CookieTrooper
New Member
- Joined
- Mar 29, 2013
- Messages
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Hi everybody!
I recently got a Sapphire 7870 Boost (the one with a Tahiti LE Chip). I wanted to undervolt it, so I monitored it's voltage with GPU-Z. With the Sapphire Trixx Tool I lowered the Voltage from 1187 to 1000 without running into stability issues but got some strange data.
With the undervolted setting I got short voltage peaks, up to 1.470V, which i think could be dangerous for the chip. I ran this test with Furmark and Tomb Raider multiple times, so if the reading is wrong, it's very consistant.
When I tried to run Furmark at a fixed voltage setting of 1000 (which ran fine without "fixing" it), Furmark crashed.
When i tried Minecraft with the stock voltage i saw the same results as with the undervolted setting in Furmark and TR - short but very high voltage peaks.
So here are my questions:
- Are nearly 1.5V over a short period of time dangerous for the lifespan of a Tahiti LE GPU?
- Is there anything I can do about these peaks except setting the voltage to a fixed level?
- Is it possible that these peaks are just an error in measurement?
Thank you very much!
I recently got a Sapphire 7870 Boost (the one with a Tahiti LE Chip). I wanted to undervolt it, so I monitored it's voltage with GPU-Z. With the Sapphire Trixx Tool I lowered the Voltage from 1187 to 1000 without running into stability issues but got some strange data.
With the undervolted setting I got short voltage peaks, up to 1.470V, which i think could be dangerous for the chip. I ran this test with Furmark and Tomb Raider multiple times, so if the reading is wrong, it's very consistant.
When I tried to run Furmark at a fixed voltage setting of 1000 (which ran fine without "fixing" it), Furmark crashed.
When i tried Minecraft with the stock voltage i saw the same results as with the undervolted setting in Furmark and TR - short but very high voltage peaks.
So here are my questions:
- Are nearly 1.5V over a short period of time dangerous for the lifespan of a Tahiti LE GPU?
- Is there anything I can do about these peaks except setting the voltage to a fixed level?
- Is it possible that these peaks are just an error in measurement?
Thank you very much!