F.E.A.R

Ok now we are really getting to where I wish I already had the GT730 with its greater bandwidth.

1920x1080 Everything Maxed Out

Minimum: 18
Average: 34
Maximum: 76

1280x720 Everything Maxed Out

Minimum: 35
Average: 70
Maximum: 151

So totally playable at maximum settings @ 720P

Default resolution of 1024x768

Computer: High
Graphics: High

Minimum: 89
Average: 153
Maximum: 329

Computer: Maximum
Graphics: Maximum

Minimum: 42
Average: 80
Maximum: 176

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE

Reply 18 of 64, by PhilsComputerLab

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Nice 😀

Yes F.E.A.R. at Full HD is quite demanding. Can't wait to finish benchmarking with the 7800GTX and moving onto a 8800GT (if it works 😊 )

I got a few more games in my list to benchmark, a few I don't have yet and added to the Steam wishlist. Hopefully they are on sale in the near future 🤣

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Reply 19 of 64, by squareguy

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Alright I am not going to fight some of the issues I have had with Nvidia's installer requirements and a couple of other minor details so I installed XP SP3. HDMI audio is now functioning.

Gateway 2000 Case and 200-Watt PSU
Intel SE440BX-2 Motherboard
Intel Pentium III 450 CPU
Micron 384MB SDRAM (3x128)
Compaq Voodoo3 3500 TV Graphics Card
Turtle Beach Santa Cruz Sound Card
Western Digital 7200-RPM, 8MB-Cache, 160GB Hard Drive
Windows 98 SE