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Thread: 980GTX MSI vs Reference
Post: RE: 980GTX MSI vs Reference
| There's nothing special about superclocked or factory overclocked cards. They just have a bios that comes set at higher clocks, which you can easily do yourself. |
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epixoip |
Hardware
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20 |
41,564 |
05-27-2015, 10:20 AM |
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Thread: 980GTX MSI vs Reference
Post: RE: 980GTX MSI vs Reference
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rsberzerker Wrote: (05-25-2015, 01:36 AM)
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IMHO, I think it would be helpful you could post a way to ID reference cards from non-reference cards. What would a potential buyer look for? The most exp... |
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epixoip |
Hardware
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20 |
41,564 |
05-25-2015, 06:09 AM |
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Thread: 980GTX MSI vs Reference
Post: RE: 980GTX MSI vs Reference
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blackstarek Wrote: (05-25-2015, 01:56 AM)
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So If I have a single GPU/double GPU PC, is it big problem to have a OEM card? Cause It usualy doesn't suffer from over-heating. And secondary, would ther... |
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epixoip |
Hardware
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20 |
41,564 |
05-25-2015, 06:12 AM |
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Thread: 980GTX MSI vs Reference
Post: RE: 980GTX MSI vs Reference
| I never said reference designs cost more -- I said they cost more to manufacture. And the chipset manufacturer dictates the price, therefore the profit margins are very slim. This is why several OEMs... |
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epixoip |
Hardware
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20 |
41,564 |
05-27-2015, 07:23 AM |
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Thread: 980 TI Bench
Post: RE: 980 TI Bench
| None of the Maxwell cards have issue with heat. Even the Titan X at +225 runs low-mid 60s. |
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epixoip |
Hardware
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26 |
60,430 |
06-04-2015, 08:16 PM |
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Thread: 980 TI Bench
Post: RE: 980 TI Bench
| You're trying to compare single hash brute force vs multi-hash brute force speeds. Apples and oranges comparison. 10.5 GH/s for multi-hash when your single hash kernel gets 16.6 GH/s is pretty damn go... |
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epixoip |
Hardware
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26 |
60,430 |
06-05-2015, 04:51 AM |
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Thread: 980 TI Bench
Post: RE: 980 TI Bench
| Ok, let's math:
Perf/$ (MSRP)
R9 290X: 18.67M
GTX 970: 30.8M
GTX 980: 23.5M
GTX 980Ti: 30.3M
GTX Titan X: 18.9M
Perf/Watt
R9 290X: 34.2M
GTX 970: 72M
GTX 98... |
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epixoip |
Hardware
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26 |
60,430 |
06-07-2015, 06:48 AM |
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Thread: 980 TI Bench
Post: RE: 980 TI Bench
| Usually on register-bound algorithms like MD4 and MD5 the card runs close to TDP (or over TDP in the case of AMD, which is why we have to set Powertune to +50%.) Titan X for example draws 235W at +200... |
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epixoip |
Hardware
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26 |
60,430 |
06-07-2015, 11:22 AM |
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Thread: 980 TI Bench
Post: RE: 980 TI Bench
| MSRP and TDP are fixed variables, and Ivan Golubev's original tables used MSRP. |
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epixoip |
Hardware
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26 |
60,430 |
06-08-2015, 05:56 AM |
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Thread: Nvidia GTX 970 vs GTX 980
Post: RE: Nvidia GTX 970 vs GTX 980
| Please do not hijack threads, this is against forum rules.
To compare the performance of the GTX 970 vs GTX 980, see
https://gist.github.com/epixoip/e885edc473e74398faf6
https://gist.github.com... |
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epixoip |
Hardware
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1 |
4,812 |
06-15-2015, 07:11 AM |
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Thread: Asrock H81 & Radeon 7990 incompatibility
Post: RE: Asrock H81 & Radeon 7990 incompatibility
| 5x 7990 is 10 GPUs, and the AMD driver only supports 8. So even if it did boot, it wouldn't work. |
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epixoip |
Hardware
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15 |
27,298 |
06-16-2015, 11:24 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
| Sounds power-related to me. How big are the power supplies in these systems, and how many GPUs per system?
Most of the boards produced by Supermicro and Tyan have a clause buried deep in the docume... |
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epixoip |
Hardware
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16 |
25,317 |
06-26-2015, 10:24 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
| That's a sufficiently large PSU, but I'm still kind of leaning towards power. Here's why:
With two cards that violate the PCI-e spec, you receive errors. With a card that adheres to the PCI-e spec,... |
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epixoip |
Hardware
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16 |
25,317 |
06-27-2015, 11:51 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
| Just looks like an ASIC hang. +225 clock offset is rather aggressive (depending on the factory clocking), try reducing it to 200. |
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epixoip |
Hardware
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16 |
25,317 |
06-28-2015, 01:12 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
| Ah yeah, +225 would put you at well over 1500 Mhz. Should be just fine at +100, and you could probably go up to +200 without issue. But for testing purposes +100 is a good number. |
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epixoip |
Hardware
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16 |
25,317 |
06-28-2015, 07:57 PM |
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Thread: Build recommendation
Post: RE: Build recommendation
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epixoip |
Hardware
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15 |
21,662 |
06-30-2015, 06:42 AM |
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Thread: SuperMicro SYS-1028GQ-TRT
Post: RE: SuperMicro SYS-1028GQ-TRT
| This chassis can only accommodate passively-cooled GPUs with rear-mounted PCI-e power plugs. Desktop GPUs with active cooling and top-mounted PCI-e power plugs will not work. Also look at the air flow... |
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epixoip |
Hardware
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1 |
4,298 |
06-30-2015, 10:17 PM |
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Thread: 980GTX MSI vs Reference
Post: RE: 980GTX MSI vs Reference
| (You probably will not find a source for most of the things I say. If you do manage to find a source, you will likely see me quoted as that source's source.)
My source is first-hand experience and ... |
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epixoip |
Hardware
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20 |
41,564 |
07-02-2015, 06:09 AM |
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Thread: Build recommendation
Post: RE: Build recommendation
| My only criticism is the desktop tower. Save yourself some money and headaches and go with the Chenbro RM41300-FS81. It's like $50 cheaper, was designed for GPGPU, and can either be a floorstanding to... |
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epixoip |
Hardware
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15 |
21,662 |
07-03-2015, 01:14 PM |
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Thread: PCI SERR with AMD but not NVIDIA
Post: RE: PCI SERR with AMD but not NVIDIA
| Not weird at all... Re-read what I wrote in this thread, it all makes perfect sense :)
This is actually something we're fighting with right now, as we've learned that the 290X will kill the motherb... |
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epixoip |
Hardware
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16 |
25,317 |
07-04-2015, 10:56 PM |
