Letting the 7900GT rip

yogurt_21 · Apr 7, 2006

umm wow this thread has gone from the overclocking of a 7900gt to warranties lol nice one!

anyways the 7900gt is a sweet deal at 300$ as it is and being able to overclock to those insane levels is awesome, nice to see that nv has no problems with overclocking the 1.1ns memory unliek ati on the x1900's lol.

newtekie1 · Apr 7, 2006

I agree, I for one am amazed to see the power that these things hold. It is looking like 700Mhz is more then possible with just a 1.4V mod, which can be done with a conductive pen and no soldering at all, and is completely reversable with acetone.

However, the artical doesn't mention anything about vmodding the RAM, so I wonder if the good RAM overclock was on stock voltages or if he also gave the RAM more voltage.

iluv2fly · Apr 10, 2006

Here is my experience.

I have a XFX 7900GT Extreme Edition 520/1500 (default speed)

I did the "easy volt" mod (ink) and the switching frequency mod (pencil). It took 15 minutes to perform both mods.

I swapped the heatsink to a Zalman VF700cu. (The stock heat sink is loud and hot running)

I run my Zalman at the slowest possible speed and it is completely quiet. Not bad for a top of the line graphics card. I hate fan noise!

As a comparison:
The Stock fan temperature was 52c idle and 83c during load. = LOUD
The Zalman at the slowest possible speed, 49c idle and 68 during load. = quiet

1.20 volt, max overclock: 540/1770
1.40 volt, max overclock: 645/1770
1.45 volt, max overclock: 662/1770
1.50 volt, max overclock: 682/1770
1.55 volt, max overclock: I haven’t tried it yet. But it looks like 700Mhz is possible.

I really have no need to push it further since my AMD 64 3200+ CPU is a total bottle neck. I ran a 3dmark05 with 7900GTX speed settings (650/1600). It scored 9603 3dmark05 points. A 4400+ X2 probably would have scored 10,500 to 11,000 points.

By the way. I paid $309 including shipping at ZipZoomfly.com

System Name	Thought I'd be done with this by now
Processor	i7 11700k 8/16
Motherboard	MSI Z590 Pro Wifi
Cooling	Be Quiet Dark Rock Pro 4, 9x aigo AR12
Memory	32GB GSkill TridentZ Neo DDR4-4000 CL18-22-22-42
Video Card(s)	MSI Ventus 2x Geforce RTX 3070
Storage	1TB MX300 M.2 OS + Games, + cloud mostly
Display(s)	Samsung 40" 4k (TV)
Case	Lian Li PC-011 Dynamic EVO Black
Audio Device(s)	onboard HD -> Yamaha 5.1
Power Supply	EVGA 850 GQ
Mouse	Logitech wireless
Keyboard	same
VR HMD	nah
Software	Windows 10
Benchmark Scores	no one cares anymore lols

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

Letting the 7900GT rip

yogurt_21

newtekie1

Semi-Retired Folder

iluv2fly

New Member